Chapter 9, Problem 149QP

Interpretation Introduction

Interpretation:

The gas which is most likely to be the unknown gas is to be identified.

Introduction:

The density $\left(\rho \right)$ of a gas is equal to the ratio of mass $\left(m\right)$ of the gas to the volume $\left(V\right)$ of the gas. Under identical conditions, the ratio of density of gases $\left(\rho \right)$ is equal to the ratio of molar mass $\left(M\right)$ of the gases.

$\frac{{\rho }_1}{{\rho }_2}=\frac{M_1}{M_2}$ … (1)