A 0.325-g sample of sulfur was burned in an excess of oxygen in the presence of a platinum catalyst. The final product of this combustion was then dissolved in water to give 1.000 L of solution. To this solution was added 75.6 mL of 0.1028 M aqueous BaCl2, resulting in a white precipitate. This precipitate was filtered off, dried, and weighed. What was the product of the combustion of sulfur in excess oxygen? What was the solution obtained by dissolving this product in water? What was the white precipitate? What was the mass of this dried precipitate?