Hydrolysis of Salts
CHXI07:EQUILIBRIUM

314733 The dissociation constants of aniline, acetic acid and water at \(25^{\circ} \mathrm{C}\) are respectively, \(3.83 \times 10^{-10}\), \(1.75 \times 10^{-15}\) and \(1.008 \times 10^{-14}\). What is the percentage hydrolysis of aniline acetate in a decimolar solution?

1 50
2 55
3 60
4 12
CHXI07:EQUILIBRIUM

314734 What will be the \(\mathrm{pH}\) of an aqueous solution of 1.0 \(\mathrm{M}\) ammonium formate \(\left(\mathrm{HCOONH}_{4}\right)\) ?
(Given : \(\mathrm{pK}_{\mathrm{a}}=3.8\) and \(\mathrm{pK}_{\mathrm{b}}=4.8\) )

1 7.5
2 3.4
3 6.5
4 10.2
CHXI07:EQUILIBRIUM

314735 The \(\mathrm{pH}\) of aqueous solution of \({\text{N}}{{\text{H}}_{\text{4}}}{\text{CN}}\)
\({{\text{K}}_{\text{a}}}\,\,{\text{of}}\,\,{\text{HCN is 9}}{\text{.2 }} \times {\text{ 1}}{{\text{0}}^{{\text{ -10}}}}\)
\({{\text{K}}_{\text{b}}}{\text{ of N}}{{\text{H}}_{\text{4}}}{\text{OH is 1}}{\text{.8}} \times {\text{1}}{{\text{0}}^{{\text{ -5}}}}\) is

1 \(>7\)
2 \( < 7\)
3 7
4 14
CHXI07:EQUILIBRIUM

314736 The extent of hydrolysis of \({\text{0}}{\text{.0050 M}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{K}}_{\text{2}}}{\text{Cr}}{{\text{O}}_{\text{4}}}\) is (The ionisation constants of \(\mathrm{H}_{2} \mathrm{CrO}_{4}\) are \({\text{K}}{{\text{a}}_{\text{1}}}{\text{ = 1}}{\text{.6, K}}{{\text{a}}_{\text{2}}}{\text{ = 3}}{\text{.1 }} \times {\text{ 1}}{{\text{0}}^{{\text{ - 7}}}}{\text{)}}\)

1 \(0.5 \%\)
2 \(0.026 \%\)
3 \(0.26 \%\)
4 \(0.15 \%\)
CHXI07:EQUILIBRIUM

314733 The dissociation constants of aniline, acetic acid and water at \(25^{\circ} \mathrm{C}\) are respectively, \(3.83 \times 10^{-10}\), \(1.75 \times 10^{-15}\) and \(1.008 \times 10^{-14}\). What is the percentage hydrolysis of aniline acetate in a decimolar solution?

1 50
2 55
3 60
4 12
CHXI07:EQUILIBRIUM

314734 What will be the \(\mathrm{pH}\) of an aqueous solution of 1.0 \(\mathrm{M}\) ammonium formate \(\left(\mathrm{HCOONH}_{4}\right)\) ?
(Given : \(\mathrm{pK}_{\mathrm{a}}=3.8\) and \(\mathrm{pK}_{\mathrm{b}}=4.8\) )

1 7.5
2 3.4
3 6.5
4 10.2
CHXI07:EQUILIBRIUM

314735 The \(\mathrm{pH}\) of aqueous solution of \({\text{N}}{{\text{H}}_{\text{4}}}{\text{CN}}\)
\({{\text{K}}_{\text{a}}}\,\,{\text{of}}\,\,{\text{HCN is 9}}{\text{.2 }} \times {\text{ 1}}{{\text{0}}^{{\text{ -10}}}}\)
\({{\text{K}}_{\text{b}}}{\text{ of N}}{{\text{H}}_{\text{4}}}{\text{OH is 1}}{\text{.8}} \times {\text{1}}{{\text{0}}^{{\text{ -5}}}}\) is

1 \(>7\)
2 \( < 7\)
3 7
4 14
CHXI07:EQUILIBRIUM

314736 The extent of hydrolysis of \({\text{0}}{\text{.0050 M}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{K}}_{\text{2}}}{\text{Cr}}{{\text{O}}_{\text{4}}}\) is (The ionisation constants of \(\mathrm{H}_{2} \mathrm{CrO}_{4}\) are \({\text{K}}{{\text{a}}_{\text{1}}}{\text{ = 1}}{\text{.6, K}}{{\text{a}}_{\text{2}}}{\text{ = 3}}{\text{.1 }} \times {\text{ 1}}{{\text{0}}^{{\text{ - 7}}}}{\text{)}}\)

1 \(0.5 \%\)
2 \(0.026 \%\)
3 \(0.26 \%\)
4 \(0.15 \%\)
CHXI07:EQUILIBRIUM

314733 The dissociation constants of aniline, acetic acid and water at \(25^{\circ} \mathrm{C}\) are respectively, \(3.83 \times 10^{-10}\), \(1.75 \times 10^{-15}\) and \(1.008 \times 10^{-14}\). What is the percentage hydrolysis of aniline acetate in a decimolar solution?

