Question

Calculate the no. of atoms in o.20 mole molecules of oxygen

Answer 1

1 mole = 6.022×10^23 molecules
0.20 mole =6.022×10^23× 0.20
=12.044×10^22 molecules
1 molecule= 2 atoms in O2
:::》total atoms = 12.044×10^22×2=24.088×10^22