Which sample contains the greatest number of atoms?
Correct answer C. 1 g of H₂
Explanation
Moles of atoms: H₂ gives 1/2 × 2 = 1 mol, He gives 0.25 mol, O₂ gives 0.0625 mol and CH₄ gives 5/16 = 0.31 mol, so hydrogen has the most atoms.
Answer checked How we write and check questions
Discussion