题目内容
(请给出正确答案)
[主观题]
测定水的总硬度时,吸取水样100.00mL,以EBT为指示剂,在pH=10的氨缓冲溶液中,用0.01000mol/L的EDTA标准溶液滴
定至终点时用去2.14mL。计算水的硬度(以CaO计,用mg/L表示)。
提问人:网友anonymity
发布时间:2022-01-06
A.85.1mg/L
B.8.51mg/L
C.851.3mg/L
D.0.85mg/L
A.3.00 mg/L
B.30.03mg/L
C.300.30 mg/L
D.0.30 mg/L
A.20mg/L
B.40mg/L
C.60mg/L
D.80mg/L
A.20mg/L
B.40mg/L
C.60mg/L
D.80mg/L
A.20mg/L
B.40mg/L
C.60mg/L
D.80mg/L
A.20mg/L
B.40mg/L
C.60mg/L
D.80mg/L
A.20.02mg/L
B.40.04mg/L
C.60.06mg/L
D.80.07mg/L
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