A balloon contains 0.76 mol N2,0.18 mol Ar,0.031 mol He,and 0.026 mol H2 at 739 mm Hg.What is the partial pressure of Ar?
A) 19 mm Hg
B) 23 mm Hg
C) 130 mm Hg
D) 560 mm Hg
Correct Answer:
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