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10. 下圖為 25 °C 時,0.10 M NaOH(aq) 滴定弱酸 HA( )20 mL 之滴定曲線,下列敘述何者正確? (A) a 點之 pH 值為 3.1 (B) b 點之 pH 值為 4.
問題詳情
10. 下圖為 25 °C 時,0.10 M NaOH(aq) 滴定弱酸 HA(
)20 mL 之滴定曲線,下列敘述何者正確?
(A) a 點之 pH 值為 3.1
(B) b 點之 pH 值為 4.2
(C) c 點之 pH 值為 7.0
(D) d 點之pH 值為 12.3
(E)此滴定過程可選用酚酞作指示劑。
參考答案
答案:A,D,E
難度:
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