What are the solutes and solvent of air?

Air is primarily made up of nitrogen (N2) - 78%, oxygen (O2) - 21%, water vapor (H2O) - less than 1%, carbon dioxide (CO2) - less than 1%, methane (CH4) - less than 1%, hydrogen (H2) - less than 1%, argon (Ar) - less than 1%, and helium (He) - less than 1%. A solvent is defined as the most abundant component of a solution. Therefore, nitrogen (N2) is the solvent and all other components (H2O, CO2, CH4, H2, Ar, and He) are the solutes.

- jlaugh