The antacid TUMS contains calcium carbonate, CaCO3, as its active ingredient. A student added a 1.310g TUMS tablet to a beaker that contained 20mL of 5% vinegar and 15mL of water. Before the tablet was added to the beaker, the mass of the beaker with the water and vinegar solution was 245.605g. When the reaction was complete, the mass of the beaker and its contents was 246.666g. How many grams of CaCO3 were in the TUMS tablet? Assume CaCO3 was the limiting reactant in the reaction. The molar mass of CO2 is 44.009g/mol and the molar mass of CaCO3 is 100.086g/mol. mass of CaCO3 : What was the mass percent (%m/m) of CaCO3 in the 1.310g TUMS tablet? %m/m=