0.24 gm of a volatile liquid upon vaporisation given 45 ml of vapours at STP. What will be the vapour density of the substance? (density of `H_2=0.089gmlitre^-1`)

Options

A. 9.539
B. 59.93
C. 5.993
D. 95.39

Answer

B

Explanation

It is an example of victor Meyer's method
`Mw=("mass of compound "xx22400)/("volume of vapours at STP")`
`=(0.24xx22400)/(45)=119.46`
Vapour density `=(Mw)/(2)=(119.46)/(2)=59.7`