Derive the relation between vapour density and molecular weight.
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Answer:Deriving relation between vapor density and molecular mass of a gas: ... V.D =mass of n molecules of gas or vapormass of n molecules of hydrogen gasmass of n molecules of gas or vapormass of n molecules of hydrogen gas.
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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 38.3
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