- (T, T, CE) The density of a gas at STP is found by dividing the molecular
mass by 22.4 L. NH 3 has a gram-molecular mass of N = 14 + 3H = 3 or a
total of 17 g. The gram-molecular mass of Ar is 40 g. The density of each can
be found by dividing by 22.4 L, but obviously the density of the ammonia will
be smaller.
marvins-underground-k-12
(Marvins-Underground-K-12)
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