The density of a gas at S.T.P

CHEMISTRY · Single correct · ICSE · Chemistry · Mole Concept and Stoichiometry · Mole Concept and Stoichiometry

Problem

The density of a gas at S.T.P. is 1.40 grams per litre. The molecular weight of the gas is (1) 28 (2) 30 (3) 31.36 (4) 35