Chapter 10, Problem 82QAP

Interpretation Introduction

Interpretation:

Density of an aqueous solution of potassium nitrate is to be determined.

Concept introduction:

The formulas which are used in the calculation of density of an aqueous solution is given below:

Boiling point elevation-

  $\Delta T_b=T_b-T_b°$

Molality formula-

  $\Delta T_b=k_{b}m$

And

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

The number of moles-

  $\text{number of moles of solute=}\frac{\text{mass}}{\text{molar mass}}$