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3.7 g of a gas at 25°C occupies the same...

3.7 g of a gas at 25°C occupies the same volume as 0.184 g of hydrogen at 17°C and at the same pressure. What is the molecular mass of the gas ?

A

`82.66`

B

41.33

C

20.67

D

10.33

Text Solution

Verified by Experts

The correct Answer is:
2
For hydrogen we known that
`PV=(w)/(M)RT=(0.184)/(2)xxRxx290`
For unknown gas `PV=(3.7)/(M)xxRxx298`
Equating both the equation
`(3.7)/(M)xxRxx298=(0.184)/(2)xxRxx290`
`M=41.33`
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