You visited us 1 times! Enjoying our articles? Unlock Full Access!

Introduction and Degree of Hydrolysis

For a ammoniu...

Question

For a ammonium chloride solution in water, the given equilibrium reaction occur:
$N H_{4}^{+} (a q) + H_{2} O (l) h y d r o l y s i s ⇌ N H_{4} O H (a q) + H^{+} (a q)$
Which of the following describes correct relation ?

K_{h} = \frac{K_{w}}{K_{b}}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

K_{h} = K_{w} \times K_{b}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

K_{h} = \frac{K_{b}}{K_{w}}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $K_{h} = \frac{K_{w}}{K_{b}}$
$N H_{4}^{+} (a q) + H_{2} O (l) ⇌ N H_{4} O H (a q) + H^{+} (a q)$

$C 00$ $C - C h C h C h$

In this reaction the $(K_{h})$ hydrolysis constant is:

$K_{h} = \frac{[N H_{4} O H] [H^{+}]}{[N H_{4}^{+}]} = \frac{(C h)^{2}}{C (1 - h)}$

$N H_{4} O H (a q) ⇌ N H_{4}^{+} (a q) + O H^{-} (a q)$

In this reaction the $K_{b}$ constant is:

$K_{b} = \frac{[N H_{4}^{+}] [O H^{-}]}{[N H_{4} O H]}$

$H_{2} O (l) ⇌ H^{+} (a q) + O H^{-} (a q)$

In this reaction the $K_{w}$ constant is:

$K_{w} = [H^{+}] [O H^{-}]$

Using he value of $K_{b} a n d K_{w}$ we can derive the value of $K_{h}$

$∴$ $\frac{K_{w}}{K_{b}} = \frac{[H^{+}] [O H^{-}]}{\frac{[N H_{4}] [O H^{-}]}{[N H_{4} O H]}}$

$\frac{K_{w}}{K_{b}} = \frac{[N H_{4} O H] [H^{+}]}{N H_{4}^{+}}$

$K_{h} = \frac{K_{w}}{K_{b}}$

Suggest Corrections

Similar questions

Q. For sodium acetate solution in water, the given equilibrium reaction occur:

C H_{3} C O O^{-} (a q) + H_{2} O (l) h y d r o l y s i s ⇌ C H_{3} C O O H (a q) + O H^{-} (a q)

Which of the following describes the correct relation ?
(where

h

is the degree of hydrolysis of salt)

Q. For a ammonium chloride solution in water, the given equilibrium reaction occur:

N H_{4}^{+} (a q) + H_{2} O (l) h y d r o l y s i s ⇌ N H_{4} O H (a q) + H^{+} (a q)

Which of the following describes correct relation ?

Q. For sodium acetate solution in water, the given equilibrium reaction occur:

C H_{3} C O O^{-} (a q) + H_{2} O (l) h y d r o l y s i s ⇌ C H_{3} C O O H (a q) + O H^{-} (a q)

Which of the following describes the correct relation ?
(where

h

is the degree of hydrolysis of salt)

Q. Consider the solubility of

A g C N

in water. If

x

is amount of

C N^{-}

that gets hydrolysed by water and

s

is the solubility of

A g C N

when two equilibriums are coexisting :

A g C N (s)_{s p} A g^{+} (a q) + C N^{-} (a q)

C N^{-} (a q) + H_{2} O (l)_{h} H C N (a q) + O H^{-} (a q)

Which of the following relation is correct?

Which of the following expressions is correct for the rate of reaction given below? $5 B - r (a q) + B r 0_{3}^{-} (a q) + 6 H^{+} (a q) \to 3 B r_{2} (a q) + 3 H_{2} O (l)$

$(a) \frac{Δ [B r^{-}]}{Δ t} = 5 \frac{Δ [H^{+}]}{Δ t} (b) \frac{Δ [B r^{-}]}{Δ t} = \frac{6}{5} \frac{Δ [H^{+}]}{Δ t} (c) \frac{Δ [B r^{-}]}{Δ t} = \frac{5}{6} \frac{Δ [H^{+}]}{Δ t} (d) \frac{Δ [B r^{-}]}{Δ t} = 6 \frac{Δ [H^{+}]}{Δ t}$

Join BYJU'S Learning Program

Explore more

Introduction and Degree of Hydrolysis

Standard XII Chemistry

Join BYJU'S Learning Program

For a ammonium chloride solution in water, the given equilibrium reaction occur: NH+4 (aq)+H2O (l)hydrolysis⇌NH4OH (aq)+H+ (aq) Which of the following describes correct relation ?

For a ammonium chloride solution in water, the given equilibrium reaction occur:
$N H_{4}^{+} (a q) + H_{2} O (l) h y d r o l y s i s ⇌ N H_{4} O H (a q) + H^{+} (a q)$
Which of the following describes correct relation ?