When a solution of NH_4Cl is diluted,its pH . | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) $NH_4Cl$ is a salt of a strong acid $(HCl)$ and a weak base $(NH_4OH)$.The hydrolysis of $NH_4^+$ ion is given by: $NH_4^+ + H_2O \rightleftharpoo

Vedclass · Accepted Answer

increases.

Vedclass · Answer

(B) $NH_4Cl$ is a salt of a strong acid $(HCl)$ and a weak base $(NH_4OH)$.The hydrolysis of $NH_4^+$ ion is given by: $NH_4^+ + H_2O \rightleftharpoons NH_4OH + H^+$.The concentration of $H^+$ ions is given by the formula: $[H^+] = \sqrt{\frac{K_w \cdot K_h}{C}} = \sqrt{\frac{K_w}{K_b} \cdot C}$.As the solution is diluted,the concentration $C$ decreases.Since $[H^+] \propto \sqrt{C}$,the concentration of $H^+$ ions decreases upon dilution.As $[H^+]$ decreases,the $pH$ $(pH = -\log[H^+])$ increases.

When a solution of $NH_4Cl$ is diluted,its $pH$ .....

Similar Questions

An aqueous solution of aluminium sulphate shows

Find out $K_a$ for the acid when the degree of hydrolysis of $0.1 \ M \ CH_3COONa$ is $1 \ \%$.

The compound whose $0.1 \, M$ solution is basic is

In a solution of sodium acetate,the concentration of $CH_3COOH$ is equal to which of the following?

The salt that forms a neutral solution in water is

Vedclass Test Series

Exam Paper Generator

Online Exam Module