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+1 vote
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in Chemistry by (30.0k points)

2.9 g of a gas at 95 °C occupied the same volume as 0.184 g of dihydrogen at 17 °C, at the same pressure. What is the molar mass of the gas? 

1 Answer

+1 vote
by (130k points)
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Best answer

Volume (V) occupied by dihydrogen is given by, 

Let M be the molar mass of the unknown gas. Volume (V) occupied by the unknown gas can be calculated as

According to the question, 

Hence, the molar mass of the gas is 40 g mol–1 . : 

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