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Oxygen makes up about 21% or approximately 1/5 of the air.
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∙ 8y ago
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What fraction of oxygen is air?
21%
What is the mole fraction of oxygen gas in air?
The mole fraction of Oxygen = 21/100= .21
How is oxygen in air replaced?
As the third most abundant element, oxygen in the air is made by plants and algae.
What percentage of dry air is made up of carbon dioxide?
its air dry made up of oxygen...
How is the oxygen made in the laboratory?
by getting a lab and air
What fraction of oxygen is air?
21%
What is the mole fraction of oxygen gas in air?
The mole fraction of Oxygen = 21/100= .21
What percentage or fraction of air is pure oxygen What comprises the most of the rest?
21% of air is pure oxygen
What fraction of the air is oxygen?
Well; putting simply, 21%
What do people breathe?
Air: 78% nitrogen, 21% oxygen, 1% other. We breathe oxygen and other molecules.
How you get oxygen?
we take in oxygen via the air. the air is made up of 21% oxygen and oxygen is produced by many things. our lungs intake the air. through the mouth and nose.
How is oxygen in air replaced?
As the third most abundant element, oxygen in the air is made by plants and algae.
Is Air is made up mainly of oxygen?
Air is mostly made up of nitrogen. Oxygen is the second largest amount in air. Carbon dioxide is the third largest amount in air. Hope this helps!
What is the air like on the Earth?
the earth air is made of air, oxygen, water and helium
What percentage of dry air is made up of carbon dioxide?
its air dry made up of oxygen...
What do you call the air that can breathe in?
It is normally know as 'air' and air is made up mostly of nitrogen and oxygen. Oxygen is the gas that the body needs to survive.
How does fire affect air?
Part of air is made up of oxygen without which fire can't happen. Air can feed a fire; it contains oxygen.
