At a certain temperature, the vapour density of sulphur with respect to nitrogenn is 9.15. find the number of atoms present in each molecule of sulphur vapour.

Explanation

`V.D_("sulphur vapour")=`vapour density of sulphur with respect to nitrogen`xx`vapour density of nitrogen
`=9.15xx(28//2)=128.1`
moleulcar mass of sulphur vapour`=2xx`vapour density
`=256.2`
`therefore`Number of atoms present in sulphur vapour`=(256.2)/(32)=8`.