Chapter 17, Problem 47E

Interpretation Introduction

Interpretation: The molar mass of the solute needs to be determined.

Concept introduction: Raoult’s law is given as,

  $\frac{p^0-p}{p^0}\text{=}\frac{{\text{w}}_{\text{2}}{\text{×M}}_{\text{1}}}{{\text{M}}_{\text{2}}\text{×}{\text{w}}_{\text{1}}}$

Where ${\text{M}}_{\text{1}}$ and ${\text{M}}_{\text{2}}$ are molar masses of the solvent and solute respectively, ${\text{w}}_{\text{1}}$ and ${\text{w}}_{\text{2}}$ are the given amount of solvent and solute respectively. $p^0$ and $p$ is the vapor pressure of the pure solvent and vapor pressure of the solution respectively.