承上題,0.010 M苯甲酸溶液中,苯甲酸的解離百分率為何? (A)2x104 % (B)2x102% (C)0.4% (D)2% (E)4%. 3. 承上題,0.010M 苯甲酸溶液1升,加入0.2克氫氧化鈉,溶液pH值為何?
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