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A 0.4987-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.9267 g of CO2 and 0.1897 g of H2O. What is the empirical formula of the compound? A) CHO B) C2H2O C) C3H3O2 D) C6H3O2 E) C3H6O2