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Pure A: 450, B: 700 mm Hg. An ideal mix totals 600 mm Hg. What is xA?
A0.3
B0.6
C0.5
D0.4
Answer & Solution
Correct answer: D. 0.4
600 = 450 xA + 700(1 - xA) gives 250 xA = 100, so xA = 0.4.
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