Question

calculate the molecular mass of H2o in u​

Answer 1

Answer:

molecular mass of H2O = 18 u

Explanation:

Given molecule,

H2O

molecular mass of Hydrogen atom

= 1 u or 1 g

so,

mass of 2 hydrogen

= 2u

and mass of oxygen atom

= 16 u or 16 g

so,

total mass of H2O

= 16 + 2

= 18 u

Answer 2

H2O molecule is 18.02 amu.