Chapter 13, Problem 103E

Interpretation Introduction

Interpretation:

The boiling point of water solution at each of the given concentration is to be calculated.

Concept Introduction:

The temperature at which vapor pressure of the liquid becomes equal to the atmospheric pressure is known as the boiling point.

The boiling point elevation is as follows:

$\Delta T_{\text{b}}=m\times K_{\text{b}}$ Color change…… (1)

Here, $\Delta T_{\text{b}}$ is the change in temperature of the boiling point in $°\text{C}$, $m$ is the molality

Of the solution in $\frac{\text{mol solute}}{\text{kg solvent}}$ and $K_{\text{b}}$ is the boiling point elevation constant for the solvent.

For water:

$K_{\text{b}}=0.512\frac{°\text{C kg solvent}}{\text{mol solute}}$