What is the partial pressure of oxygen in a gas mixture that is 40% oxygen, 40% argon, and 20% helium, when the total pressure of the gas is 1000 mm Hg?
A) 333 mm Hg
B) 600 mm Hg
C) 400 mm Hg
D) 100 mm Hg
E) 200 mm Hg
Ans: C) 400 mm Hg
Biology & Microbiology
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