Gases:  Elements and Compounds that are Gases at Room Temperature
Common Gases at Room Temperature
 Element/Compound name   Molecular Formula   Molar Mass
Hydrogen
H2
2.02
Helium
He
4.00
Methane
Ch4
16.04
Ammonia
NH3
17.03
Neon
Ne
20.18
Carbon Monoxide
CO
28.01
Nitrogen
N2
28.01
Nitrogen Oxide
NO2
30.01
Ethane
C2H6
30.07
Oxygen
O2
32.00
Hydrogen Sulfide
H2S
34.08
Hydrogen Chloride
HCl
36.46
Fluorine
F2
38.00
Argon
Ar
39.95
Carbon Dioxide
CO2
44.01
Dinitrogen Oxide
N2O
44.01
Propane
C3H8
44.10
Nitrogen Dioxide
NO2
46.01
Ozone
O3
48.00
Butane
C4H10
58.12
Sulfur Dioxide
SO2
64.06
Boron Trifluoride
BF3
67.80
Chlorine
Cl2
70.91
Krypton
Kr
83.80
Xenon
Xe
131.30
Sulfur Hexafluoride
SF6
146.05
Next:  "Pressure"