A resting person requires 14.5L of per hour to maintain metabolic activities. Such a person breathes in 0.510L of air at approximately 32.0 degrees celsius with each breath. The inhaled air is 20.9 % while the exhaled air is 16.3%
a. How many breaths per minute does a resting person need to take to provide the necessary oxygen?
b. How many molecules does a resting person inhale per breath?