0.24 gm of a volatile liquid upon vaporisation gives 45 ml of vapours at STP. What will be the vapour density of the substance? (Density of H, =0.089 gm `"litre"^(-1)` )

Options

A. 9.539
B. 59.7
C. 59.93
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`