If 20% of the Air Is Composed of O₂, the Partial

question 179

Multiple Choice

If 20% of the air is composed of O₂, the partial pressure of oxygen at sea level where atmospheric pressure is 760 mm Hg is

• A) 20 mm Hg
• B) 760 mm Hg
• C) 70 mm Hg
• D) 350 mm Hg
• E) 152 mm Hg

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