Question: 3. What is the main reason that DC Polarography cannot be used for quantitative analyses of solutions diluted more than about 5.0x106 M and

3. What is the main reason that DC Polarography cannot be used

3. What is the main reason that DC Polarography cannot be used for quantitative analyses of solutions diluted more than about 5.0x106 M and how was this limitation circumvented? 4. What will be the concentration of nickel(II) ions in a titration of 25.0 mL and 0.020 M nickel (II) solution at pH 8 if equivalent amount of 0.040 M EDTA is used in this titration (Kf= 2.51x1018).

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