Calculate the molar masses of the following substances. Write the results with proper units.
(i) Ozone molecule, O3
(ii) Ethanoic acid, CH3COOH
Molar mass of ozone (O3) = 3 × gram atomic mass of O = 3 × 16 g = 48 g/ mole
(ii) Molar mass of Ethanoic acid (CH3COOH) = 2×C + 4×H + 2×O = (24 + 4 + 32)u = 60 g/ mole