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CRS Question, 5–24
ANSWER
Choice 1 is the molar mass of freon –12. The pressure must be corrected
for the presence of water by subtracting 32 mmHg from the total
pressure. This should also be converted
to atm. The temperature
must be converted to K. Then PV
= nRT can be used if n is written as g/mm and solved
for mm.
Section
5.5: Dalton’s Law of Partial Pressures