Question

what is the reaction between molecular mass and vapour density of a gas
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Answer 1

Answer:

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Answer 2

Answer:

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 . Vapour density is a unitless quantity.