2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/ÁCIDO-BASE DÉBIL ácido débil grado disociación El ácido HA en concentración #conc M y a 25 °C tiene un grado de disociación de #gdis. Calcule:

La constante de disociación de dicho ácido.
El pH de la disolución

]]> 1.0000000 0.3333333 0 0 Ka = #kapH = #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>conc</mi><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>exka</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>40</mn><mo>,</mo><mn>58</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka1</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>exka</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>gdis</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka1</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka1</mi><mo>*</mo><mi>conc</mi><mo>)</mo></mrow></msqrt><mo>-</mo><mi>ka1</mi><mo>)</mo><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>gdis</mi><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>conc</mi><mo>*</mo><msup><mi>gdis</mi><mn>2</mn></msup><mo>/</mo><mo>(</mo><mn>1</mn><mo>-</mo><mi>gdis</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>K</mi><mi>a</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>k</mi><mi>a</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido débil grado disociación El ácido HA en concentración #conc M y a 25 °C, tiene una contante de acidez de #ba · 10 ^-#ex. Calcule:

El grado de disociación de dicho ácido.
El pH de la disolución

]]> 1.0000000 0.3333333 0 0 α = #gdispH = #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>conc</mi><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>58</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka1</mi><mo>=</mo><mi>ba</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>gdis</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka1</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka1</mi><mo>*</mo><mi>conc</mi><mo>)</mo></mrow></msqrt><mo>-</mo><mi>ka1</mi><mo>)</mo><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>gdis</mi><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>conc</mi><mo>*</mo><mo>(</mo><mi>gdis</mi><msup><mo>)</mo><mn>2</mn></msup><mo>/</mo><mo>(</mo><mn>1</mn><mo>-</mo><mi>gdis</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>α</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi mathvariant="normal">g</mi><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido débil grado disociación El ácido HA en concentración #conc M y a 25 °C tiene un grado de disociación de #gdis. Calcule:

La constante de disociación de dicho ácido.
El pH de la disolución

]]> 1.0000000 0.3333333 0 0 Ka = #kapH = #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>conc</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>exka</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>5</mn><mo>.</mo><mn>8</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka1</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>exka</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>gdis</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka1</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka1</mi><mo>*</mo><mi>conc</mi><mo>)</mo></mrow></msqrt><mo>-</mo><mi>ka1</mi><mo>)</mo><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>gdis</mi><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>conc</mi><mo>*</mo><msup><mi>gdis</mi><mn>2</mn></msup><mo>/</mo><mo>(</mo><mn>1</mn><mo>-</mo><mi>gdis</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>K</mi><mi>a</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>k</mi><mi>a</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido débil grado disociación El ácido HA en concentración #conc M y a 25 °C tiene un grado de disociación #gdis. Calcule:

La constante de disociación de dicho ácido.
El pH de la disolución

]]> 1.0000000 0.3333333 0 0 Ka = #kapH = #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>conc</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>100</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>exka</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>.</mo><mn>5</mn><mo>,</mo><mn>5</mn><mo>.</mo><mn>8</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka1</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>exka</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>gdis</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka1</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka1</mi><mo>*</mo><mi>conc</mi><mo>)</mo></mrow></msqrt><mo>-</mo><mi>ka1</mi><mo>)</mo><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>gdis</mi><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>conc</mi><mo>*</mo><msup><mi>gdis</mi><mn>2</mn></msup><mo>/</mo><mo>(</mo><mn>1</mn><mo>-</mo><mi>gdis</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">K</mi><mi>a</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>k</mi><mi>a</mi><mspace linebreak="newline"/><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido débil grado disociación (copia) El ácido HA en concentración #conc M y a 25 °C, tiene una contante de acidez de #ba · 10 ^-#ex. Calcule:

El grado de disociación de dicho ácido.
El pH de la disolución

]]> 1.0000000 0.3333333 0 0 α = #gdispH = #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>conc</mi><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>.</mo><mn>0</mn><mo>,</mo><mn>5</mn><mo>.</mo><mn>8</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka1</mi><mo>=</mo><mi>ba</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>gdis</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka1</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka1</mi><mo>*</mo><mi>conc</mi><mo>)</mo></mrow></msqrt><mo>-</mo><mi>ka1</mi><mo>)</mo><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>gdis</mi><mo>*</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>conc</mi><mo>*</mo><msup><mi>gdis</mi><mn>2</mn></msup><mo>/</mo><mo>(</mo><mn>1</mn><mo>-</mo><mi>gdis</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>α</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi mathvariant="normal">g</mi><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> cälcuio de pH en ácido débil a) ¿Cuál será el pH de #v1 cm³ de un ácido débil #mola M? (Ka=#kba)

b) ¿Y cuál será si le añadimos #v2 cm³ de agua? (considérese que los volúmenes son aditivos)

]]> 1.0000000 0.3333333 0 0 a) pH =#aci1b) pH =#aci2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>30</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bak</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>expo</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kba</mi><mo>=</mo><mi>bak</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>expo</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr1</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>mola</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh1</mi><mo>=</mo><mo>(</mo><mi>ohr1</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh1</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mi>v1</mi><mo>/</mo><mo>(</mo><mi>v1</mi><mo>+</mo><mi>v2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr2</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>molb</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh2</mi><mo>=</mo><mo>(</mo><mi>ohr2</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh2</mi><mo>)</mo></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>)</mo><mo> </mo><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>1</mn><mspace linebreak="newline"/><mi mathvariant="normal">b</mi><mo>)</mo><mo> </mo><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> cälcuio de pH en ácido débil a) ¿Cuál será el pH de #v1 cm³ de un ácido débil #mola M? (Ka=#kba)

b) ¿Y cuál será si le añadimos #v2 cm³ de agua? (considérese que los volúmenes son aditivos)

]]> 1.0000000 0.3333333 0 0 a) pH =#aci1b) pH =#aci2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>30</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bak</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>expo</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kba</mi><mo>=</mo><mi>bak</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>expo</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr1</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>mola</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh1</mi><mo>=</mo><mo>(</mo><mi>ohr1</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh1</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mi>v1</mi><mo>/</mo><mo>(</mo><mi>v1</mi><mo>+</mo><mi>v2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr2</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>molb</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh2</mi><mo>=</mo><mo>(</mo><mi>ohr2</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh2</mi><mo>)</mo></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>)</mo><mo> </mo><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>1</mn><mspace linebreak="newline"/><mi>b</mi><mo>)</mo><mo> </mo><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> cälcuio de pH en base débil a) ¿Cuál será el pH de #v1 cm³ de una base débil #mola M? (Kb=#kba)

b) ¿Y cuál será si le añadimos #v2 cm³ de agua? (considérese que los volúmenes son aditivos)

