Question

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

Answer 1

Answer:

Correct option is

A

11.3 g

1 mole of any gas at STP occupies a volume of 22.4 L.

1 L at STP corresponds to

22.4

1

=0.0446 moles.

The molar mass is 254 g/mol.

The mass of 1 L of a gas at STP will be 254×0.0446=11.3 g.