Chemistry, asked by PragyaTbia, 1 year ago

At 0°C, the density of a certain oxide of a gas at 2 bar is same as that of dinitrogen at 5 bar. What is the molecular mass of the oxide?

Answers

Answered by athutayade
45
HERE IS YOUR ANSWER

Using the relationship of density (ρ) of the substance at temperature (T)

We have ρ = Mp/RT

or p = ρ RT/ M

For the given data if M is the molar mass of the gaseous oxide, we have

2 = ρ RT/ M ……………(1)

Also for nitrogen 5 = ρ RT/28 ………………….(2)

From (1) & (2), we have

5/2 = M/28

Or

M = 5 X 28/ 2 = 70g/mol

Hence, the molecular mass of the oxide is 70 g/mol.

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