A young male adult takes in about 4.0 10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. Assuming that the pressure in the lungs is 1.0 105 Pa and air is an ideal gas at a temperature of 310 K, find the number of oxygen molecules in a normal breath.

Question

A young male adult takes in about 4.0  10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. Assuming that the pressure in the lungs is 1.0  105 Pa and air is an ideal gas at a temperature of 310 K, find the number of oxygen molecules in a normal breath.

drwls · Answer

I answered this yesterday. The answer was posted at http://www.jiskha.com/display.cgi?id=1292881652