Question

Air is mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases including some dust particles.

Answer 1

The Composition of Air:

Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts. Water vapor is also a constituent of air in varying amounts along with dust particles. The molar mass of dry air or air with no/low quantity of water vapor in it is 28.97g/mol.