]]> 1.0000000 0.3333333 0 0 a) pH =#aci1b) pH =#aci2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>30</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bak</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>expo</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kba</mi><mo>=</mo><mi>bak</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>expo</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr1</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>mola</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh1</mi><mo>=</mo><mo>(</mo><mi>ohr1</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>poh1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh1</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci1</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>poh1</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mi>v1</mi><mo>/</mo><mo>(</mo><mi>v1</mi><mo>+</mo><mi>v2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr2</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>molb</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh2</mi><mo>=</mo><mo>(</mo><mi>ohr2</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>poh2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci2</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>poh2</mi></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>)</mo><mo> </mo><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>1</mn><mspace linebreak="newline"/><mi>b</mi><mo>)</mo><mo> </mo><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> cälcuio de pH en base débil a) ¿Cuál será el pH de #v1 cm³ de una base débil #mola M? (Kb=#kba)

b) ¿Y cuál será si le añadimos #v2 cm³ de agua? (considérese que los volúmenes son aditivos)

]]> 1.0000000 0.3333333 0 0 a) pH =#aci1b) pH =#aci2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>30</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bak</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>expo</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kba</mi><mo>=</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>*</mo><mi>bak</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>expo</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr1</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>mola</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh1</mi><mo>=</mo><mo>(</mo><mi>ohr1</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>poh1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh1</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci1</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>poh1</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mi>v1</mi><mo>/</mo><mo>(</mo><mi>v1</mi><mo>+</mo><mi>v2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohr2</mi><mo>=</mo><msqrt><mrow><mi>kba</mi><mo>*</mo><mo>(</mo><mi>kba</mi><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>molb</mi><mo>)</mo><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>oh2</mi><mo>=</mo><mo>(</mo><mi>ohr2</mi><mo>-</mo><mi>kba</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>poh2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>oh2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>aci2</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>poh2</mi></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>)</mo><mo> </mo><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>1</mn><mspace linebreak="newline"/><mi>b</mi><mo>)</mo><mo> </mo><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>a</mi><mi>c</mi><mi mathvariant="normal">i</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Calcula grado de disociación A 25 ºC la constante de basicidad de un compuesto es #bk· 10^{– #ek}. Si se tiene una disolución #cb M calcula:

El grado de disociación.
Su pH

]]> 1.0000000 0.3333333 0 0 α = #alpH = #phb]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bk</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>12</mn><mo>,</mo><mn>60</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ek</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cb</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kb</mi><mo>=</mo><mi>bk</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ek</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ra</mi><mo>=</mo><msqrt><mrow><msup><mi>kb</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kb</mi><mo>*</mo><mi>cb</mi><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>al</mi><mo>=</mo><mo>(</mo><mo>-</mo><mi>kb</mi><mo>+</mo><mi>ra</mi><mo>)</mo><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>cb</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phb</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>cb</mi><mo>*</mo><mi>al</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>α</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>a</mi><mi>l</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>b</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/><data name="inputCompound">true</data></localData></question> pH ácido débil Calcula el pH de la disolución de un ácido HA que contiene #mac g de dicho ácido en 100 ml. DATOS: Ka(HA) = #kab·10^-#kae . Masa molecular (HA)= #mmol

]]> 1.0000000 0.3333333 0 0 #ph <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>20</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kab</mi><mo>=</mo><mo> </mo><mi>aleatorio</mi><mo>(</mo><mn>11</mn><mo>,</mo><mn>65</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kab</mi><mo>=</mo><mi>kab</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kae</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>kab</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>kae</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>10</mn><mo>/</mo><mi>mmol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>chi</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka</mi><mo>*</mo><mi>mola</mi></mrow></msqrt><mo>)</mo><mo>-</mo><mi>ka</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>chi</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer>#ph</correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> pH ácido débil Calcula el pH de la disolución de un ácido HA que contiene #mac g de dicho ácido en 100 ml de disolución. DATOS: Ka (HA) = #kab·10^-#kae . Masa molecular (HA)= #mmol

]]> 1.0000000 0.3333333 0 0 #ph]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>10</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kab</mi><mo>=</mo><mo> </mo><mi>aleatorio</mi><mo>(</mo><mn>11</mn><mo>,</mo><mn>65</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kab</mi><mo>=</mo><mi>kab</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kae</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>kab</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>kae</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>10</mn><mo>.</mo><mn>0</mn><mo>/</mo><mi>mmol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>chi</mi><mo>=</mo><mo>(</mo><msqrt><mrow><msup><mi>ka</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka</mi><mo>*</mo><mi>mola</mi></mrow></msqrt><mo>)</mo><mo>-</mo><mi>ka</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>chi</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/ÁCIDO-BASE FUERTE Calcular soluto por el pH (ácido fuerte) Queremos preparar #vol cm³ de una disolución de HCl cuyo pH es #phdi. Determina la masa, en g, de ácido clorhídrico necesaria.

DATOS: A(Cl) = 35.5; A(H) = 1

]]> 1.0000000 0.3333333 0 0 #masa]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>400</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phdi</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>chd</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>phdi</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mols</mi><mo>=</mo><mi>chd</mi><mo>*</mo><mi>vol</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masa</mi><mo>=</mo><mi>mols</mi><mo>*</mo><mn>36</mn><mo>.</mo><mn>5</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>a</mi><mi mathvariant="normal">s</mi><mi>a</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> Calcular soluto por el pH (base fuerte) Queremos preparar #vol cm³ de una disolución de NaOH cuyo pH es #phd. Determina la masa, en g, de hidróxido de sodio necesaria.

DATOS: A(H) = 1; A(Na) = 23; A(O) = 16

]]> 1.0000000 0.3333333 0 0 #masa]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>400</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohc</mi><mo>=</mo><mo>-</mo><mn>14</mn><mo>+</mo><mi>phd</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohd</mi><mo>=</mo><msup><mn>10</mn><mi>ohc</mi></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mols</mi><mo>=</mo><mi>ohd</mi><mo>*</mo><mi>vol</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masa</mi><mo>=</mo><mi>mols</mi><mo>*</mo><mn>40</mn><mo>.</mo><mn>0</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>a</mi><mi mathvariant="normal">s</mi><mi>a</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> Cálculo de pH de ácido sulfúrico

¿Cuál será el pH de #vol cm³ una disolución #conc M en H₂SO₄?

Si le añadimos agua hasta los 500 cm³?

]]> 1.0000000 0.3333333 0 0 pH (disolución original) =#phdpH (disolución diluida) =#phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>80</mn><mo>)</mo><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>conc</mi><mo>*</mo><mn>2</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vol</mi><mo>*</mo><mi>conc</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>concf</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mn>0</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phf</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>concf</mi><mo>*</mo><mn>2</mn><mo>.</mo><mn>0</mn><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>o</mi><mi>r</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">g</mi><mi mathvariant="normal">i</mi><mi>n</mi><mi>a</mi><mi>l</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>d</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>d</mi><mi mathvariant="normal">i</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">i</mi><mi>d</mi><mi>a</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data><data name="inputCompound">true</data></localData></question> Cálculo de pH de HCl

¿Cuál será el pH de #vol cm³ una disolución #conc M en HCl?

Si le añadimos agua hasta los 500 cm³?

]]> 1.0000000 0.3333333 0 0 pH (disolución original) =#phdpH (disolución diluida) =#phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>80</mn><mo>)</mo><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vol</mi><mo>*</mo><mi>conc</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>concf</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mn>0</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phf</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>concf</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>o</mi><mi>r</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">g</mi><mi mathvariant="normal">i</mi><mi>n</mi><mi>a</mi><mi>l</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>d</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>d</mi><mi mathvariant="normal">i</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">i</mi><mi>d</mi><mi>a</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/><data name="inputCompound">true</data></localData></question> Cálculo de pH de NaOH

¿Cuál será el pH de #vol cm³ una disolución #conc M en NaOH?

