問題詳情
41. 以 0.100 M NaOH(aq)滴定10.0 mL 0.100 M H3PO4(aq)的滴定曲線圖如右：估算 H3PO4的pKa2值為何？ 
(A)7.2
(B)4.8
(C)9.8
(D)2.2。
(A)7.2
(B)4.8
(C)9.8
(D)2.2。
參考答案
答案：A
難度：困難0.2
統計：A(1),B(0),C(4),D(0),E(0)
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