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Q.

2 liters of moist hydrogen were collected over water at 26∘C at a total pressure of one atmosphere. On analysis, it was found that the quantity of H2 collected was0.0788  mole. What is the mole fraction of H2 in the moist gas?

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a

0.953 

b

0.967

c

0.897 

d

0.989 

answer is D.

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Detailed Solution

The mol fraction of H2 in the moist gas is,

n=1×20.0821×299

=0.0815

XH2=0.07880.0815

=0.967

Hence, option D is correct.

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