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Density of some gases

Gas Formula Mr
[g/mol]		 ρ0 [g/dm3]

(0°C,po)

 d (Air=1) V0 [dm3/mol]
Air (dry)  n.a. 28,96 1,2928 1,000 22,40
Helium He 4,00260 0,1785 0,1381 22,42
Neon Ne 20.179 0,8999 0.6961 22,42
Argon Ar 39,948 1,7839 1.3799 22,39
Krypton Kr 83,8 3,744 2,896 22,25
Xenon Xe 131,29 5,896 4,561 22,27
Hydrogen H2 2,01588 0,08987 0,06952 22,43
Oxygen O2 31,9988 1,42895 1,1053 22,39
Ozone O3 47,9982 2,1415 1,6565 22,41
Nitrogen N2 28,0134 1,25046 0,9672 22,40
Chlorine Cl2 70,906 3,214 2,4861 22,06
Fluorin F2 37,9968 1,696 1,312 22,40
carbon monoxide CO 28,0104 1,2500 0,9669 22,41
carbon dioxide CO2 44,0098 1,9769 1,5292 22,26
nitrogen monoxide NO 30,0061 1,3402 1,0367 22,39
nitrous oxide N2O 44,0128 1,9804 1,5319 22,22
sulfur dioxide SO2 64,0588 2,9262 2,2635 21,89
hydrogen chloriode HCl 36,461 1,6392 1,2679 22,24
hydrogen bromide HBr 80,912 3,6443 2,8189 22,20
hydrogen iodide HI 127,9124 5,789 4,478 22,10
Ammonia NH3 17,0304 0,7714 0,5967 22,08
Phosphine PH3 33,9975 1,5307 1,1840 22,21
Water (Steam) H2O 18,0153 (0,804) 0,622 22,41
hydrogen sulfide H2S 34,0758 1,5385 1,1901 22,15
hydrogen selenide H2Se 80,9758 3,6643 2,8344 22,10
Methane CH4 16,0428 0,7168 0,5545 22,38
Ethane C2H6 30,0696 1,3566 1,0494 22,17
Propane C3H8 44,0962 2,0096 1,5545 21,94
Ethene C2H4 28,0536 1,2604 0,9749 22,26
Ethine C2H2 26,0379 1,1747 0,9086 22,17

d= relative density

Vo = molar volume

1 Liter = 1 dm3.

Mr = relative molecular weight

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