what mass of carbon should be produced if the tums were pure calcium carbonate? This is theoretical yeild. Equation: CaCO3+2HCl->H2O+CaCl2+CO2 mass of 24 well plate/pipette with acid: 53.28g mass of tums with well plate and pipette with acid: 53.35g nass of tums: 0.07g mass of well plate, pipette and products: 53.34g mass lost is mass of Co2 los: 0.01g