問題詳情
16. 酚酞（HIn）是弱酸，其解離反應式如下：HIn 
H＋＋In－Ka＝8×10－10，其中為HIn無色、In－為粉紅色。
若兩者濃度比從90%的HIn改變至90%的In－，顏色將會產生明顯變化，試問酚酞的變色範圍為pH值為何？（log2＝0.log3＝0.48）
(A)8.10～10.10
(B)8.14～10.06
(C)8.60～9.60
(D)8.20～10.00。
參考答案
無參考答案
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