問題詳情
19. Two drops of indicator HIn (Ka =
), where HIn is yellow and In- is blue, are placed in 100.0 mL of 0.10 M HCl. Thesolution is titrated with 0.10 M NaOH. At what pH will the color change (yellow to greenish yellow) occur?
(A) 7.0
(B) 8.5
(C) 9.0
(D) 7.5
(E) 8.0
參考答案
答案：E
難度：計算中-1
書單：沒有書單，新增