D DougHenneberger New member Oct 6, 2010 #1 Each time you inhale, you take in about 500 mL of air, each milliliter of which contains 2.5x10^19 molecules. Lincoln inhaled 200 times during his run.
Each time you inhale, you take in about 500 mL of air, each milliliter of which contains 2.5x10^19 molecules. Lincoln inhaled 200 times during his run.