18. What is the pH at the equivalence point when 100.0 mL of 0.1 M HC7H5O2 (Ka = 6.4 × 10-5) titrate
問題詳情
18. What is the pH at the equivalence point when 100.0 mL of 0.1 M HC7H5O2 (Ka = 6.4 × 10-5) titrated by 0.10 M NaOH? (A)4.19 (B) 10.74 (C)5.96 (D) 7.89 (E)8.45