Question

vapour density of a gas with respect to oxygen is 1.5 . the molar mass of a gas is a) 3g / mol
b) 6g / mol
c) 32g / mol
d) 48 g / mol​

Answer 1

Vapour density can be given as

Vapour density= molar mass /2

Given, vapour density= 1.5

Therefore,Molar mass = vapour density×2

= 1.5 × 2

= 3

Molar mass of a substance is the mass of 1 mole particles of that substance.

Vapour density of a substance is directly proportional to molar mass.

Answer 2

Option a is correct

a) 3g / mol

The density of vapour can be expressed as

molar mass /2 = vapour density

Given that the vapour density is 1.5,

As a result, molar mass equals vapour density *2.

= 1.5 *2

= 3

A substance's molar mass is the mass of one mole of that substance's particles.

A substance's vapour density is related to its molar mass.