Question

___determines the relation between mass and vapour density​

Answer 1

Vapour density is the density of a vapour in relation to that of hydrogen. 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.

Answer 2

Explanation:

vapour density is the density of vapour in relation to that of hydrogen

vapour density = mass of n molecules of gas/ mass of n molecules of hydrogen