Question

molecular mass of 20 moles of H2o​

Answer 1

Answer:

360 gm

Explanation:

molecular mass of 1 mole H2O is 18 gm

20 moles=20×18gm=360 gm

   

HOPE IT HELPED!!

Answer 2

Answer:

One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol