Practice Questions

Stoichiometric mixture. Na₂CO₃ = 1 mol. Mass = 106 g.

O₂ is limiting. CO₂ = 3.2 mol. Volume = 71.68 dm³.

Stoichiometry is based on these fundamental chemical laws.

Potassium is limiting. KOH formed = 1 mol. Mass = 56 g.

Na₂CO₃ is limiting. CO₂ formed = 0.5 mol. Mass = 22 g.

Stoichiometric mixture. SO₂ = 1 mol. Mass = 64 g.

Stoichiometric coefficients always represent mole ratios.

0.2 mol Pb(NO₃)₂ produces 0.5 mol gases. Volume = 11.2 dm³.

BaCl₂ is limiting. BaSO₄ formed = 0.3 mol. Mass = 69.9 g.

10 mol A require 20 mol B. Only 10 mol B are available, so B is limiting.