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Density of dry air containing ony N2 and...

Density of dry air containing ony `N_2 and O_2` is `1.15 g/L` at `740 mm ` of `Hg and 300 K`. What is % composition of `N_2` by mass in the air ?

A

`82.5% N_2 & 17.5 %O_2`

B

`62.5%N_2 & 37.5% O_2`

C

`42.5%N_2 & 57.5% O_2`

D

`22.5%N_2 & 77.5% O_2`

Text Solution

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The correct Answer is:
A
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