¿Y si le añadimos agua hasta los 500 cm³?

]]> 1.0000000 0.3333333 0 0 pH (disolución original) =#phdpH (disolución diluida) =#phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>80</mn><mo>)</mo><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>pohd</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>pohd</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vol</mi><mo>*</mo><mi>conc</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>concf</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mn>0</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>pohf</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>concf</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phf</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>pohf</mi></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>o</mi><mi>r</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">g</mi><mi mathvariant="normal">i</mi><mi>n</mi><mi>a</mi><mi>l</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>d</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>d</mi><mi mathvariant="normal">i</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">i</mi><mi>d</mi><mi>a</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/><data name="inputCompound">true</data></localData></question> Cálculo de pH de NaOH

¿Cuál será el pH de #vol cm³ una disolución #conc M en NaOH?

¿Y si le añadimos agua hasta los 500 cm³?

]]> 1.0000000 0.3333333 0 0 pH (disolución original) =#phdpH (disolución diluida) =#phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>10</mn><mo>,</mo><mn>80</mn><mo>)</mo><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>pohd</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>conc</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>pohd</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vol</mi><mo>*</mo><mi>conc</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>concf</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mn>0</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>pohf</mi><mo>=</mo><mo>-</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>concf</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phf</mi><mo>=</mo><mn>14</mn><mo>-</mo><mi>pohf</mi></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>o</mi><mi>r</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">g</mi><mi mathvariant="normal">i</mi><mi>n</mi><mi>a</mi><mi>l</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>d</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>(</mo><mi>d</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>c</mi><mi mathvariant="normal">i</mi><mi>ó</mi><mi>n</mi><mo> </mo><mi>d</mi><mi mathvariant="normal">i</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">i</mi><mi>d</mi><mi>a</mi><mo>)</mo><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/><data name="inputCompound">true</data></localData></question> pH base fuerte Se disuelven #masa gramos de KOH en un matraz y se llena hasta 500 cm³. Calcula su pH

DATOS: A (H) =1; A (K) =39.1; A (O) = 16

]]> 1.0000000 0.3333333 0 0 #ph <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masa</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>10</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mn>39</mn><mo>.</mo><mn>1</mn><mo>+</mo><mn>16</mn><mo>+</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>nmol</mi><mo>=</mo><mi>masa</mi><mo>/</mo><mi>mmol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>conc</mi><mo>=</mo><mi>nmol</mi><mo>/</mo><mn>0</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph</mi><mo>=</mo><mn>14</mn><mo>+</mo><msub><mi>log</mi><mn>10</mn></msub><mo>(</mo><mi>conc</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer>#ph</correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/DISOLUCIONES TAMPÓN amortiguadora con ácido fuerte Tenemos una disolución #msal M en NH₄Cl y #mbas M en amoniaco:

Calcula su pH
Calcula el pH resultante si a #vol cm³ de dicha disolución le añadimos #volac cm³ de una disolución #macl M en HCl. (considera los volúmenes aditivos)

Dato: Kb (NH3) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 pH = #ph1pH = #ph2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macl</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macl</mi><mo>=</mo><mi>macl</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>20</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mbas</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>macl</mi><mo>*</mo><mi>volac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbam</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsam</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cb2</mi><mo>=</mo><mo>(</mo><mi>molbam</mi><mo>-</mo><mi>molac</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cs2</mi><mo>=</mo><mo>(</mo><mi>molsam</mi><mo>+</mo><mi>molac</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph2</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>cb2</mi><mo>/</mo><mi>cs2</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn><mspace linebreak="newline"/><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> amortiguadora con ácido fuerte (exceso ácido) Tenemos una disolución #msal M en NH₄Cl y #mbas M en amoniaco:

Calcula su pH
Calcula el pH resultante si a #vol cm³ de dicha disolución le añadimos #volac cm³ de una disolución #macl M en HCl. (considera los volúmenes aditivos)

Dato: Kb (NH₃) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 #molacpH = #ph1pH = #ph2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macl</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macl</mi><mo>=</mo><mi>macl</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>60</mn><mo>,</mo><mn>100</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mbas</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>macl</mi><mo>*</mo><mi>volac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbam</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsam</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molac</mi><mo>></mo><mi>molbam</mi></mrow><mtable><mtr><mtd><mi>ca2</mi><mo>=</mo><mo>(</mo><mi>molac</mi><mo>-</mo><mi>molbam</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>ca2</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cb2</mi><mo>=</mo><mo>(</mo><mi>molbam</mi><mo>-</mo><mi>molac</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>cs2</mi><mo>=</mo><mo>(</mo><mi>molsam</mi><mo>+</mo><mi>molac</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>cb2</mi><mo>/</mo><mi>cs2</mi><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>o</mi><mi>l</mi><mi>a</mi><mi>c</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mn>1</mn><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> amortiguadora con ácido fuerte (exceso ácido) Tenemos una disolución #msal M en NH₄Cl y #mbas M en amoniaco:

Calcula su pH
Calcula el pH resultante si a #vol cm³ de dicha disolución le añadimos #volac cm³ de una disolución #macl M en HCl. (considera los volúmenes aditivos)

Dato: Kb (NH₃) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 pH = #ph1pH = #ph2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macl</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macl</mi><mo>=</mo><mi>macl</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>60</mn><mo>,</mo><mn>100</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mbas</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>macl</mi><mo>*</mo><mi>volac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbam</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsam</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molac</mi><mo>></mo><mi>molbam</mi></mrow><mtable><mtr><mtd><mi>ca2</mi><mo>=</mo><mo>(</mo><mi>molac</mi><mo>-</mo><mi>molbam</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>ca2</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cb2</mi><mo>=</mo><mo>(</mo><mi>molbam</mi><mo>-</mo><mi>molac</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>cs2</mi><mo>=</mo><mo>(</mo><mi>molsam</mi><mo>+</mo><mi>molac</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volac</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>cb2</mi><mo>/</mo><mi>cs2</mi><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn><mspace linebreak="newline"/><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> amortiguadora con base fuerte Tenemos una disolución #msal M en etanoato de sodio y #mac M en ácido etanoico:

Calcula su pH
Calcula el pH resultante si a #vol cm³ de dicha disolución le añadimos #volba cm³ de una disolución #mbas M en NaOH. (considera los volúmenes aditivos)

Dato: Kb (CH₃COOH) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 pH = #ph1pH = #ph2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>20</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mac</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molba</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mi>volba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molacm</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsam</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cs2</mi><mo>=</mo><mo>(</mo><mi>molsam</mi><mo>+</mo><mi>molba</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ca2</mi><mo>=</mo><mo>(</mo><mi>molacm</mi><mo>-</mo><mi>molba</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>ca2</mi><mo>/</mo><mi>cs2</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn><mspace linebreak="newline"/><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> amortiguadora con base fuerte (exceso base) Tenemos una disolución #msal M en etanoato de sodio y #mac M en ácido etanoico:

