Question

Relation between molar mass and vapour density mathematical method​

Answer 1

Explanation:

It may be defined as mass of a certain volume of a substance divided by mass of same volume of hydrogen. vapour density = mass of n molecules of gas / mass of n molecules of hydrogen. (and thus: molar mass = ~2 × vapour density) For example, vapour density of mixture of NO2 and N2O4 is 38.

Answer 2

Answer:

Explanation:

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PV = nRT

n= X/M

X mass of the gas

M molecualr weight of the gas

D = m/V

PV = (X/M) (RT)

P = (D/M)(RT

D =PM/RT

∵From the above the more higher the M the D is higher (vapour heavier).

The more small the M the density is smaller (vapour lighter)