Chapter 16, Problem 59E

Interpretation Introduction

Interpretation:

The volume of water needed to dissolve $\text{97}\text{.7}\text{mg}$ of sodium chloride for the preparation of a $2.80\times {10}^{-3}\text{m}$ solution is to be calculated.

Concept introduction:

Molality is defined as the measure of concentration of moles of solute in a solution. It is calculated by dividing the no. of moles of solute by the weight of solvent in $\text{Kg}$. It is expressed by the formula shown below.

$\text{Molality}=\frac{\text{Number}\text{of}\text{moles}\text{of}\text{solute}}{\text{Weight}\text{of}\text{solvent}\text{in}\text{Kg}}$