Calcula su pH
Calcula el pH resultante si a #vol cm³ de dicha disolución le añadimos #volba cm³ de una disolución #mbas M en NaOH. (considera los volúmenes aditivos)

Dato: Ka (CH₃COOH) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 pH = #ph1pH = #ph2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>60</mn><mo>,</mo><mn>100</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mac</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molba</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mi>volba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molacm</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsam</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molba</mi><mo>></mo><mi>molacm</mi></mrow><mtable><mtr><mtd><mi>cba2</mi><mo>=</mo><mo>(</mo><mi>molba</mi><mo>-</mo><mi>molacm</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>cba2</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cs2</mi><mo>=</mo><mo>(</mo><mi>molsam</mi><mo>+</mo><mi>molba</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ca2</mi><mo>=</mo><mo>(</mo><mi>molacm</mi><mo>-</mo><mi>molba</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>ca2</mi><mo>/</mo><mi>cs2</mi><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn><mspace linebreak="newline"/><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> amortiguadora con base fuerte (exceso base) Tenemos una disolución #msal M en etanoato de sodio y #mac M en ácido etanoico:

Calcula su pH
Calcula el pH resultante si a #vol cm³ de dicha disolución le añadimos #volba cm³ de una disolución #mbas M en NaOH. (considera los volúmenes aditivos)

Dato: Kb (CH₃COOH) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 pH = #ph1pH = #ph2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>60</mn><mo>,</mo><mn>100</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mac</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molba</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mi>volba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molacm</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsam</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mi>vol</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molba</mi><mo>></mo><mi>molacm</mi></mrow><mtable><mtr><mtd><mi>cba2</mi><mo>=</mo><mo>(</mo><mi>molba</mi><mo>-</mo><mi>molacm</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>cba2</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cs2</mi><mo>=</mo><mo>(</mo><mi>molsam</mi><mo>+</mo><mi>molba</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ca2</mi><mo>=</mo><mo>(</mo><mi>molacm</mi><mo>-</mo><mi>molba</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vol</mi><mo>+</mo><mi>volba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>ph2</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>ca2</mi><mo>/</mo><mi>cs2</mi><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn><mspace linebreak="newline"/><mi>p</mi><mi mathvariant="normal">H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Calculo de masa de sal Tenemos #volac cm³ de una disolución #mac M en un ácido HA ¿Qué masa, en gramos, de NaA tendremos que añadir si queremos obtener una disolución amortiguadora cuyo pH sea #phres?

(Suponemos que no hay aumento de volumen)

Datos : Ka = #kab·10^-#kae; Masa molecular de la sal de sodio = #molsal

]]> 1.0000000 0.3333333 0 0 #msal <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>150</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molsal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>50</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>40</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kab</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kab</mi><mo>=</mo><mi>kab</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kae</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>kab</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>kae</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>hid</mi><mo>=</mo><mo>(</mo><mo>-</mo><mi>ka</mi><mo>+</mo><msqrt><mrow><mo>(</mo><mi>ka</mi><mo>*</mo><mi>ka</mi><mo>)</mo><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka</mi><mo>*</mo><mi>mac</mi></mrow></msqrt><mo>)</mo><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phor</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>hid</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mi>phor</mi><mo>+</mo><mn>0</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>consal</mi><mo>=</mo><mi>ka</mi><mo>*</mo><mi>mac</mi><mo>/</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>phres</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>consal</mi><mo>*</mo><mi>molsal</mi><mo>*</mo><mi>volac</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer>#msal</correctAnswer></correctAnswers><assertions><assertion name="syntax_expression"/><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> mezcla de disoluciones Halla el pH de una disolución preparada mezclando 50 ml de disolución #mac M en ácido acético con 50 ml de una disolución #mba M de hidróxido de potasio. (considera los volúmenes aditivos)

Datos Ka ( ac. acético) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 #ph]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mo> </mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>18</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>mba</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>macf</mi><mo>=</mo><mo>(</mo><mi>mac</mi><mo>-</mo><mi>mba</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>mba</mi><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>macf</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> mezcla de disoluciones base débil+ ácido fuerte Halla el pH de una disolución preparada mezclando 50 ml de disolución #mba M en amoniaco con 50 ml de una disolución #mac M de ácido clorhídrico. (considera los volúmenes aditivos)

Datos Kb (amoniaco) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 #ph]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mo> </mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>90</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>18</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>mba</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbaf</mi><mo>=</mo><mo>(</mo><mi>mba</mi><mo>-</mo><mi>mac</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>mac</mi><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup><mo>*</mo><mi>mbaf</mi><mo>/</mo><mi>msal</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> SAL + ÁCIDO Calcular el pH de la disolución resultante de añadir #msal gramos de NaF a #vola cm³ de una disolución #mola M en HF.

Datos: Ka (HF) = 6.8·10^-4 ; Masas atómicas : F=19; Na = 23; H= 1

]]> 1.0000000 0.3333333 0 0 #ph1]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>20</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>100</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>4</mn><mo>,</mo><mn>15</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>csal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>1000</mn><mo>/</mo><mo>(</mo><mn>42</mn><mo>*</mo><mi>vola</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>hid</mi><mo>=</mo><mn>6</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>4</mn></mrow></msup><mo>*</mo><mi>mola</mi><mo>/</mo><mi>csal</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ph1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>hid</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/ESTEQUIOMETRÍA Masa soluto con pH (acido) ¿Cuántos gramos de ácido sulfúrico se necesitan para preparar #volu mL de una disolución acuosa de pH = #phd?

Masas atómica: H = 1; O = 16; S = 32.1

]]> 1.0000000 0.3333333 0 0 #masol]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volu</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mo>{</mo><mn>100</mn><mo>,</mo><mn>250</mn><mo>,</mo><mn>500</mn><mo>,</mo><mn>1000</mn><mo>}</mo><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mn>98</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>csol</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>phd</mi></mrow></msup><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masol</mi><mo>=</mo><mi>mmol</mi><mo>*</mo><mi>csol</mi><mo>*</mo><mi>volu</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>a</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Masa soluto con pH (acido) ¿Cuántos gramos de ácido clorhídrico se necesitan para preparar #volu mL de una disolución acuosa de pH = #phd?

Masas atómica: Cl = 35.5; H = 1;

]]> 1.0000000 0.3333333 0 0 #masol]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>5</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volu</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mo>{</mo><mn>100</mn><mo>,</mo><mn>250</mn><mo>,</mo><mn>500</mn><mo>,</mo><mn>1000</mn><mo>}</mo><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mn>36</mn><mo>.</mo><mn>5</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>csol</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>phd</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masol</mi><mo>=</mo><mi>mmol</mi><mo>*</mo><mi>csol</mi><mo>*</mo><mi>volu</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>a</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Masa soluto con pH (base) ¿Cuántos gramos de hidróxido de potasio se necesitan para preparar #volu mL de una disolución acuosa de pH = #phd?

