In order to get sharp endpoints, solutions are typically buffered at basic conditions. This also insures that: Y4-form is available. EDTA will be in a soluble form. In addition, only one !Ymust be used in calculating equivalence and over titration conditions. As with our other types of titrations, we have four regions to deal with. 0% titration
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0%, Equivalence point, Amperometric titration, sharp endpoints