The $pH$ of a $NaCl$ solution is:

When $CuSO_4$ is hydrated,it becomes:

Identify from the following salts an example of a salt of a strong acid and a weak base.

Which of the following solutions has the maximum $pH$ value?

Which of the following relations is correct for a solution of $CH_3COONH_4$ salt? Concentration $0.001 \ M$,degree of hydrolysis $x_1$; Concentration $0.002 \ M$,degree of hydrolysis $x_2$.

The $pK_a$ of a weak acid $(HA)$ and $pK_b$ of a weak base $(BOH)$ are $3.2$ and $3.4,$ respectively. The $pH$ of their salt $(AB)$ solution is