Chapter 7, Problem 98E

Interpretation Introduction

Interpretation : The pH of H₂SO₄ solution should be calculated.

Concept Introduction :

H₂SO₄ is a strong acid. The first H+ dissociation occurs completely. But second dissociation of H+ is weak.

  $\begin{array}{l}{\text{H}}_2{\text{SO}}_4\to {\text{ H}}^{+}{\text{ + HSO}}_4^{-}\\ {\text{HSO}}_4^{-}\rightleftharpoons {\text{ H}}^{+}{\text{ + SO}}_4^{2-}\end{array}$

  $K_{a2}=1.2\times {10}^{-2}$