Question

2. Aqueous barium chloride reacts with sulfuric acid according to the equation: BaCl₂ (aq) + H₂SO4 (aq) → BaSO4 (s) + 2HCI (aq) 0.1 mol of barium chloride was added to 250 cm³ Of 0.2 mol/dm³ H₂SO4. Which reactant was supplied in excess? [2]​

Answer 1

Answer: The reactants are both supplied in equal amounts, so there is no excess or deficient reactant. The balanced chemical equation shows that one mole of each reactant is consumed in the reaction, and the coefficients indicate that they are stoichiometrically equivalent. Therefore, the reaction will proceed until all of the reactants have been consumed and the products are formed.