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A sample of oxygen gas and a sample of a...

A sample of oxygen gas and a sample of an unknown gas are weighed separately in the same evacuated flask. Use thedata given below to find the molar mass of the unknown gas (assume experiments are carried out at the same pressure and temperature).
`|:(" Mass of evacuted flask",,124.46 g),(" Mass of flask+oxygen",,125.10g),("Mass of flask+unknown gas",,125.34 g):|`

A

22 g/mol

B

38g/mol

C

44g/mol

D

84g/mol

Text Solution

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The correct Answer is:
c
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