問題詳情

40.下列何者與水之互溶性最佳?
(A)tetrahydrofuran
(B)ethyl acetate
(C)chloroform
(D)diethyl ether

參考答案

答案:A
難度:適中0.521739
統計:A(12),B(7),C(3),D(1),E(0)

用户評論

脆脆果仁】評論

對水溶解度如下(by wiki)tetrahydrofuran:無限互溶ethyl acetate:8.3g/100mLchloroform:0.8g/100mLdiethyl ether:6.9g/100mL

夜路走太多總匯三明治】評論

To 樓上: tetrahydrofuran要特別記

王瑜】評論

感恩

張凱越】評論

Diethyl ether is a non-polar organic compound, which makes it difficult to dissolve inwater, which is a polar solution. THF (tetrahydrofuran) is not soluble in water, but miscible. Water can create hydrogen bonds with the oxygen in THF, which makes it easier for them to “play together.簡而言之,THF雖然不溶於水,但因為可以和水形成似氫鍵,所以無限混溶當然還牽扯到結構固定,促使氧原子的附近的電子不易達成平衡且較容易裸露在外...miscible: 混溶是溶質與溶劑以任意的比例混合皆可均勻溶解的現象