Multiple Choice
Atmospheric pressure at sea level is equal to a column of 760 mm Hg. Oxygen makes up 21 percent of the atmosphere by volume. The partial pressure of oxygen (PO2) in such conditions is ________.
A) 160 mm Hg
B) 16 mm Hg
C) 120/75
D) 21/760
E) 760/21
Correct Answer:

Verified
Correct Answer:
Verified
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