314755 The ionisation constant of nitrous acid is \(4.5 \times\) \(10^{-4}\). The \(\mathrm{pH}\) and degree of hydrolysis of 0.04 \(\mathrm{M}\) sodium nitrite solution are, respectively.

314756 \(\mathrm{pH}\) of a salt solution of weak acid \(\left(\mathrm{pK}_{\mathrm{a}}=4\right)\) and weak base \(\left(\mathrm{pK}_{\mathrm{b}}=5\right)\) at \(25^{\circ}\) is

314757 The \(\mathrm{pH}\) of \({\text{0}}{\text{.1}}\,\,{\text{M}}{\mkern 1mu} \,\,{\text{N}}{{\text{H}}_{\text{4}}}{\text{Cl}}\) solution is 5.13. What will be the dissociation constant of \(\mathrm{NH}_{4} \mathrm{OH}\) ?

314758 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COONa}}\)
P
Almost neutral, pH>7 or <7
B
\({\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
Q
Acidic, pH <7
C
\({\rm{NaN}}{{\rm{O}}_{\rm{3}}}\)
R
Alkaline, pH>7
D
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COON}}{{\rm{H}}_{\rm{4}}}\)
S
Neutral, pH=7

314755 The ionisation constant of nitrous acid is \(4.5 \times\) \(10^{-4}\). The \(\mathrm{pH}\) and degree of hydrolysis of 0.04 \(\mathrm{M}\) sodium nitrite solution are, respectively.

314756 \(\mathrm{pH}\) of a salt solution of weak acid \(\left(\mathrm{pK}_{\mathrm{a}}=4\right)\) and weak base \(\left(\mathrm{pK}_{\mathrm{b}}=5\right)\) at \(25^{\circ}\) is

314757 The \(\mathrm{pH}\) of \({\text{0}}{\text{.1}}\,\,{\text{M}}{\mkern 1mu} \,\,{\text{N}}{{\text{H}}_{\text{4}}}{\text{Cl}}\) solution is 5.13. What will be the dissociation constant of \(\mathrm{NH}_{4} \mathrm{OH}\) ?

314758 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COONa}}\)
P
Almost neutral, pH>7 or <7
B
\({\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
Q
Acidic, pH <7
C
\({\rm{NaN}}{{\rm{O}}_{\rm{3}}}\)
R
Alkaline, pH>7
D
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COON}}{{\rm{H}}_{\rm{4}}}\)
S
Neutral, pH=7

314755 The ionisation constant of nitrous acid is \(4.5 \times\) \(10^{-4}\). The \(\mathrm{pH}\) and degree of hydrolysis of 0.04 \(\mathrm{M}\) sodium nitrite solution are, respectively.

314756 \(\mathrm{pH}\) of a salt solution of weak acid \(\left(\mathrm{pK}_{\mathrm{a}}=4\right)\) and weak base \(\left(\mathrm{pK}_{\mathrm{b}}=5\right)\) at \(25^{\circ}\) is

314757 The \(\mathrm{pH}\) of \({\text{0}}{\text{.1}}\,\,{\text{M}}{\mkern 1mu} \,\,{\text{N}}{{\text{H}}_{\text{4}}}{\text{Cl}}\) solution is 5.13. What will be the dissociation constant of \(\mathrm{NH}_{4} \mathrm{OH}\) ?

314758 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COONa}}\)
P
Almost neutral, pH>7 or <7
B
\({\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
Q
Acidic, pH <7
C
\({\rm{NaN}}{{\rm{O}}_{\rm{3}}}\)
R
Alkaline, pH>7
D
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COON}}{{\rm{H}}_{\rm{4}}}\)
S
Neutral, pH=7

314755 The ionisation constant of nitrous acid is \(4.5 \times\) \(10^{-4}\). The \(\mathrm{pH}\) and degree of hydrolysis of 0.04 \(\mathrm{M}\) sodium nitrite solution are, respectively.

314756 \(\mathrm{pH}\) of a salt solution of weak acid \(\left(\mathrm{pK}_{\mathrm{a}}=4\right)\) and weak base \(\left(\mathrm{pK}_{\mathrm{b}}=5\right)\) at \(25^{\circ}\) is

314757 The \(\mathrm{pH}\) of \({\text{0}}{\text{.1}}\,\,{\text{M}}{\mkern 1mu} \,\,{\text{N}}{{\text{H}}_{\text{4}}}{\text{Cl}}\) solution is 5.13. What will be the dissociation constant of \(\mathrm{NH}_{4} \mathrm{OH}\) ?

314758 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COONa}}\)
P
Almost neutral, pH>7 or <7
B
\({\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{Cl}}\)
Q
Acidic, pH <7
C
\({\rm{NaN}}{{\rm{O}}_{\rm{3}}}\)
R
Alkaline, pH>7
D
\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COON}}{{\rm{H}}_{\rm{4}}}\)
S
Neutral, pH=7