Around 0.12 percent, it differs in different countries depending on the environment and altitude.
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.
Air is less dense than lead, meaning it has fewer particles per unit volume. Lead is a dense metal with a high atomic mass, while air is a mixture of gases like nitrogen and oxygen with much lower individual particle masses. As a result, 1 liter of lead contains more mass than 1 liter of air.
A liter bottle can hold approximately 1 liter of air.
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.
You would need approximately 65 cubic feet of helium to lift 1 pound. Helium provides lift because it is lighter than the surrounding air, creating buoyancy.
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.
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.
1 Liter of water = 1 KG of water 1 liter of air = practically weightless Liter is m3 (mass) where Kg is weight
The mass of 1 liter of feathers is less than the mass of 1 liter of nails. This is because feathers are less dense than nails, meaning they have less mass per unit volume. The mass of an object is directly proportional to its density and volume, so even though both 1 liter of feathers and 1 liter of nails occupy the same volume, the nails will have a greater mass due to their higher density.
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.
Air is less dense than lead, meaning it has fewer particles per unit volume. Lead is a dense metal with a high atomic mass, while air is a mixture of gases like nitrogen and oxygen with much lower individual particle masses. As a result, 1 liter of lead contains more mass than 1 liter of air.
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).
Water.
1 liter of water has a mass of 1000 grams since there are 1000 cubic centimeters in a liter.
Atomic mass = weight in gram / moles = 10 / 2.5 = 4 amu
The mass of 1 liter of water is approximately 1 kilogram or 1000 grams.
Ok, this would be a problem of essentially displacement as the lift is caused by displacing "air".Ok, so one needs the densities of air and helium at some given temperature and pressure... "STP" is common, although one really would need to do it at the ambient temperature... or to do the final conversion using the simple formula PV=nRT.According to answers.yahoo.com, the densities of air and helium at STP are:Density of helium = 0.0001785 g/cm³Density of air = 0.001293 g/cm³,Ok, so your questions is how many cm³ of helium are needed to lift 1 gm.... let's try to make an equation.So, if we displace X cm³ of air with Helium we have:(X cm³)*(Density of Air g/cm³) - (X cm³)*(Density of Helium g/cm³) = (mass displaced in grams).Set the amount of mass being displaced to 1 gram, and putting in the densities we have:(X cm³)*(0.001293 g/cm³) - (X cm³)*(0.0001785 g/cm³) = 1 g(X cm³)*(0.001293 g/cm³ - 0.0001785 g/cm³) = 1 g(X cm³) = 1g/(0.001293 g/cm³ - 0.0001785 g/cm³)(X cm³) = 897 cm³You had asked in liters... with 1000 cm³/liter, the answer would be:0.897 liters of helium would displace 1 gram of oxygen without taking into account the weight of the container, or any pressure imposed by inflating container such as a rubber balloon.