Question

Find the molecular mass of H2O.

Answer 1

Answer:

18u

Explanation:

Molecular mass of H= 1

Molecular mass of O= 16

Molecular mass of H2O = (1×2)+16=18

Answer 2

$\huge\boxed{Answer:}$

H2O

mass of hydrogen- 1.008 u[some times it is 1 but exact weight is 1.008u]

mass of oxygen- 16u

molecular mass- 1.008×2+16

=2.016+16

=18.016 u

Hope it helps you