pH of 0.01 M ammonium cyanide solution is 7.02. If 5 litres of water is added to this solution, the pH becomes :

Question

pH of 0.01 M ammonium cyanide solution is 7.02. If 5 litres of water is added to this solution, the pH becomes : (A) > 7.02 (B) < 7.02 (C) It is difficult to predict (D) 7.02

Tardigrade Admin · Accepted Answer

NH 4 CN longrightarrow NH 4++ CN - pH of hydrolysis of salt WA + WB is independent of conc. of salt.

Q. $p H$ of $0.01 M$ ammonium cyanide solution is $7.02$ . If $5$ litres of water is added to this solution, the pH becomes :

> 7.02

< 7.02

It is difficult to predict

7.02

$N H_{4} CN ⟶ N H_{4}^{+} + C N^{-}$
$p H$ of hydrolysis of salt $W A + W B$ is independent of conc. of salt.

Q. pH of 0.01M ammonium cyanide solution is 7.02. If 5 litres of water is added to this solution, the pH becomes :