Chapter 13, Problem 105E

Interpretation Introduction

Interpretation: The stepwise $K_{\text{a}}$ reactions for the diprotic acid ${\text{H}}_{\text{2}}{\text{SO}}_{\text{3}}$ are to be stated.

Concept introduction: An acid that is capable of donating two ${\text{H}}^{\text{+}}$ ions per molecule on undergoing dissociation in an aqueous solution is known as a diprotic acid.

At equilibrium, the equilibrium constant expression is expressed by the formula,

$K_{\text{a}}=\frac{\text{Concentration}\text{of}\text{products}}{\text{Concentration}\text{of}\text{reactants}}$