The reaction is given below where a 24.6-mL volume of a hydrochloric acid solution reacts completely with a solid sample of magnesium carbonate, producing191 mL of CO2 that is collected at 24.0°C and 738 torr total pressure.
2 HCl(aq) +MgCO3(s) → CO2(g) +H2O(l) + MgCl2(aq)
What is the molarity of the HCl solution?