Air is 78.1% nitrogen, 20.9% oxygen, and 0.934% argon by moles. What is the density of air at 22 °C and 760 torr? Assume ideal behavior.

Answer 1

0.781 x molar mass N2 = ?
0.209 x molar mass O2 = ?
0.934 x molar mass Ar = ?
(sum/22.4L) = density in g/L