$A$ solution of $FeCl_3$ in water acts as acidic due to

At $25\,^oC$,the dissociation constant for acetic acid is $K_a = 1.8 \times 10^{-5}$ and for $NH_4OH$ is $K_b = 1.8 \times 10^{-5}$. Determine the nature of an aqueous solution of ammonium acetate.

Mohr's salt is a

If the $pK_a$ of acetic acid and $pK_b$ of dimethylamine are $4.76$ and $3.26$ respectively,the $pH$ of dimethylammonium acetate solution is

$pH$ of an aqueous solution of $NH_4Cl$ is

$A$ salt is formed from a weak acid and a weak base. If $pK_b > pK_a$,then the $pH$ of the aqueous solution is $.....$