Question

calculate the molecular mass of H2O (atomic mass H=1u, O=16u

Answer 1

18 g/mol

Explanation:

Given: Atomic mass of H = 1, O = 16

Molecular mass is the total submission of the atomic masses of all the elements.

H₂O = 2 × atomic number of H + atomic number of O

        = 2 ×1 + 16

        = 18 g/mol