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Around 0.12 percent, it differs in different countries depending on the environment and altitude.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoIt varies, depending on the temperature and pressure. At standard temperature and pressure, air has a density of about 1.2 grams/liter, while helium has a mass of about 0.18 grams/liter.
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Why does density decrease when air is expanded?
Density is a measure of the amount (as a mass) of something for a given volume (liters).So, for example, there may be 1 billion atoms in 1 liter of air. If this volume of air expands, then the individual atoms will become further apart, and you will therefore have fewer atoms in the 1 liter of air, and there fore it will be less dense.
How many grams is 1 Liter of Helium?
you need to state the temperature and pressure. The ideal gas law shows that pressure is inversely proportional to volume and temp is proportionally to volume, so volume, and thus, concentration of molecules, thus weight would be different depending on the temperature and pressure.
Does an alpha particle have a relative mass of 1 amu and no charge?
No, an alpha particle has a mass of 4 amu and a charge of +2. It is a helium nucleus. The neutron has a mass of 1 amu and no charge.
How much force is needed to push a nearly weightless but rigid 1-l carton beneath a surface of water?
In order to submerge the 1-liter carton, you must displace 1-liter of water.The carton will be buoyed up by the weight of that 1-liter of water.The mass of 1-liter of water is nominally 1 kilogram.On earth, 1 kilogram of mass weighs 2.205 pounds. (rounded)That's the force needed to keep the carton submerged.
What weighs less than air?
something that is lighter than the molecular mass of water.Mr of water= 2(1)+16=18therefore, anything with a Mr of lesser than 18 will be lighter than water vapour.example: hydrogen gas.Mr of hydrogen gas= 2(1)= 2therefore, it is lighter than water vapour.
Is the mass of 1 liter of feathers greater than the mass of 1 liter of nails?
No. The mass of one liter of feathers is not greater than the mass of 1 liter of nails. The mass of 1 liter of nails is greater than the mass of 1 liter of feathers. That's why 1 liter of nails is heavier than 1 liter of feathers.
Why is a 1 liter balloon filled with helium is less dense than 1 liter balloon filled with nitrogen?
Better check on that again, helium is lighter than air and the specific gravity of air is approximately 1.3 milligrams per cubic centimeter. Water weighs much more than air, 1 gram per cubic centimeter.
What is heavier 1 liter of air or 1 liter of water?
Water because a liter is a measurement of space and not mass. Water occupying 1 liter of space is lots heavier than air occupying 1 liter of space. <><><><><> It depends on density. It is possible, given enough pressure, to have one liter of air weigh more than one liter of water.
How does 0.025 kilogram converted into liters?
1 Liter of water = 1 KG of water 1 liter of air = practically weightless Liter is m3 (mass) where Kg is weight
How many kilograms in a liter?
That depends on what the liter has in it. -- If the liter of space has air in it, there's roughly 0.0012 kilogram of mass there, but the exact number depends on the temperature and pressure. -- If the liter of space has water in it, there's roughly 1 kilogram of mass there. -- If the liter of space has gold, stones, or lead in it, there are several kilograms of mass there. -- If the liter of space is empty, there's no mass there at all. Units of mass (kilograms) are incompatible with units of volume (litres).
What has a greater mass 1 liter of water or 1 liter of alcohol?
Water.
How many Helium-atoms and Carbon-atoms do you have if you have He-atoms with mass of 40amu and C-atoms with mass of 120amu?
Mass of 1 Helium atom is 4 amu and mass of 1 Carbon atom is 12 amu. So there are 10 helium atoms and 10 carbon atoms
What is the mass of a liter of water in grams and kilograms?
1 liter of H2O at 4 degrees C has a mass of exactly 1000 grams 1 liter of H2O at 4 degrees C has a mass of exactly 1 kilogram
What is the heaviest element a star with a mass of 1 solar mass can fuse?
Helium.
Is 1 liter of an acid an example of mass or density?
Mass
A balloon has a volume of 6.3 liters Calculate the mass of helium that it would take to fill the balloon?
The mass of helium contained will be 1 gram.
What is the mass of 1 liter of H20?
1 litre.
