Chapter 16, Problem 70E

Interpretation Introduction

(a)

Interpretation:

The equivalent mass of ${\text{H}}_{\text{3}}{\text{PO}}_{\text{4}}$ is to be calculated.

Concept introduction:

Normality is defined as the number of equivalents of solute per unit volume of the solution. Equivalent mass is the mass of the compound per equivalent. One equivalent of any substance means it would react with or supply 1 mole of electron or protons in a reaction.

Interpretation Introduction

(b)

Interpretation:

The number of equivalents in $\text{38}\text{.4}\text{g}$ of ${\text{H}}_{\text{3}}{\text{PO}}_{\text{4}}$ is to be stated.

Concept introduction:

Normality is defined as the number of equivalents of solute per unit volume of the solution. Equivalent mass is the mass of the compound per equivalent. One equivalent of any substance means it would react with or supply 1 mole of electron or protons in a reaction.