Write characteristic and uses of weak base equilibrium constant ${K_b}$.
If $pK_a =\, -\,log K_a=4$ for a weak acid $HX$ and $K_a= C\alpha ^2$ then Van't Haff factor when $C = 0.01\,M$ is
$5.0$ $pH$ containing solution is dilute $100$ times. Calculate $pH$ of dilute solution.
Explain a general step-wise approach to evaluate the $pH$ of the weak electrolyte.
The hydrogen ion concentration of $0.1\,N$ solution of $C{H_3}COOH,$ which is $30\%$ dissociated, is