Multiple Choice
Solutions of benzene and toluene obey Raoult's law.The vapor pressures at 20°C are: benzene,76 torr;toluene,21 torr.
-What is the mole fraction of benzene in a benzene-toluene solution whose vapor pressure is 51 torr at 20°C?
A) 0.26
B) 0.45
C) 0.55
D) 0.67
E) 0.74
Correct Answer:

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Correct Answer:
Verified
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