Question

vapour density of a gas with respect to oxygen is 1.5.the molar mass of a ga​

Answer 1

we have to molar mass of a gas if vapour density of the gas with respect to oxygen is 1.5.

solution : vapor density of the gas with respect to oxygen = vapor density of  the gas/vapor density of oxygen

we know, molar mass of a gas = 2 × vapour density of that gas.

∴  vapor density of the gas with respect to oxygen = vapor density of  the gas/vapor density of oxygen  = molar mass of the gas/molar mass of oxygen

∵ molar mass of oxygen = 32 g/mol

and the vapor density of the gas with respect to oxygen is 1.5

∵ 1.5 = molar mass of the gas/32

⇒ molar mass of the gas = 48 g/mol

therefore the molar mass of the gas is 48 g/mol.