Chapter 6, Problem 6E.2BST

Interpretation Introduction

Interpretation:

The $pHof0.50MK{H}_{2}P{O}_4\left(aq\right)$ has to be calculated.

Concept Introduction:

The $pH$ of a solution of an amphiprotic salt is given below.

  $pH=\frac{1}{2}\left(p{K}_{a1}+p{K}_{a2}\right)\mathrm{......}\left(1\right)$

The above equation is valid if $S\gg K_w/K_{a2}andS\gg K_{a1}$, where, $S$ is the initial concentration of the salt.