Question

if the vapour density of gaseous chlorine is 35.5; find the relative molecular mass of chlorine....​

Answer 1

Explanation:

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.

Answer 2

Answer:

Or we can say by taking the density of hydrogen as 1, this ratio is equal to the half the relative molecular mass of the gas. Here, given that, the molar mass of chlorine is 35.5. Chlorine is present in a gaseous state as Cl2. Therefore the molar mass of chlorine gas is 71.