Buffer Solutions
CHXI07:EQUILIBRIUM

314518 The \(\mathrm{pH}\) of solution containing \(0.05\,\,{\text{M}}\) acetic acid with \(0.1\,\,{\text{M}}\) sodium acetate is

1 \({\text{pH = p}}{{\text{K}}_{\text{a}}}{\text{ + log2}}\)
2 \(\mathrm{pH}=\mathrm{pOH}+\log 2\)
3 \(\mathrm{pH}=\mathrm{pK}_{\mathrm{a}}+\log 10\)
4 \(\mathrm{pH}=\mathrm{pH}+\log 5\)
CHXI07:EQUILIBRIUM

314519 The \(\mathrm{pH}\) of the solution containing \(50 \mathrm{~mL}\) each of \(0.10\,\,\,{\text{M}}\) sodium acetate and \(0.01\,\,\,{\text{M}}\) acetic acid is [Given, \(\mathrm{pK}_{\mathrm{a}}\) of \({\text{C}}{{\text{H}}_3}{\text{COOH}} = 4.57]\)

1 3.57
2 4.57
3 2.57
4 5.57
CHXI07:EQUILIBRIUM

314520 Statement A :
A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of \(\mathrm{pH}\) on additon of small amount of acid or alkali.
Statement B :
A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution of around \(\mathrm{pH}=4.75\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314521 What would be the \(\mathrm{pH}\) of a solution obtained by mixing \(5 \mathrm{~g}\) of acetic acid and \(7.5 \mathrm{~g}\) of sodium acetate and making the volume equal to \(500 \mathrm{~mL}\) ?
\(\left( {{{\rm{K}}_{\rm{a}}}{\rm{ = 1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{ - 5}}}}{\rm{,p}}{{\rm{K}}_{\rm{a}}}{\rm{ = 4}}{\rm{.76}}} \right)\)

1 \({\rm{pH = 4}}{\rm{.70}}\)
2 \({\rm{pH < 4}}{\rm{.70}}\)
3 \(\mathrm{pH}\) of solution will be equal to \(\mathrm{pH}\) of acetic acid
4 \({\text{4}}{\text{.499}}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI07:EQUILIBRIUM

314518 The \(\mathrm{pH}\) of solution containing \(0.05\,\,{\text{M}}\) acetic acid with \(0.1\,\,{\text{M}}\) sodium acetate is

1 \({\text{pH = p}}{{\text{K}}_{\text{a}}}{\text{ + log2}}\)
2 \(\mathrm{pH}=\mathrm{pOH}+\log 2\)
3 \(\mathrm{pH}=\mathrm{pK}_{\mathrm{a}}+\log 10\)
4 \(\mathrm{pH}=\mathrm{pH}+\log 5\)
CHXI07:EQUILIBRIUM

314519 The \(\mathrm{pH}\) of the solution containing \(50 \mathrm{~mL}\) each of \(0.10\,\,\,{\text{M}}\) sodium acetate and \(0.01\,\,\,{\text{M}}\) acetic acid is [Given, \(\mathrm{pK}_{\mathrm{a}}\) of \({\text{C}}{{\text{H}}_3}{\text{COOH}} = 4.57]\)

1 3.57
2 4.57
3 2.57
4 5.57
CHXI07:EQUILIBRIUM

314520 Statement A :
A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of \(\mathrm{pH}\) on additon of small amount of acid or alkali.
Statement B :
A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution of around \(\mathrm{pH}=4.75\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314521 What would be the \(\mathrm{pH}\) of a solution obtained by mixing \(5 \mathrm{~g}\) of acetic acid and \(7.5 \mathrm{~g}\) of sodium acetate and making the volume equal to \(500 \mathrm{~mL}\) ?
\(\left( {{{\rm{K}}_{\rm{a}}}{\rm{ = 1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{ - 5}}}}{\rm{,p}}{{\rm{K}}_{\rm{a}}}{\rm{ = 4}}{\rm{.76}}} \right)\)

1 \({\rm{pH = 4}}{\rm{.70}}\)
2 \({\rm{pH < 4}}{\rm{.70}}\)
3 \(\mathrm{pH}\) of solution will be equal to \(\mathrm{pH}\) of acetic acid
4 \({\text{4}}{\text{.499}}\)
CHXI07:EQUILIBRIUM

