The molar mass of Nitric acid, HNO3 is
Molar mass of Nitrogen = 14 Molar mass of hydrogen = 1 Molar mass of oxygen = 16 Molar mass of nitric acid, HNO3 = 1 + 14 + 3 × 16 = 63 g
Calculate the molar mass of the following substances:
(a) Ethyne, C2H2
(b) Sulphur molecule, S8
(c) Phosphorus molecule, P4 (atomic mass of phosphorus = 31)
(d) Hydrochloric acid, HCl
(e) Nitric acid, HNO3