Question

Calculate the molecular masses of the following compounds  :

Ethane, C₂H₆ 

(Atomic masses : C = 12 u ; H = 1 u)

Answer 1

Given:

Atomic mass of C = 12 u

Atomic mass of H = 1 u

Therefore, molecular mass of C₂H₆ (ethane) can be calculated as follows:

(2 × 12) + (6 × 1) = 30

Hence, molecular mass of ethane is 30 u.