Question

A hexane solution contains as impurities 5.2% (by mass) hepatne and 2.9% (by mass) pentane. Calculate the mass of each component present in 93g of the solution.
93 x 0.029 = ??g
93 x 0.052 = ??g
It was that easy. I think I was trying to make it harder than it was. Thanks for the help
A mixture of gases with a pressure of 800.0 mm Hg contains 60% nitrogen and 40% oxygen by volume. What is the partial pressure of oxygen in this mixture?

A. 140.0 mm Hg

B. 320.0 mm Hg

C. 373.0 mm Hg

D. 480.0 mm Hg

aids

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