On combining which of the following anions wi | vedclass

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

Question

(A) The $pH$ of a salt solution formed by a weak base $(NH_4OH)$ and a weak acid $(CH_3COOH)$ is given by the formula: $pH = \frac{1}{2}pK_w + \frac{1

Vedclass · Accepted Answer

$CH_3COO^{\ominus}$

Vedclass · Answer

(A) The $pH$ of a salt solution formed by a weak base $(NH_4OH)$ and a weak acid $(CH_3COOH)$ is given by the formula: $pH = \frac{1}{2}pK_w + \frac{1}{2}pK_a - \frac{1}{2}pK_b$. This formula shows that the $pH$ is independent of the concentration of the salt. For other options like $NH_4Cl$,$NH_4NO_3$,and $(NH_4)_2SO_4$,the salts are formed from a weak base and a strong acid. The $pH$ of such salts is given by $pH = \frac{1}{2}(pK_w - pK_b - \log C)$,which depends on the concentration $C$. Therefore,the correct anion is $CH_3COO^{\ominus}$.

On combining which of the following anions with $NH_4^{\oplus}$ will the $pH$ of the resulting salt solution be independent of the concentration?

Similar Questions

Which of the following salts is $NOT$ derived from a weak acid and a weak base?

The solution of the salt formed from a strong acid and a weak base,$FeCl_3$,is:

Mohr's salt is a

Why is the following anionic hydrolysis correct?
$X^{-} + H_2O \rightleftharpoons HX + OH^{-}$

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

Vedclass Test Series

Exam Paper Generator

Online Exam Module