Calculate the hydrogen and air density of the following gases: Carbon monoxide (4).

Given:
CO2

To find:
D H2 (CO2) -?
D air. (CO2) -?

1) Calculate the molar mass of CO2:
M (CO2) = Mr (CO2) = Ar (C) * N (C) + Ar (O) * N (O) = 12 * 1 + 16 * 2 = 44 g / mol;
2) Calculate the molar mass of H2:
M (H2) = Mr (H2) = Ar (H) * N (H) = 1 * 2 = 2 g / mol;
3) Calculate the density of CO2 as H2:
D H2 (CO2) = M (CO2) / M (H2) = 44/2 = 22;
4) Molar mass of air – table value:
M (air) = 29 g / mol;
5) Calculate the density of CO2 in air:
D air. (CO2) = M (CO2) / M (air) = 44/29 = 1.52.

Answer: The density of CO2 for hydrogen is 22; by air – 1.52.