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At 0°C, the density of a certain oxide of a gas at 2 bar is same a...

At 0°C, the density of a certain oxi | Class 11 Chemistry Chapter States of Matter, States of Matter NCERT Solutions

Question:

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?

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

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

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

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Comments

Thakur vishesh
2019-12-18 20:45:02

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Thakur vishesh
2019-12-18 20:44:26

Thanks

Sweksha
2019-09-19 08:52:05

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Sweksha
2019-09-19 08:51:27

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Rutuja
2019-09-07 18:44:40

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Smita
2019-09-05 16:31:41

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Ganesh sah
2018-11-01 20:14:27

Thanks

Shikha
2018-09-21 22:55:26

Ok ok good

steffy
2017-11-18 14:24:29

It's helpful

steffy
2017-11-18 14:23:47

M-mass P-pressure R-molar gas constant T-temperature

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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 4: At 0°C, the density of a certain oxide of a gas at 2 bar is same as that of dinitrogen at 5 bar.....

At 0°C, the density of a certain oxi | Class 11 Chemistry Chapter States of Matter, States of Matter NCERT Solutions

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