How much weight will one liter of air float in water?

Answer 1

Disregarding the weight of the balloon or pontoon that holds the air . . .

1 cubic foot (1,728 cubic inches, 7.481 gallons) for each 62.4 pounds of weight.

Note: If the weight is hanging in the water, underthe air, then the weight itself produces some

buoyancy, and less air is required to keep it from sinking to the bottom. The amount of buoyancy

depends on the volume of the weighty object, which can't be determined from the information

given in the question. (i.e., none)

Answer 2

One liter of air will displace one liter of water, which is equivalent to about 1 kilogram or 2.2 pounds. Therefore, one liter of air will be buoyant enough to float approximately 1 kilogram of weight in water.

Answer 3

1 kg. This is because the one litre volume of air displaces a maximum of one litre of water which weighs one kilogram.