Question

which contain more molecules 0.5 moles of O2 or 0.5 moles of O3​

Answer 1

Answer:

O2 is your correct answer

Answer 2

1 mole of any gas will have 6.023 X 10^23 molecules in it.

Hence, 0.5 moles of O2 and 0.5 moles of O3 each will have same number of molecules in them, 0.5 X 6.023 X 10^23 => 3.0115 X 10^23 molecules each.