Masas atómica: H = 1; K = 39.1; O = 16

]]> 1.0000000 0.3333333 0 0 #masol]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>9</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volu</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mo>{</mo><mn>100</mn><mo>,</mo><mn>250</mn><mo>,</mo><mn>500</mn><mo>,</mo><mn>1000</mn><mo>}</mo><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mn>56</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>csol</mi><mo>=</mo><msup><mn>10</mn><mrow><mi>phd</mi><mo>-</mo><mn>14</mn></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masol</mi><mo>=</mo><mi>mmol</mi><mo>*</mo><mi>csol</mi><mo>*</mo><mi>volu</mi><mo>/</mo><mn>1000</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>a</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Masa soluto con pH (base) ¿Cuántos gramos de hidróxido de calcio se necesitan para preparar #volu mL de una disolución acuosa de pH = #phd?

Masas atómica: Ca = 40; H = 1; O = 16

]]> 1.0000000 0.3333333 0 0 #masol]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phd</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>9</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volu</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mo>{</mo><mn>100</mn><mo>,</mo><mn>250</mn><mo>,</mo><mn>500</mn><mo>,</mo><mn>1000</mn><mo>}</mo><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mmol</mi><mo>=</mo><mn>74</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>csol</mi><mo>=</mo><msup><mn>10</mn><mrow><mi>phd</mi><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>masol</mi><mo>=</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>*</mo><mi>mmol</mi><mo>*</mo><mi>csol</mi><mo>*</mo><mi>volu</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">m</mi><mi>a</mi><mi mathvariant="normal">s</mi><mi>o</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/HIDRÓLISIS Calcular concentración sal ácido débil - base débil Tenemos una disolución #mols M de BA . Calcula cuál será su pH.

K_a (HA) = #bas·10^-#ex

K_b (BOH) = #bas2·10^-#ex2

K_a (HA) = #bas·10^-#ex

K_b (BOH) = #bas2·10^-#ex2

K_a (HA) = #bas·10^-#ex

]]> 1.0000000 0.3333333 0 0 #msal]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>0</mn><mo>.</mo><mn>01</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>15</mn><mo>,</mo><mn>86</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>bas</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>ka</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>raizc</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>msal</mi><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ohc</mi><mo>=</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>raizc</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>ohc</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>ms</mi><mi>a</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"></data></localData></question> Calcular concentración sal ácido fuerte - base débil Tenemos una disolución de BCl cuyo pH es #phres. Calcula su molaridad en BCl

K_b (BOH) = #bas·10^-#ex

]]> 1.0000000 0.3333333 0 0 #msal]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>0</mn><mo>.</mo><mn>01</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>15</mn><mo>,</mo><mn>86</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>bas</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>ka</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>raizc</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>msal</mi><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>hc</mi><mo>=</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>raizc</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>hc</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>ms</mi><mi>a</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Calcular concentración sal ácido fuerte - base débil Tenemos una disolución de BNO₃ cuyo pH es #phres. Calcula su molaridad en BNO₃

K_b (BOH) = #bas·10^-#ex

]]> 1.0000000 0.3333333 0 0 #msal]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>msal</mi><mo>*</mo><mn>0</mn><mo>.</mo><mn>01</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>15</mn><mo>,</mo><mn>86</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>bas</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>ka</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>raizc</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>msal</mi><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>hc</mi><mo>=</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>raizc</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>hc</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>ms</mi><mi>a</mi><mi mathvariant="normal">l</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Calcular pH sal ácido débil - base fuerte Tenemos una disolución #msal M en CaA₂. Calcula su pH

K_a (HA) = #bas·10^-#ex

K_a (HF) = 7·10^-4

K_a (HA) = #bas·10^-#ex

K_b (BOH) = #bas·10^-#ex

K_b (NH₃) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 true Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> HNO₃

]]> Ácido HPO₄^-2

]]> Anfótero H₂PO₄^-1

]]> Anfótero CH₃COO^-

]]> Básico HCOO^-

]]> Básico NH₃

]]> Básico CH₄

]]> Ninguno de éllos H₂S

]]> Ácido Ácido-básico HCO₃^-

]]> Anfótero Basico-Acido Brönsted-Lowry Indica la base conjugada correspondiente a las siguientes formas ácidas

]]> 1.0000000 0.3333333 0 true Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> HSO₄^-

]]> ión sulfato ácido sulfúrico NH₄⁺

]]> amoniaco H₂SO₄

]]> ion hidrógenosulfato HCN

]]> ión cianuro H₂O

]]> ion hidroxilo H₃O⁺

]]> agua no tiene Brönsted-Lowry (II) Indica el ácido conjugado correspondiente a las siguientes formas básicas.

]]> 1.0000000 0.3333333 0 true Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> HSO₄^-

]]> ácido sulfúrico ion sulfato NH₃

]]> ion amonio SO₄^2-

]]> ion hidrógenosulfato SCN^-

]]> ácido tiocianhídrico OH^-

]]> agua H₂O

]]> ion hidronio no tiene Neutralización ácido débil - base débil Si neutralizamos una disolución de un ácido débil con una base débil, la disolución resultante será

]]> 1.0000000 0.3333333 0 true true abc Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> Ácida

]]> Básica

]]> Neutra

]]> Dependerá de las concentraciones del ácido y de la base

]]> No se puede saber. Necesitaríamos más datos

]]> Neutralización ácido débil - base fuerte Si neutralizamos una disolución de un ácido débil con una base fuerte, la disolución resultante será

]]> 1.0000000 0.3333333 0 true true abc Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> Ácida

]]> Básica

]]> Neutra

]]> Dependerá de las concentraciones del ácido y de la base

]]> No se puede saber. Necesitaríamos más datos

]]> Neutralización ácido fuerte - base débil Si neutralizamos una disolución de un ácido fuerte con una base débil, la disolución resultante será

]]> 1.0000000 0.3333333 0 true true abc Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> Ácida

]]> Básica

]]> Neutra

]]> Dependerá de las concentraciones del ácido y de la base

]]> No se puede saber. Necesitaríamos más datos

]]> Neutralización ácido fuerte - base fuerte Si neutralizamos una disolución de un ácido fuerte con una base fuerte, la disolución resultante será

]]> 1.0000000 0.3333333 0 true true abc Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> Ácida

]]> Básica

]]> Neutra

]]> Dependerá de las concentraciones del ácido y de la base

]]> No se puede saber. Necesitaríamos más datos

]]> Sal ácido y base debil Tenemos una disolución de una sal BA. Indicar si su disolución en agua será ácida, básica o neutra

]]> 1.0000000 0.3333333 0 true Respuesta correcta

]]> Respuesta parcialmente correcta.

]]> Respuesta incorrecta.

]]> Ka= #b1·10^-#e1 y Kb = #b2·10^-#e2

]]> Básica Ka= #b3·10^-#e3 y Kb = #b4·10^-#e4

]]> Básica Ka= #b4·10^-#e4 y Kb = #b3·10^-#e5

]]> Ácida Ka= #b4·10^-#e4 y Kb = #b4·10^-#e4

]]> Neutra Anfótera Ka= #b1·10^-#e5 y Kb = #b3·10^-#e2

]]> Básica Ka= #b3·10^-#e4 y Kb = #b1·10^-#e5

]]> Ácida <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>b1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>b2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>7</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>b3</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>b4</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>b5</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>7</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>7</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>3</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e3</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e4</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>4</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e5</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>8</mn><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><options><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="casSession"/></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/VALORACIONES/FUERTE - FUERTE ácido fuerte - base fuerte Se hacen reaccionar #vola mL de ácido clorhídrico #mola M con #volb mL de hidróxido de sodio #molb M. Calcula el pH resultante.

