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A Gas Mixture of He and Ar Has a Total

Question 135

Multiple Choice

A gas mixture of He and Ar has a total pressure of 4.10 atm.What is the mole fraction of Ar if the partial pressure of Ar is 1.50 atm?

A) 0.634
B) 2.6
C) 36.6
D) 0.366
E) 63.4

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