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[主观题]
用EDTA测定水样的硬度值,取此水样100mL,用EDTA溶液滴定至终点,消耗EDTAc(1/2Ca2++1/2Mg2+)=0.0010mol/L的EDTA溶液1.42mL,计算被测水样的硬度值?
提问人:网友lixin080108
发布时间:2022-01-25
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c(1/2Ca2++1/2Mg2+)=0.001031.42÷1003106=14.2umol/L
被测水样的c(1/2Ca2++1/2Mg2+)为14.2umol/L
被测水样的c(1/2Ca2++1/2Mg2+)为14.2umol/L
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