Question

Example 3.1 (a) Calculate the relative
molecular mass of water (HO).
(b) Calculate the molecular mass of
HNOS​

Answer 1

Explanation:

Atomic masses:

H = 1, O = 16, N = 14, S = 32

a) Molecular mass of water = H + H + O = 1 + 1 + 16 = 18

Molecular mass of HO = 1 + 16 = 17

b) Molecular mass of HNOS = 1 + 14 + 16 + 32 = 63