Chapter 15, Problem 25CR

Interpretation Introduction

Interpretation:

The mass percent and molarity of $\text{NaCl}$ is to be calculated.

Concept Introduction:

There are many ways to determine the concentration of the solution. One of the most used methods is molarity. Molarity may be defined as the number of moles of the solute in one liter of the whole solution. Thus, the molarity can be calculated as,

$\text{M}=\frac{\text{moles}\text{of}\text{solute}\left(\text{mole}\right)}{\text{total}\text{volume}\text{of}\text{solution}\left(\text{L}\right)}$

The mass percent of a solution can be calculated using formula,

$\text{Mass}\text{percent}=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100\text{\%}$.