lets estimate ... helium weighs 4 g / 22.4 L at stp. Air is about (.8*28 +.2*32) or 28.8 g / 22.4 L at stp. this gives a lifting ability of 28.8-4 = 24.8 g for 4 g of helium.
210 / 24.8 = 8.468 times as much. or 8.468 x 4 = 33.872 g He
or 8.468 x 22.4 = 189.6832 Liters of He at stp.
This ignores any weight of a balloon to hold the helium or a 'basket' to hold the 210 g object. This is about 6.5 or 7 cubic feet of He, a large amount. weight of the balloon will become important.
Chat with our AI personalities
2,88 grams of helium have 3,761.1023 atoms; 16,4 grams of zinc have 1,511.1023 atoms.
The molar mass of helium is 4 g/mol. This means that 1 mole of helium has a mass of 4 grams. Since 2.5 moles of helium have a mass of 10 grams, the atomic mass of helium is 4 grams/mol.
To find the number of moles in 6.071 grams of helium, divide the given mass by the molar mass of helium. The molar mass of helium is approximately 4 grams per mole. Therefore, 6.071 grams / 4 grams/mol ≈ 1.52 moles of helium.
2 moles of helium is equal to approximately 8 grams, since the atomic mass of helium is 4 grams per mole.
Helium is lighter than the surrounding air, which makes it less dense and causes it to float. This buoyant force is due to the difference in density between helium and the air, allowing helium balloons and airships to rise in the atmosphere.