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Liquids A and B have pure vapour pressures 450 and 700 mm Hg at 350 K. What is x(A) if ptotal is 600 mm Hg?
A0.6
B0.5
C0.4
D0.3
Answer & Solution
Correct answer: C. 0.4
600 = 700 + (450 - 700) xA gives xA = 0.4, so xB = 0.6.
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