Question

Calculate the molecular masses of the following compounds :

Ethanol, C₂H₅OH

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 C₂H₅OH can be calculated as follows:

(2 × 12) + (6 × 1) + (1 ×16) = 46

Hence, molecular mass of ethanol is 46 u.