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The masses of equal volumes of a gas and...

The masses of equal volumes of a gas and hydrogen are 25.6 g and 0.8g respectively under same conditions of temperature and pressure. Find the molecular mass of the gas.

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V.D. of the gas `(25.6)/(0.8)=32.0`
Molecular mass `=2V.D.=2xx32.0=64.0`
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