]]> 1.0000000 0.3333333 0 0 #ph1]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volb</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>molb</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>nma</mi><mo>=</mo><mi>vola</mi><mo>*</mo><mi>mola</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>nmb</mi><mo>=</mo><mi>volb</mi><mo>*</mo><mi>molb</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>nma</mi><mo>></mo><mi>nmb</mi></mrow><mtable><mtr><mtd><mi>nma2</mi><mo>=</mo><mi>nma</mi><mo>-</mo><mi>nmb</mi></mtd></mtr><mtr><mtd><mi>ph1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>nma2</mi><mo>/</mo><mo>(</mo><mi>vola</mi><mo>+</mo><mi>volb</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>nmb2</mi><mo>=</mo><mi>nmb</mi><mo>-</mo><mi>nma</mi></mtd></mtr><mtr><mtd><mi>ph1</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>nmb2</mi><mo>/</mo><mo>(</mo><mi>vola</mi><mo>+</mo><mi>volb</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido fuerte - base fuerte Se hacen reaccionar #vola mL de ácido sulfúrico #mola M con #volb mL de hidróxido de sodio #molb M. Calcula el pH resultante.

]]> 1.0000000 0.3333333 0 0 #ph1]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>volb</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>200</mn><mo>,</mo><mn>300</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>mola</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>100</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>molb</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>100</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>nma</mi><mo>=</mo><mi>vola</mi><mo>*</mo><mi>mola</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>nmb</mi><mo>=</mo><mi>volb</mi><mo>*</mo><mi>molb</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>nma</mi><mo>></mo><mi>nmb</mi></mrow><mtable><mtr><mtd><mi>nma2</mi><mo>=</mo><mi>nma</mi><mo>-</mo><mi>nmb</mi></mtd></mtr><mtr><mtd><mi>ph1</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>nma2</mi><mo>/</mo><mo>(</mo><mi>vola</mi><mo>+</mo><mi>volb</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>nmb2</mi><mo>=</mo><mi>nmb</mi><mo>-</mo><mi>nma</mi></mtd></mtr><mtr><mtd><mi>ph1</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>nmb2</mi><mo>/</mo><mo>(</mo><mi>vola</mi><mo>+</mo><mi>volb</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mn>1</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Neutralización ácido fuerte - base fuerte Tenemos una disolución que contienen #mhid gramos de NaOH. Calcular el volumen, en cm³, de solución #cmol M de HNO₃ necesario para su total neutralización.

]]> 1.0000000 0.3333333 0 0 #vol ]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mhid</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>20</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cmol</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>8</mn><mo>,</mo><mn>30</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>cmol</mi><mo>=</mo><mi>cmol</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>nmh</mi><mo>=</mo><mi>mhid</mi><mo>/</mo><mn>40</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vol</mi><mo>=</mo><mi>nmh</mi><mo>*</mo><mn>1000</mn><mo>/</mo><mi>cmol</mi></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>v</mi><mi>o</mi><mi mathvariant="normal">l</mi><mo> </mo></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Neutralización de una mezcla Se mezclan #vac1 ml de ácido sulfúrico #mac1 M y #vb1 ml de hidróxido potásico #mb1 M. ¿Qué volumen, en cm³, de hidroxido de sodio #mba2 M se necesitaría para neutralizar esta mezcla?. (considérense los volúmenes aditivos)

]]> 1.0000000 0.3333333 0 0 #vba2]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vb1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>12</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mb1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mih</mi><mo>=</mo><mi>vac1</mi><mo>*</mo><mi>mac1</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mioh</mi><mo>=</mo><mi>vb1</mi><mo>*</mo><mi>mb1</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mih</mi><mo>></mo><mi>mioh</mi></mrow><mtable><mtr><mtd><mi>mfh</mi><mo>=</mo><mi>mih</mi><mo>-</mo><mi>mioh</mi></mtd></mtr><mtr><mtd><mi>vba2</mi><mo>=</mo><mi>mfh</mi><mo>/</mo><mi>mba2</mi></mtd></mtr></mtable><mrow><mi>vba2</mi><mo>=</mo><mn>0</mn></mrow></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>v</mi><mi mathvariant="normal">b</mi><mi>a</mi><mn>2</mn></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Neutralización de una mezcla Se mezclan #vac1 ml de ácido nítrico #mac1 M y #vb2 ml de hidróxido cálcico #mb2 M. ¿Qué volumen, en cm³, de ácido clorhídrico #mac2 M se necesitaría para neutralizar esta mezcla?. (considérense los volúmenes aditivos)

]]> 1.0000000 0.3333333 0 0 #vac2 <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vb2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mb2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>12</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mih</mi><mo>=</mo><mi>vac1</mi><mo>*</mo><mi>mac1</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mioh</mi><mo>=</mo><mi>vb2</mi><mo>*</mo><mi>mb2</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mioh</mi><mo>></mo><mi>mih</mi></mrow><mtable><mtr><mtd><mi>mfoh</mi><mo>=</mo><mi>mioh</mi><mo>-</mo><mi>mih</mi></mtd></mtr><mtr><mtd><mi>vac2</mi><mo>=</mo><mi>mfoh</mi><mo>/</mo><mi>mac2</mi></mtd></mtr></mtable><mrow><mi>vac2</mi><mo>=</mo><mn>0</mn></mrow></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer>#vac2</correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> Neutralización de una mezcla Se mezclan #vac1 ml de ácido sulfúrico #mac1 M y #vb1 ml de hidróxido potásico #mb1 M. ¿Qué volumen, en cm³, de hidroxido de sodio #mba2 M se necesitaría para neutralizar esta mezcla?. (considérense los volúmenes aditivos)

]]> 1.0000000 0.3333333 0 0 #vac2 <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vb2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>70</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mb2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>12</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac2</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>18</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mih</mi><mo>=</mo><mi>vac1</mi><mo>*</mo><mi>mac1</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mioh</mi><mo>=</mo><mi>vb2</mi><mo>*</mo><mi>mb2</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mioh</mi><mo>></mo><mi>mih</mi></mrow><mtable><mtr><mtd><mi>mfoh</mi><mo>=</mo><mi>mioh</mi><mo>-</mo><mi>mih</mi></mtd></mtr><mtr><mtd><mi>vac2</mi><mo>=</mo><mi>mfoh</mi><mo>/</mo><mi>mac2</mi></mtd></mtr></mtable><mrow><mi>vac2</mi><mo>=</mo><mn>0</mn></mrow></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer>#vac2</correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> pH en una valoración Tenemos #vbas cm³ de una disolución #mbas M en NaOH. Calcula el pH resultante si le añadimos #vac cm³ de una disolución #mac M en HNO₃

]]> 1.0000000 0.3333333 0 0 #phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbas</mi><mo>=</mo><mi>vbas</mi><mo>*</mo><mi>mbas</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molbas</mi><mo>></mo><mi>molac</mi></mrow><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molbas</mi><mo>-</mo><mi>molac</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molac</mi><mo>-</mo><mi>molbas</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> pH en una valoración Tenemos #vac cm³ de una disolución #mac M en HCl . Calcula el pH resultante si le añadimos #vbas cm³ de una disolución #mbas M en NaOH

