Thiopene is a liquid compound of the elements C, H, and S. A sample of thiopene weighing 7.96 mg was burned in oxygen, giving 16.65 mg CO2. Another sample was subjected to a series of reactions that transformed all of the sulfur in the compound to barium sulfate. If 4.31 mg of the thiopene gave 11.96 mg of barium sulfate, what is the mass percent of each element in thiopene