Question

the mass of a molecule of water is:

Answer 1

mass of a molecule of water (H2O ) is 18.015 g .

hope its help you :)

Answer 2

Answer:

3* 10^-26Kgram   or 3*10^ -23 gram

Explanation:

Well, the atomic weight of hydrogen is 1.01 grams, and the atomic weight of oxygen is 16.00 grams. These are values of 1 mol of these atoms.

The overall mass of 1 mol of water is:

(1.01×2)+16.00=18.02g/mol

(1.01×2)+16.00=18.02g/mol

Using Avogadro’s number, we can determine the mass of 1 molecule of water:

18.02/(6.022* 10^23 )= 2.99 *10^-23 gram   or 2.99*10^-26Kgram