If the pK_a value of CH_3COOH is 4.74,then th | vedclass

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

Question

(C) $CH_3COONa$ is a salt of a weak acid and a strong base.The formula for the $pH$ of a salt of a weak acid and strong base is:$pH = 7 + \frac{1}{2}p

Vedclass · Accepted Answer

$8.87$

Vedclass · Answer

(C) $CH_3COONa$ is a salt of a weak acid and a strong base.The formula for the $pH$ of a salt of a weak acid and strong base is:$pH = 7 + \frac{1}{2}pK_a + \frac{1}{2}\log C$Given $pK_a = 4.74$ and $C = 0.1 \ M = 10^{-1} \ M$.Substituting the values:$pH = 7 + \frac{1}{2}(4.74) + \frac{1}{2}\log(10^{-1})$$pH = 7 + 2.37 + \frac{1}{2}(-1)$$pH = 7 + 2.37 - 0.5$$pH = 8.87$

If the $pK_a$ value of $CH_3COOH$ is $4.74$,then the $pH$ value of $0.1 \ M \ CH_3COONa$ is ......

Similar Questions

The aqueous solution of ferrous sulfate $(FeSO_4)$ is acidic because......

Which of the following aqueous solutions of salts has $pH < 7$ at $298 \text{ K}$?

Which of the following aqueous solutions will have the highest $pH$?

Which of the following cannot be hydrolysed?

The $pK_a$ of a weak acid,benzoic acid and $pK_b$ of a weak base,ammonium hydroxide are $4.25$ and $4.75$ respectively. Then the $pH$ of $0.1 \ M$ solution of ammonium benzoate will be

Vedclass Test Series

Exam Paper Generator

Online Exam Module