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The lifting power of a 100 L balloon fil...

The lifting power of a 100 L balloon filled with He at 730 mm Hg at `25^(@)C` if density of air 1.25 g/L (mass of material of balloon neglected)

A

125 g

B

`109.3 g`

C

`140.7 g`

D

`15.7 g`

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