試題詳解

2. A 0.8715 g sample of sorbic acid, a compound first obtained from the berries of a certain ash tree, is burned completely in oxygen to give 2.053 g of carbon dioxide and 0.5601 g of water. The empirical formula of sorbic acid is
(A)CH₂O
(B).C₃H₄O
(C)CH₄O₃
(D)C₃H₄O₂
(E)CH₄O₂