]]> 1.0000000 0.3333333 0 0 #phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbas</mi><mo>=</mo><mi>vbas</mi><mo>*</mo><mi>mbas</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molbas</mi><mo>></mo><mi>molac</mi></mrow><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molbas</mi><mo>-</mo><mi>molac</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molac</mi><mo>-</mo><mi>molbas</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> pH en una valoración Tenemos #vbas cm³ de una disolución #mbas M en Ca(OH)₂. Calcula el pH resultante si le añadimos #vac cm³ de una disolución #mac M en HNO₃

]]> 1.0000000 0.3333333 0 0 #phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbas</mi><mo>=</mo><mi>vbas</mi><mo>*</mo><mi>mbas</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molbas</mi><mo>></mo><mi>molac</mi></mrow><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molbas</mi><mo>-</mo><mi>molac</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molac</mi><mo>-</mo><mi>molbas</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> pH en una valoración Tenemos #vbas cm³ de una disolución #mbas M en Ca(OH)₂. Calcula el pH resultante si le añadimos #vac cm³ de una disolución #mac M en H₂SO₄

]]> 1.0000000 0.3333333 0 0 #phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbas</mi><mo>=</mo><mi>vbas</mi><mo>*</mo><mi>mbas</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molbas</mi><mo>></mo><mi>molac</mi></mrow><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molbas</mi><mo>-</mo><mi>molac</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molac</mi><mo>-</mo><mi>molbas</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> pH en una valoración Tenemos #vbas cm³ de una disolución #mbas M en NaOH. Calcula el pH resultante si le añadimos #vac cm³ de una disolución #mac M en H₂SO₄

]]> 1.0000000 0.3333333 0 0 #phf]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mbas</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>13</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molbas</mi><mo>=</mo><mi>vbas</mi><mo>*</mo><mi>mbas</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi><mo>*</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>molbas</mi><mo>></mo><mi>molac</mi></mrow><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molbas</mi><mo>-</mo><mi>molac</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>molres</mi><mo>=</mo><mi>molac</mi><mo>-</mo><mi>molbas</mi></mtd></mtr><mtr><mtd><mi>phf</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>molres</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vbas</mi><mo>)</mo><mo>)</mo></mtd></mtr></mtable></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>f</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> valoración de ácido fuerte - base fuerte Para averiguar la concentración de una disolución de NaOH tomamos una muestra de #vbas cm³, la disolvemos hasta 150 cm³ y la valoramos con otra de referencia de ácido clorhídrico #mac M, El indicador de fenolftaleina usado vira cuando hemos gastado #vac cm³ de ácido. Calcula la concentración de la disolución original de NaOH

]]> 1.0000000 0.3333333 0 0 #mbas]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>45</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mi>vac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mi>vbas</mi></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>mb</mi><mi>a</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> valoración de ácido fuerte - base fuerte (II) Para averiguar la concentración de una disolución de Ca(OH)₂ tomamos una muestra de #vbas cm³, la disolvemos hasta 150 cm³ y la valoramos con otra de referencia de ácido clorhídrico #mac M, El indicador usado vira cuando hemos gastado #vac cm³ de ácido. Calcula la concentración de la disolución original de Ca(OH)₂

]]> 1.0000000 0.3333333 0 0 #mbas]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vbas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>60</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>45</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>9</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mn>10</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mbas</mi><mo>=</mo><mi>mac</mi><mo>*</mo><mi>vac</mi><mo>*</mo><mn>1</mn><mo>.</mo><mn>0</mn><mo>/</mo><mo>(</mo><mn>2</mn><mo>*</mo><mi>vbas</mi><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>mb</mi><mi>a</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units"><![CDATA[m, s, g, °, ', ", sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, kat]]></param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.02))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/VALORACIONES/FUERTE-DÉBIL ácido acético con hidróxido de sodio A #vac1 cm³ de una disolución #mac M de ácido acético le añadimos #vba1 cm³ de NaOH #mba M. Calcula el pH de la disolución resultante.

Ka(HA) = 1.8· 10^-5

]]> 1.0000000 0.3333333 0 0 #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>vac1</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>vba1</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>vba</mi><mo>*</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo>=</mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>raiz</mi><mo>=</mo><msqrt><mrow><msup><mi>ka</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>ka</mi><mo>*</mo><mi>csal</mi><mo>)</mo></mrow></msqrt></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mo>(</mo><mo>-</mo><mi>ka</mi><mo>+</mo><mi>raiz</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>)</mo></mtd></mtr></mtable><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo>></mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>molb</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>cac</mi><mo>=</mo><mo>(</mo><mi>mola</mi><mo>-</mo><mi>molb</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>ka</mi><mo>*</mo><mi>cac</mi><mo>/</mo><mi>csal</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cba</mi><mo>=</mo><mo>(</mo><mi>molb</mi><mo>-</mo><mi>mola</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>cba</mi><mo>)</mo></mtd></mtr></mtable></apply></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">0.02</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido débil con hidróxido de sodio A #vac1 cm³ de una disolución #mac M de un ácido débil monoprotico le añadimos #vba1 cm³ de NaOH #mba M. Calcula el pH de la disolución resultante.

Ka(HA) = #bas · 10^-#ex1

]]> 1.0000000 0.3333333 0 0 #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>12</mn><mo>,</mo><mn>56</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>bas</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mi>bas</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex1</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>ka</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>vac1</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>vba1</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>1</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>vba</mi><mo>*</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo>=</mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>raiz</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>csal</mi><mo>)</mo></mrow></msqrt></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>raiz</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>)</mo></mtd></mtr></mtable><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo>></mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>molb</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>cac</mi><mo>=</mo><mo>(</mo><mi>mola</mi><mo>-</mo><mi>molb</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>ka</mi><mo>*</mo><mi>cac</mi><mo>/</mo><mi>csal</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cba</mi><mo>=</mo><mo>(</mo><mi>molb</mi><mo>-</mo><mi>mola</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>cba</mi><mo>)</mo></mtd></mtr></mtable></apply></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">0.02</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido nítrico con amoniaco A #vac1 cm³ de una disolución #mac M de ácido nítrico le añadimos #vba1 cm³ de NH₄OH #mba M. Calcula el pH de la disolución resultante.

K_b(NH4OH) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kb</mi><mo>=</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>vac1</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>50</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>01</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>vba1</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>60</mn><mo>)</mo><mo>*</mo><mn>0</mn><mo>.</mo><mn>01</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>vba</mi><mo>*</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>kb</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo>=</mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>raiz</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>csal</mi><mo>)</mo></mrow></msqrt></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>raiz</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>)</mo></mtd></mtr></mtable><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo><</mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>cba</mi><mo>=</mo><mo>(</mo><mi>molb</mi><mo>-</mo><mi>mola</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>kh</mi><mo>*</mo><mi>csal</mi><mo>/</mo><mi>cba</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cac</mi><mo>=</mo><mo>(</mo><mi>mola</mi><mo>-</mo><mi>molb</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>cac</mi><mo>)</mo></mtd></mtr></mtable></apply></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> ácido nítrico con base débil A #vac1 cm³ de una disolución #mac M de ácido nítrico le añadimos #vba1 cm³ de una base débil BOH #mba M. Calcula el pH de la disolución resultante.

