Which of the following contains maximum number of atoms?

Question

A) 6 mol of sulphur

B) 2.0 mol of S8

C) 5.0 mol of S02

D) 44.8 Dm3 of C02 at STP

Answer 1

A) 6 mol S = 6 moles x 6.02x10²³ atoms/mol = 3.6x10²⁴ atoms

B) 2.0 mol S₈ = 2.0 mol x 6.02x10²3 molecules/mol x 8 atoms/molecule = 9.6x10²⁴ atoms

C) 5.0 mol SO₂ = 5.0 mol x 6.02x10²³ molecules/mol x 3 atoms/molecule = 9.0x10²⁴ atoms

D) 44.8 dm3 CO₂ @ STP = 44.8dm³ x 1 L/dm³ x 1 mol/22.4 L x 6.02x10²³ molecules/mol x 3 atoms/molecule = 3.6x10²⁴ atoms

ANSWER would be (B)