試題詳解

1. 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