Chapter 13.2, Problem 1PPC

Interpretation Introduction

Interpretation:

The relationship between percent composition by mass and molarity of solute is to be explained.

Concept Introduction:

The molality of a substance is expressed as follows:

$\text{molality}=\frac{\text{mass of solute}}{\text{mass of solvent}}.$

The percent composition by mass is expressed as follows:

$\text{percent by mass}=\frac{\text{mass of solute}}{\text{mass of solute}+\text{mass of solvent}}\times 100\%.$