At sea level, what is the partial pressure (mm Hg)of oxygen in the air we breathe?
A)21
B)50
C)100
D)160
E)540

Name: At sea level, what is the partial pressure (mm Hg)of oxygen in the air we breathe? A)21 B)50 C)100 D)160 E)540
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Question

At sea level, what is the partial pressure (mm Hg)of oxygen in the air we breathe? ​
A)21
B)50
C)100
D)160
E)540 ​

Quizplus · Accepted Answer

At sea level, the total atmospheric pressure is approximately 760 mm Hg. Since oxygen makes up about 21% of the atmosphere, its partial pressure is 21% of 760 mm Hg, which is approximately 160 mm Hg.

At Sea Level, What Is the Partial Pressure (Mm Hg)of