Question

16g of oxygen contain 1 mole of oxygen.Calculate the mass of one atom of oxygen

Answer 1

Ans. 1 Mole of Oxygen = 6.022 × 1023 atoms

=> 6.022 ×10 23 atoms have weight = 16g

=> weight of 1 atom  = 166.022 ×1023

=> 2.66 ×10-23 g

Answer 2

1 Mole of Oxygen = 6.022 × 1023 atoms

6.022 ×10²³ = 16g

weight of 1 atom  = 166.022 ×1023

=2.66 ×10⁻²³ g