The Jacana Technical Library

Air and Gases
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 Densities of Gases
Gas Density (grams/litre)
Air @ STP 1.2928
Air @ 59oF 1.2256
Argon 1.7840
Carbon Dioxide 1.9770
Carbon Monoxide 1.2500
Helium 0.1785
Hydrogen 0.0899
Neon 0.9002
Nitrogen 1.2506
Oxygen 1.4290
All densities listed above assume a dry gas at standard temperature (0oC) and pressure (760 mm Hg) and under those conditions, one mole of any gas will occupy a volume of 22.41 litres = 0.2241 cubic metres = 0.7914 cubic feet

 

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