Answer Happy

Use the following information to answer the next two questions. Sulfur dioxide gas, SO₂(g), in air contributes to the formation of acid rain. The concentration of SO₂(g) in air can be determined by dissolving the SO2(g) in water and then titrating the solution produced with a standard solution of potassium permanganate, KMnO4(aq). The titration reaction can be represented by the following unbalanced equation. 2+ SO₂(aq) + MnO4¯ (aq) + H₂O(1) → SO4 ²¯(aq) + Mn ²+ (aq) + H*(aq) 19. During the titration, a student would expect to observe A. an increase in acidity B. a decrease in solution volume C. a decrease in the electrical conductivity D. an increase in the intensity of the purple colour