Question

180g of water can be represented as

Answer 1

1mole of water =18g

As we know that one mole of water has 6.022 x 10²³ molecules of water.

1mole[18g] of water-------------> 6.022 x10²³ molecules of water.

180g of water--------->?

=180x6.022 x10²³/18

=10x6.022 x10²³/

=6.022 x 10²⁴ molecules of water.

∴180g of water contains 6.022 x 10²⁴ molecules of water.

Answer 2

Molecular weight of water = (1*2)+16 = 18

Thus implies ,

18 gram ---. 1 mole

So, 180 g ---. 10 moles