Saccharin (C7H5NO3S) is sometimes dispensed in tablet form. Nine tablets with total mass of 0.5512 g were dissolved in water. This solution was then oxidized to convert all the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride solution. The mass of BaSO4 obtained was 0.5088 g. What is the average mass of saccharin per tablet