Question

1. Calculate the molar mass of the following:(i) H2 O (ii) CO2 (iii) CH4

Answer 1

Molecular mass of H2O = 2 (1.008 amu) + 16.00 amu = 18.016 amu. (ii) Molecular mass of CO2 = 12.01 amu + 2 ×16.00 amu = 44.01 amu. (iii) Molecular mass of CH4 = 12.01 amu + 4 (l.

Answer 2

Explanation:

1= 2( 1.008amu) + 16.00amu =18.016 amu