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 mmHg

Question

Quizplus · Accepted Answer

The partial pressure of a gas is calculated by multiplying the total pressure by the fraction of the gas. Here, 20% of 760 mmHg is 0.20 * 760 mmHg = 152 mmHg.

If 20 Percent of the Air Is Composed of O2

If 20 Percent of the Air Is Composed of O₂