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Oxygen comprises 20.946% of air...
therefore, the amount of air that contains 450mL of oxygen is:
(450mL) / (20.946%) = (450mL) / (0.20946) = 2148mL
Paying attention to significant figures (3) the final answer is 2.15 L of air.
****P.S.
Some teachers simplify the composition of air to contain only 20% oxygen.
If this is the case your answer becomes 2.25L of air.
What else can I help you with?
If air is 20.9 percent oxygen by volume what is the volume of air that contains 225 ml of oxygen?
Divide 225ml by 20.9, then multiply by 100.
Normal air contains what percentage of oxygen?
19.5% to 23.5%
Does ocean water have higher levels of oxygen than air?
No, air contains about 21% oxygen, while ocean water contains only about 5-10 milliliters of dissolved oxygen per liter. The higher concentration of oxygen in the air makes it easier for animals to extract the oxygen they need for respiration.
What gas has a percent of volume of 20.95?
if this is math and your asking what gas has a percent by volume 78.09 it is nitrogen
What is the differences between inhaled air and exhaled air?
Inhaled air contains a greater volume of oxygen than carbon dioxide. Exhaled air is the opposite, since after the exchange of gases in the lungs the carbon dioxide in the blood is transferred into the lungs. Exhaled air contains a greater volume of carbon dioxide than oxygen. Also, there is more water vapour in exhaled air than inhaled air.
How many percent of oxygen does air contain?
Air typically contains about 21% oxygen by volume.
If air is 20.9 percent oxygen by volume what is the volume of air that contains 225 ml of oxygen?
Divide 225ml by 20.9, then multiply by 100.
Does air or water have more oxygen?
Air has more oxygen compared to an equal volume of water. Air is composed of approximately 21% oxygen, while water contains dissolved oxygen, but in much lower concentrations, usually around 5-8 parts per million.
How much oxygen does exhaled air contains approximately?
A small percent . exhaled air always contains oxygen .
Normal air contains what percentage of oxygen?
19.5% to 23.5%
Does air effects length of time for a candle to burn?
yes.you need more air,as the candle will burn for longer in a bigger volume of air because the air contains oxygen which is needed for combustion
What makes up 21 percent of the air by volume?
Oxygen makes up 21 percent of the air by volume.
What volume of air contains 12.7g of oxygen gas at 273 K and 1.00 ATM?
Using the ideal gas law, PV = nRT, we can calculate the moles of oxygen gas present. Then, using the molar mass of oxygen, we can find the volume of air required to contain 12.7g of oxygen gas at 273 K and 1.00 atm.
Is there more oxygen in seawater or air?
There is more oxygen in seawater. Seawater contains around 5 to 10 milligrams of oxygen per liter, while the concentration of oxygen in the air is about 210 milligrams per liter. However, the total amount of oxygen in the oceans is much higher due to their vast volume.
What percentage of the air around is pure oxygen?
Air contains about 19-20% oxygen
How much oxygen is there in a 1meter cube of air?
As the density of Oxygen at 0º C is 1.429 kg/m³ i.e. cubic meters * density = kilograms so, 1 cubic meter of oxygen would weigh 1.429 kilograms.
How much oxygen in room?
About 20% of the volume of the air in the room is oxygen.
