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If 20 Percent of the Air Is Composed of O₂,what

Question 132

Multiple Choice

If 20 percent of the air is composed of O₂,what is the partial pressure of oxygen at sea level where atmospheric pressure is 760 mmHg?

A) 20 mmHg
B) 70 mmHg
C) 152 mmHg
D) 760 Hg

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