ABOUT MOLECULAR WEIGHTS AND REACTIONS: Determine the molecular weights:
i) Ethyl alcohol,
CH3OH: _____ ii) Methane, CH4: _____
iii) Oxygen,
O2: _____ iv) n-Octane, C8H18: _____ v)
Helium, He: _____
a) If identical masses of each of the substances are
at the same fixed temperature and fixed pressure, which is least likely to
be liquid? _______
b) If identical masses of each of the substances are
at the same fixed temperature and fixed pressure, which is most likely to
be liquid? _______
c) Does it matter what masses were involved?
______
d) Ethyl alcohol and oxygen have near equal molecular weights.
Which is more likely to be liquid. ______.