Science
ID #1111
How many molecules of oxygen do breathe in in one breath?
The average pair of human lungs can hold about 6 liters of air, but during normal respiration, only about 500 mL (one half of a liter) is inspired.
Oxygen makes up 21% of air.
There are 2.7 x 1019 (2,751.3) molecules in every cubic centimeter of air.
0.5 liter (500 cubic centimeter) contains 1,375,650 molecules, 21% of which are 288,886.5 oxygen molecules.
(see Composition of Air)
Tags: science
Related entries:
- Why is the sky blue?
- Do children lose all 20 primary teeth?
- Do baby teeth have nerves similar to permanent teeth? If a cavity in baby teeth is drilled, is the sensation the same as in adult teeth?
- How many roots do canine teeth have?
- How do I find the area of a right triangle?
Last update: 2007-12-10 14:31
Author: Ask MIStupid
Revision: 1.0
Print Page
You cannot comment on this entry
Comment of me:
hi, actually there are 2.7 x 10^19
molecules = 27,000,000,000,000,000,000 molecules
per cubic centimetre of air.
Added at: 2008-01-19 17:01
|