314518 The \(\mathrm{pH}\) of solution containing \(0.05\,\,{\text{M}}\) acetic acid with \(0.1\,\,{\text{M}}\) sodium acetate is

1 \({\text{pH = p}}{{\text{K}}_{\text{a}}}{\text{ + log2}}\)
2 \(\mathrm{pH}=\mathrm{pOH}+\log 2\)
3 \(\mathrm{pH}=\mathrm{pK}_{\mathrm{a}}+\log 10\)
4 \(\mathrm{pH}=\mathrm{pH}+\log 5\)
CHXI07:EQUILIBRIUM

314519 The \(\mathrm{pH}\) of the solution containing \(50 \mathrm{~mL}\) each of \(0.10\,\,\,{\text{M}}\) sodium acetate and \(0.01\,\,\,{\text{M}}\) acetic acid is [Given, \(\mathrm{pK}_{\mathrm{a}}\) of \({\text{C}}{{\text{H}}_3}{\text{COOH}} = 4.57]\)

1 3.57
2 4.57
3 2.57
4 5.57
CHXI07:EQUILIBRIUM

314520 Statement A :
A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of \(\mathrm{pH}\) on additon of small amount of acid or alkali.
Statement B :
A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution of around \(\mathrm{pH}=4.75\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314521 What would be the \(\mathrm{pH}\) of a solution obtained by mixing \(5 \mathrm{~g}\) of acetic acid and \(7.5 \mathrm{~g}\) of sodium acetate and making the volume equal to \(500 \mathrm{~mL}\) ?
\(\left( {{{\rm{K}}_{\rm{a}}}{\rm{ = 1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{ - 5}}}}{\rm{,p}}{{\rm{K}}_{\rm{a}}}{\rm{ = 4}}{\rm{.76}}} \right)\)

1 \({\rm{pH = 4}}{\rm{.70}}\)
2 \({\rm{pH < 4}}{\rm{.70}}\)
3 \(\mathrm{pH}\) of solution will be equal to \(\mathrm{pH}\) of acetic acid
4 \({\text{4}}{\text{.499}}\)
CHXI07:EQUILIBRIUM

314518 The \(\mathrm{pH}\) of solution containing \(0.05\,\,{\text{M}}\) acetic acid with \(0.1\,\,{\text{M}}\) sodium acetate is

1 \({\text{pH = p}}{{\text{K}}_{\text{a}}}{\text{ + log2}}\)
2 \(\mathrm{pH}=\mathrm{pOH}+\log 2\)
3 \(\mathrm{pH}=\mathrm{pK}_{\mathrm{a}}+\log 10\)
4 \(\mathrm{pH}=\mathrm{pH}+\log 5\)
CHXI07:EQUILIBRIUM

314519 The \(\mathrm{pH}\) of the solution containing \(50 \mathrm{~mL}\) each of \(0.10\,\,\,{\text{M}}\) sodium acetate and \(0.01\,\,\,{\text{M}}\) acetic acid is [Given, \(\mathrm{pK}_{\mathrm{a}}\) of \({\text{C}}{{\text{H}}_3}{\text{COOH}} = 4.57]\)

1 3.57
2 4.57
3 2.57
4 5.57
CHXI07:EQUILIBRIUM

314520 Statement A :
A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of \(\mathrm{pH}\) on additon of small amount of acid or alkali.
Statement B :
A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution of around \(\mathrm{pH}=4.75\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI07:EQUILIBRIUM

314521 What would be the \(\mathrm{pH}\) of a solution obtained by mixing \(5 \mathrm{~g}\) of acetic acid and \(7.5 \mathrm{~g}\) of sodium acetate and making the volume equal to \(500 \mathrm{~mL}\) ?
\(\left( {{{\rm{K}}_{\rm{a}}}{\rm{ = 1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{ - 5}}}}{\rm{,p}}{{\rm{K}}_{\rm{a}}}{\rm{ = 4}}{\rm{.76}}} \right)\)

1 \({\rm{pH = 4}}{\rm{.70}}\)
2 \({\rm{pH < 4}}{\rm{.70}}\)
3 \(\mathrm{pH}\) of solution will be equal to \(\mathrm{pH}\) of acetic acid
4 \({\text{4}}{\text{.499}}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here