Question

find the number of atoms in 48g of ozone at STP​

Answer 1

Answer:

18.066×1023 atoms is the correct answer..

Answer 2

Answer:

Molecular formula of ozone is O3O3 hence we can say that one molecule of ozone contains 3 atoms of oxygen.Now atomic mass of oxygen is 16,and

molecular mass of ozone is 48 because it contains 3 oxygen molecules. So we can say that 48 grams of ozone contains 1 mole of ozone which means there are 3 moles of oxygen present in 48 grams of ozone.Now as per Avagadro’s number 1 mole of a substance contains 6.022×10236.022×1023 molecules.

So 1 mole of Ozone contains

6.022×10236.022×1023 molecules of ozone and hence we can say that 48 grams of ozone contains

3×6.022×10233×6.022×1023 atoms which comes out to be18.066×102318.066×1023 atoms of oxygen.