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0.48 g of a gas forms 100 cm^(3) of vapo...

0.48 g of a gas forms `100 cm^(3)` of vapours at STP. Calculate the gram molecular wt. of the gas.

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`100 cm^(3)` of the gas weights 0.48 grams at STP.
22,400 `cm^(3)` weight Mol. Wt. at S.T.P. `therefore (22400)/ 100 xx 0.48 = 107.52`
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