Question

vapour density of a gas with respect to oxygen is 1.5. the molar mass is what?
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Answer 1

Answer:

Under the same temperature and pressure, 1 mole of ozone and 1 mole of oxygen has the same volume.

Explanation:

Thus, the density will be directly proportional to mass (as volume is constant).

The mass is proportional to molecular weight.

The mass of 1 mole of ozone (48 g/mol) is 1.5 times the mass of 1 mole of oxygen (32 g/mol).

Hence, the density of ozone relative to oxygen is under the same temperature and pressure is 1.5.

Answer 2

we have to molar mass of a gas if vapour density of the gas with respect to oxygen is 1.5. we know, molar mass of a gas = 2 × vapour density of that gas. therefore the molar mass of the gas is 48 g/mol.