研究所、轉學考(插大)◆普通化學題庫下載題庫

10. A chemist needs a solution buffered at pH 5.0 and can choose from the following acids (and their sodium salts):

 Which system will work best?
(A) propanoic acid
(B) chloroacetic acid
(C) benzoic acid
(D) hypochlorous acid
(E) salicylic acid