10.0 g of calcium carbonate is placed into a hydrochloric acid solution. All of the solid reacts with no acid remaining in solution. When the carbon dioxide is produced, 30.0% of the gas dissolves. The-container has a total volume of exactly 800.0 mL, and has exactly 200.0 mL of solution when the reaction is finished. What is molarity of CO2 in solution? What is the final pressure of the gaseous product in the container? Ignore any pressure from air that was in the container before the reaction, and assume that the system was allowed to return to 25°C. The balanced equation is: Caco, (s) + 2 HCl(aq) → CaCl2 (aq) + H2O + CO, (9)