The volume occupied by 16g of CH4 is _____?

2.24dm³

22.4dm³

224.14dm³

None of these

Molar mass of CH₄ = 12 (C) + 4×1 (H) = 16 g/mol, so 16 g = 1 mole of CH₄.

At standard temperature and pressure (STP), 1 mole of any gas occupies 22.4 dm³, so CH₄ also occupies 22.4 dm³.