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A mixture of gases contains H2 and O2 ga...

A mixture of gases contains `H_2 and O_2` gases in the ratio of 1 : 4 (w/w) . What is the molar ratio of the two gases in the mixture ?

A

`16 : 1`

B

`2 : 1`

C

`1 : 4`

D

`4 : 1`

Text Solution

Verified by Experts

The correct Answer is:
D
No. of moles of `H_(2) = ("Mass")/("Molar mass") = ((1g))/((2g mol^(-1))) = 1/2` mol
No. of moles of `O_(2) = ("Mass")/("Molar mass") = ((4g))/((32 gmol^(-1))) = 1/8 mol`
Molar ratio of `H_(2) : O_(2) = 1/2 : 1/8 = 4 : 1`
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