Chapter 9, Problem 141QP

Interpretation Introduction

Interpretation:

The molar mass of the liquid collected in vapor phase is to be determined.

Concept Introduction:

Ideal gas law is the law followed by ideal gases. It states that pressure $\left(P\right)$ and volume $\left(V\right)$ of the gas is directly proportional to the number of moles $\left(n\right)$ present in the gas and the temperature $\left(T\right)$ of the gas.

$\begin{array}{l}PV\propto nT\\ PV=nRT\end{array}$ … (1)

Where, $R$ is universal gas constant.

The number of moles of a gas $\left(n\right)$ is equal to the ratio of amount of gas $\left(m\right)$ present in the container to the molar mass $\left(M\right)$ of that gas.

$n=\frac{m}{M}$ … (2)