Question

What is the partial pressure of O2 in a room with air pressure of 2,000 mmHg, 30% of oxygen, and 4,000L of air?

Group of answer choices

120 mm Hg

600 mm Hg

6000 mm Hg

1200 L

Answer 1

600 mm Hg

Step-by-step explanation:

partial pressure of oxygen = Air pressure times fractional concentration of oxygen

partial pressure of oxygen = 2,000 mmHg times 0.30 = 600 mmHg