Question

Calculate the molecular mass of ethanoic acid, CH₃COOH.
(Atomic masses : C = 12 u ; H = 1 u ; O = 16 u)

Answer 1

Given:
Atomic mass of C = 12 u
Atomic mass of O = 16 u
Atomic mass of H = 1 u
Therefore, molecular mass of CH₃COOH can be calculated as follows:
(2 × 12) + (4 × 1) + (2 ×16) = 60
Hence, molecular mass of acetic acid is 60 u.