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A quantity of gas is collected in a grad...

A quantity of gas is collected in a gradutated tube over the mercury. The volume of the gas at `20^(@)C` is `50.0 mL` and the level of the mercury in the tube is `100 mm` above the outside mercury level. The barometer reads `750 mm`. Volume at `STP` is

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The correct Answer is:
`39.84mL; (b) 52.10 mL`
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