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Calculate density of a gaseous mixture w...

Calculate density of a gaseous mixture which consist of `3.01 xx 10^24` molecules of `N_2 and 32 g` of `O_2` gas at 3 atm pressure and `860 K` temperature (Given : `R=1/12` atm `L/mole.K`)

A

` 0.6 g//L`

B

` 1.2 g//L`

C

`0.3 g//L`

D

`12 g//L`

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