Question

Which contains greater number of oxygen atoms?
GT
1 gm of o
(2) 1 gm of O2
(3) 1 gm of Og
4) All have same number of oxygen atoms
pls explain how the correct answer came​

Answer 1

Answer:

4. all have same number of oxygen atoms

Explanation:

For O (at.weight 16 gm)

1 mole = 16 GM

Therefore

1 GM = 1/32 = 0.625 moles

No. of atoms = 0.0625×(6.023×10^23) = 3.76×10^22 atoms

For O^2

1 mole of O^2 = 16×2=32g

1g = 1/32 = 0.0313 moles

Therefore

No. of atoms = 0.0313×(6.023×10^23)×2

=3.76×10^22 atoms

For O^3

1 mole of O^3 = 16×3=48g

1g = 1/48 = 0.0208 moles

Therefore

No. of atoms =0.0208×(6.023×10^23)×3

=3.76×10^22 atoms

Hence, all the three options have the same no.of atoms

Therefore. option 4 is the correct