Molecular weight CH₄ = 16.043 g/mole;
Molecular weight C₂H₆ = 30.07 g/mole;
Molecular weight C₃H₈ = 44.097 g/mole;
Molecular weight C₄H₁₀ = 58.124 g/mole;
Molecular weight C₅H₁₂ = 72.151 g/mole;
Molecular weight CO₂ = 44.010 g/mole;
Molecular weight H₂S = 34.080 g/mole;
Molecular weight N₂ = 28.014 g/mole;