How can the molar volume be used to find the density of a gas?

Sep 3, 2014

You divide the molar mass by the molar volume.

EXAMPLE

The molar volume of N₂ gas is 22.41 L. What is the density of the gas.

Solution

The molar mass of N₂ is 28.01 g/mol.

Density = "mass"/"volume" = (28.01"g")/(22.41"L") = 1.250 g/L