Question

calculate mass of 200 molecules of water​

Answer 1

Answer:

The molecular weight of water is 18 g/mol. Hence, one mole of water weighs 18 g.

One mole of water contains 6.023×10

23

water molecules.

Mass of one water molecule =

6.023×10

23

18

=2.988×10

−23

Answer 2

Explanation:

The molecular weight of water is 18g.

So, 1 mole of water is 18g.

So, Mass of 200 molecules of water would be 200×18g = 3600g / 3.6kg.

Hope it helps!!!!