This is the composition of the air.
There is 13-16% oxygen in expired air but it depends on your size. See the link below.
The three gases that make up over 99.9 percent of the air are nitrogen (about 78 percent), oxygen (about 21 percent), and argon (about 0.9 percent).
if this is math and your asking what gas has a percent by volume 78.09 it is nitrogen
Divide 225ml by 20.9, then multiply by 100.
The percentage of nitogen in outdoor air is 78%. 21% is oxygen, and 1% is water vapor, argon, carbon dioxide, and other gases.
About 21% of air is oxygen.
oxygen
oxygen! There is 21 percent oxygen in inspired ( the stuff you breath in) air and 13 percent in expired(the stuff you breath out)
Air is 20.5 percent oxygen.
air is made of 19.98 percent oxygen 79 percent nitrogen and 2 percent carbon
21 percent.
This is the composition of the air.
There is 13-16% oxygen in expired air but it depends on your size. See the link below.
Yes. The air we breathe every day is 21% oxygen.
Oxygen(02)=20.947
There is approximately 21 % oxygen in our air.