Question

Convert into mole : 

(a) 20g of water (Atomic masses of hydrogen and oxygen are 1 and 16 respectively). ​

Answer 1

Answer:

molar mass of water =H2O=2+16=18

so, one mole of water weighs =18g

which implies ,18g of water =1mole

therefore ,20g of water =20/18

1.11 mole