Chapter 13, Problem 72E

Interpretation Introduction

Interpretation: The mass of ${\text{Na}}_3{\text{PO}}_4$ in the given sample is to be calculated.

Concept Introduction:

Molarity of a substance is defined as the number of moles of solute dissolved per liter of solution.

The relation between molarity $\left(\text{M}\right)$, volume, anda number of moles of a solution are:

$\text{M}=\frac{\text{moles solute}}{\text{L solution}}$

A number of moles are equal to the ratio of the mass of substance and molecular mass of a substance.

The relation between mass $\left(m\right)$ and molar mass is:

$n=\frac{m}{\text{Molar Mass}}$