   Chapter 14, Problem 105E

Chapter
Section
Textbook Problem

# Write out the stepwise Ka reactions for the diprotic acid H2SO3.

Interpretation Introduction

Interpretation: The stepwise Ka reactions for the diprotic acid H2SO3 are to be stated.

Concept introduction: An acid that is capable of donating two H+ 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,

Ka=ConcentrationofproductsConcentrationofreactants

Explanation

Explanation

To determine: The stepwise Ka reactions for the diprotic acid H2SO3 .

The initial reaction is, H2SO3H++HSO3

The initial reaction that occurs is,

H2SO3H++HSO3

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

Ka=ConcentrationofproductsConcentrationofreactants

Where,

• Ka is the acid dissociation constant.

The equilibrium constant expression for the given reaction is,

Ka=[HSO3][H+][

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