Question

How many number of atoms are present in 1.6gm Ozone

Answer 1

2O3 -----> 3O2


So 96 g of o3 gives 3 mole of oxygen


1g of ozone gives 3 ÷ 96 mole of oxygen


1.6g of ozone gives 3 ×1.6÷ 96 moles of oxygen

Moles of oxygen = 0.05 mole

Number of oxygen atom = mole × Na
1 moles of oxygen has 2 oxygen atom


So 0.05 moles of oxygen have 2 × 0.05 atom of oxygen


Atom of oxygen = 0.1 atoms
This can be answer


But in avagadro number
It ans is
O.1 × 6.02× 10^ 23
0.602 × 10^ 23 = atom of oxygen


Hope it helps