The degree of hydrolysis of which salt is independent of the concentration of the salt solution?

The $pH$ of an aqueous solution of $CH_3COONH_4$ is found to be $6.7$ at $25\,^{\circ}C$. The concentration of the $CH_3COONH_4$ solution is ($K_a$ for $CH_3COOH = 1.0 \times 10^{-5}$ and $pK_b$ for $NH_4OH = 4.4$)

Which of the following salts on dissolution in water gives $pH$ less than $7$ at $298 \ K$?

When $1 \ mol$ of aniline hydrochloride is dissolved in $99.2 \ L$ of water,the degree of hydrolysis is $4.88 \%$. Calculate the hydrolysis constant $(K_h)$.

$pK_a$ of acetic acid is $4.74$. The concentration of $CH_3COONa$ is $0.01 \ M$. The $pH$ of $CH_3COONa$ is

The addition of solid sodium carbonate $(Na_2CO_3)$ to pure water causes: