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At STP (Standard Temperature and Pressure: 1 atmosphere of pressure, 0oC), one mole of any gas will occupy 22.4 liters of space. One mole of any substance contains 6.02 x 1023 particles (similar to how a dozen is 12 of anything). Air is about 21% oxygen, depending upon your location and local biotic and abiotic factors.
So, at STP, 1 liter of air is about 0.21 liters of oxygen. To find out how many moles that represents, divide 0.21 by 22.4. Take that answer and multiply by 6.02 x 1023. It should be a very large number, on the order of 1021.
What else can I help you with?
What diffuses faster air or oxygen gas why?
Oxygen gas diffuses faster than air because oxygen molecules are smaller and lighter than the molecules of air, which is mostly composed of nitrogen and oxygen. This allows oxygen molecules to move more quickly through a medium, such as air or other gases.
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.
Does cold air have less oxygen compared to warm air?
Yes, cold air typically has more oxygen compared to warm air because cold air is denser and can hold more oxygen molecules.
Why the pressure of oxygen becomes low at high altitudes?
At higher altitudes, the air pressure decreases because the air molecules are more spread out. This reduction in pressure means there are fewer oxygen molecules available in the air to be breathed in, leading to lower oxygen levels at high altitudes.
Does cold air contain more oxygen than warm air?
Yes, cold air typically contains more oxygen than warm air. This is because cold air is denser and can hold more molecules, including oxygen.
How many out of 200 air molecules are oxygen?
Air is 21% oxygen so 21% of 200 is 42 oxygen molecules.
How many moles of oxygen are present in the air?
The amount of oxygen in the air is about 0.21 moles per liter.
How many milliliters of nitrogen and oxygen are present in one liter of dry air?
20.95%oxygen and 78.08% nitrogen
What diffuses faster air or oxygen gas why?
Oxygen gas diffuses faster than air because oxygen molecules are smaller and lighter than the molecules of air, which is mostly composed of nitrogen and oxygen. This allows oxygen molecules to move more quickly through a medium, such as air or other gases.
What air molecules?
air molecules are , nitrogen , oxygen, and carbon dioxide mosly nitrogen (75%)
How many milliliters of nitrogen and oxygen are in a one liter sample of dry air?
In a one liter sample of dry air, there are approximately 780 mL of nitrogen and 210 mL of oxygen. Nitrogen makes up about 78% of dry air while oxygen makes up about 21%.
How much oxygen is in 1 liter of air?
Approx 180ml
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.
Does cold air have less oxygen compared to warm air?
Yes, cold air typically has more oxygen compared to warm air because cold air is denser and can hold more oxygen molecules.
Do air molecules have mass?
Yes, air molecules do have mass. Air is made up of various gases such as nitrogen, oxygen, and carbon dioxide, and each of these gas molecules contributes to the overall mass of the air.
What do people breathe?
Air: 78% nitrogen, 21% oxygen, 1% other. We breathe oxygen and other molecules.
Why the pressure of oxygen becomes low at high altitudes?
At higher altitudes, the air pressure decreases because the air molecules are more spread out. This reduction in pressure means there are fewer oxygen molecules available in the air to be breathed in, leading to lower oxygen levels at high altitudes.
