Ionization constants for CH_3COOH and HCN are | vedclass

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(C) The degree of hydrolysis $(h)$ for a salt of a weak acid and a strong base is given by the formula $h = \sqrt{\frac{K_w}{K_a 	imes C}}$.Since $K_

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$h_1 > h_2$

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(C) The degree of hydrolysis $(h)$ for a salt of a weak acid and a strong base is given by the formula $h = \sqrt{\frac{K_w}{K_a 	imes C}}$.Since $K_w$ and $C$ $(0.1 \ M)$ are constant for both salts,$h \propto \frac{1}{\sqrt{K_a}}$.For $CH_3COOK$,the acid is $CH_3COOH$ with $K_a = 1.8 	imes 10^{-5}$.For $KCN$,the acid is $HCN$ with $K_a = 7.2 	imes 10^{-10}$.Since $K_a(CH_3COOH) > K_a(HCN)$,it follows that $h_2  h_2$.

Ionization constants for $CH_3COOH$ and $HCN$ are respectively $1.8 \times 10^{-5}$ and $7.2 \times 10^{-10}$. The degree of hydrolysis of $0.1 \ M \ KCN$ $(h_1)$ and $0.1 \ M \ CH_3COOK$ $(h_2)$ follows the order :

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