K_b(BOH) = #bas·10^-#ex1

]]> 1.0000000 0.3333333 0 0 #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>15</mn><mo>,</mo><mn>65</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>bas</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kb</mi><mo>=</mo><mi>bas</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex1</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>vac1</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>50</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>vba1</mi><mo>/</mo><mn>1000</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>60</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mola</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>vba</mi><mo>*</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo>=</mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>raiz</mi><mo>=</mo><msqrt><mrow><msup><mi>kb</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kb</mi><mo>*</mo><mi>csal</mi><mo>)</mo></mrow></msqrt></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mo>(</mo><mo>-</mo><mi>kb</mi><mo>+</mo><mi>raiz</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>)</mo></mtd></mtr></mtable><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>mola</mi><mo><</mo><mi>molb</mi></mrow><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>mola</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>cba</mi><mo>=</mo><mo>(</mo><mi>molb</mi><mo>-</mo><mi>mola</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>kb</mi><mo>*</mo><mi>cba</mi><mo>/</mo><mi>csal</mi><mo>)</mo></mtd></mtr></mtable><mtable><mtr><mtd><mi>cac</mi><mo>=</mo><mo>(</mo><mi>mola</mi><mo>-</mo><mi>molb</mi><mo>)</mo><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mi>cac</mi><mo>)</mo></mtd></mtr></mtable></apply></apply></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi>p</mi><mi mathvariant="normal">h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> volumen base débil con nítrico Tenemos #vba1 cm³ de una disolución de una base débil BOH #mba M. Calcula el volumen, en cm³, de HNO₃ #mac M que necesitaremos para neutralizarla y el pH de la disolución resultante.

K_b(BOH) = #bas·10^-#ex1

]]> 1.0000000 0.3333333 0 0 volumen =#vacpH = #phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>15</mn><mo>,</mo><mn>65</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>bas</mi><mo>=</mo><mi>bas</mi><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ex1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>6</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kb</mi><mo>=</mo><mi>bas</mi><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mi>ex1</mi></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>50</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba1</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>20</mn><mo>,</mo><mn>80</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>vba1</mi><mo>/</mo><mn>1000</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>6</mn><mo>,</mo><mn>60</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molb</mi><mo>=</mo><mi>vba</mi><mo>*</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mn>1000</mn><mo>.</mo><mn>0</mn><mo>*</mo><mi>molb</mi><mo>/</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>kb</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mtable><mtr><mtd><mi>csal</mi><mo>=</mo><mi>molb</mi><mo>*</mo><mn>1000</mn><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba1</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>raiz1</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>csal</mi><mo>)</mo></mrow></msqrt></mtd></mtr><mtr><mtd><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>raiz1</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>)</mo></mtd></mtr></mtable></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">m</mi><mi mathvariant="normal">e</mi><mi>n</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>v</mi><mi>a</mi><mi>c</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo> </mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">textField</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/><data name="inputCompound">true</data></localData></question> 2º BACHILLERATO/05 EQUILIBRIO ÁCIDO - BASE/VALORACIONES/NEUTRALIZACIONES neutralización ácido débil - base fuerte ¿Qué volumen, en cm³, de disolución acuosa de NaOH #mba M es necesario para neutralizar #vac mL de una disolución #mac M de HNO₂?. Calcule el pH de la disolución resultante.

K_a(HNO₂) = 4.6·10^-4

]]> 1.0000000 0.3333333 0 0 volumen =#vbapH =#phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ka</mi><mo>=</mo><mn>4</mn><mo>.</mo><mn>6</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>4</mn></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>8</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>25</mn><mo>,</mo><mn>100</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>molac</mi><mo>/</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>msal</mi><mo>=</mo><mi>molac</mi><mo>/</mo><mo>(</mo><mi>vac</mi><mo>+</mo><mi>vba</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>ka</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ra</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>msal</mi><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>coh</mi><mo>=</mo><mo>(</mo><mo>-</mo><mi>kh</mi><mo>+</mo><mi>ra</mi><mo>)</mo><mo>/</mo><mn>2</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mn>14</mn><mo>+</mo><mi>log</mi><mo>(</mo><mi>coh</mi><mo>)</mo></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">m</mi><mi mathvariant="normal">e</mi><mi>n</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>v</mi><mi>b</mi><mi>a</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(--log(0.03))</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator"></option><option name="imaginary_unit"></option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> neutralización ácido fuerte - base débil ¿Qué volumen, en cm³, de disolución acuosa de NH₄OH #mba M es necesario para neutralizar #vac mL de una disolución #mac M de HNO₃?. Calcule el pH de la disolución resultante.

K_b(NH₄OH) = 1.8·10^-5

]]> 1.0000000 0.3333333 0 0 volumen =#vbapH =#phres]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kb</mi><mo>=</mo><mn>1</mn><mo>.</mo><mn>8</mn><mo>*</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>5</mn></mrow></msup></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mba</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>8</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>25</mn><mo>,</mo><mn>100</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>mac</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>9</mn><mo>)</mo><mo>/</mo><mn>10</mn><mo>.</mo><mn>0</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>molac</mi><mo>=</mo><mi>vac</mi><mo>*</mo><mi>mac</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>vba</mi><mo>=</mo><mi>molac</mi><mo>/</mo><mi>mba</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>kh</mi><mo>=</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>14</mn></mrow></msup><mo>/</mo><mi>kb</mi></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>csal</mi><mo>=</mo><mi>molac</mi><mo>/</mo><mo>(</mo><mi>vba</mi><mo>+</mo><mi>vac</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>raiz1</mi><mo>=</mo><msqrt><mrow><msup><mi>kh</mi><mn>2</mn></msup><mo>+</mo><mo>(</mo><mn>4</mn><mo>*</mo><mi>kh</mi><mo>*</mo><mi>csal</mi><mo>)</mo></mrow></msqrt></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>phres</mi><mo>=</mo><mo>-</mo><mi>log</mi><mo>(</mo><mo>(</mo><mi>raiz1</mi><mo>-</mo><mi>kh</mi><mo>)</mo><mo>/</mo><mn>2</mn><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi mathvariant="normal">m</mi><mi mathvariant="normal">e</mi><mi>n</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>v</mi><mi>b</mi><mi>a</mi><mspace linebreak="newline"/><mi>p</mi><mi>H</mi><mo> </mo><mo>=</mo><mo>#</mo><mi>p</mi><mi>h</mi><mi>r</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">s</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="syntax_quantity"><param name="units">m, s, g, °, ', "</param><param name="decimalseparators">., \,</param><param name="unitprefixes">M, k, c, m</param><param name="groupoperators">(,[,{</param></assertion><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">0.03</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option><option name="answer_parameter">true</option></options><localData><data name="inputField">textField</data><data name="inputCompound">true</data><data name="gradeCompound">distribute</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question> neutralización ácido fuerte - base fuerte ¿Qué volumen, en cm³, de disolución acuosa de NaOH #mba M es necesario para neutralizar #vac mL de una disolución #mac M de HNO₃?. Calcule el pH de la disolución resultante