1 50
2 55
3 60
4 12
CHXI07:EQUILIBRIUM

314734 What will be the \(\mathrm{pH}\) of an aqueous solution of 1.0 \(\mathrm{M}\) ammonium formate \(\left(\mathrm{HCOONH}_{4}\right)\) ?
(Given : \(\mathrm{pK}_{\mathrm{a}}=3.8\) and \(\mathrm{pK}_{\mathrm{b}}=4.8\) )

1 7.5
2 3.4
3 6.5
4 10.2
CHXI07:EQUILIBRIUM

314735 The \(\mathrm{pH}\) of aqueous solution of \({\text{N}}{{\text{H}}_{\text{4}}}{\text{CN}}\)
\({{\text{K}}_{\text{a}}}\,\,{\text{of}}\,\,{\text{HCN is 9}}{\text{.2 }} \times {\text{ 1}}{{\text{0}}^{{\text{ -10}}}}\)
\({{\text{K}}_{\text{b}}}{\text{ of N}}{{\text{H}}_{\text{4}}}{\text{OH is 1}}{\text{.8}} \times {\text{1}}{{\text{0}}^{{\text{ -5}}}}\) is

1 \(>7\)
2 \( < 7\)
3 7
4 14
CHXI07:EQUILIBRIUM

314736 The extent of hydrolysis of \({\text{0}}{\text{.0050 M}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{K}}_{\text{2}}}{\text{Cr}}{{\text{O}}_{\text{4}}}\) is (The ionisation constants of \(\mathrm{H}_{2} \mathrm{CrO}_{4}\) are \({\text{K}}{{\text{a}}_{\text{1}}}{\text{ = 1}}{\text{.6, K}}{{\text{a}}_{\text{2}}}{\text{ = 3}}{\text{.1 }} \times {\text{ 1}}{{\text{0}}^{{\text{ - 7}}}}{\text{)}}\)

1 \(0.5 \%\)
2 \(0.026 \%\)
3 \(0.26 \%\)
4 \(0.15 \%\)
CHXI07:EQUILIBRIUM

314733 The dissociation constants of aniline, acetic acid and water at \(25^{\circ} \mathrm{C}\) are respectively, \(3.83 \times 10^{-10}\), \(1.75 \times 10^{-15}\) and \(1.008 \times 10^{-14}\). What is the percentage hydrolysis of aniline acetate in a decimolar solution?

1 50
2 55
3 60
4 12
CHXI07:EQUILIBRIUM

314734 What will be the \(\mathrm{pH}\) of an aqueous solution of 1.0 \(\mathrm{M}\) ammonium formate \(\left(\mathrm{HCOONH}_{4}\right)\) ?
(Given : \(\mathrm{pK}_{\mathrm{a}}=3.8\) and \(\mathrm{pK}_{\mathrm{b}}=4.8\) )

1 7.5
2 3.4
3 6.5
4 10.2
CHXI07:EQUILIBRIUM

314735 The \(\mathrm{pH}\) of aqueous solution of \({\text{N}}{{\text{H}}_{\text{4}}}{\text{CN}}\)
\({{\text{K}}_{\text{a}}}\,\,{\text{of}}\,\,{\text{HCN is 9}}{\text{.2 }} \times {\text{ 1}}{{\text{0}}^{{\text{ -10}}}}\)
\({{\text{K}}_{\text{b}}}{\text{ of N}}{{\text{H}}_{\text{4}}}{\text{OH is 1}}{\text{.8}} \times {\text{1}}{{\text{0}}^{{\text{ -5}}}}\) is

1 \(>7\)
2 \( < 7\)
3 7
4 14
CHXI07:EQUILIBRIUM

314736 The extent of hydrolysis of \({\text{0}}{\text{.0050 M}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{K}}_{\text{2}}}{\text{Cr}}{{\text{O}}_{\text{4}}}\) is (The ionisation constants of \(\mathrm{H}_{2} \mathrm{CrO}_{4}\) are \({\text{K}}{{\text{a}}_{\text{1}}}{\text{ = 1}}{\text{.6, K}}{{\text{a}}_{\text{2}}}{\text{ = 3}}{\text{.1 }} \times {\text{ 1}}{{\text{0}}^{{\text{ - 7}}}}{\text{)}}\)

1 \(0.5 \%\)
2 \(0.026 \%\)
3 \(0.26 \%\)
4 \(0.15 \%\)