There is a mixture of gases in dry air, with an atmospheric pressure of 760 mm Hg. Calculate the partial pressure of each gas for the examples below:

A. 20.7% oxygen, 78.2% nitrogen, 0.4% carbon dioxide
B. 45% oxygen, 41% nitrogen, 3% carbon dioxide, 11% hydrogen
C. 79% oxygen, 15% nitrogen, 5% carbon dioxide, 1% argon


Partial pressure = Patm × % gas in atmosphere.
A. 157.32 mm Hg oxygen, 594.32 mm Hg nitrogen, 3.04 mm Hg carbon dioxide
B. 342 mm Hg oxygen, 311.6 mm Hg nitrogen, 22.8 mm Hg carbon dioxide,
83.6 mm Hg hydrogen
C. 600.4 mm Hg oxygen, 114 mm Hg nitrogen, 38 mm Hg carbon dioxide,
7.6 mm Hg argon

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