In which of these situations is it necessary to perform an EDTA back titration instead of a direct titration? The analyte precipitates in the absence of EDTA. The formation constant of the metal-EDTA complex is small. The analyte blocks the indicator. The color of the free indicator and metal-indicator complex are too similar.

In which of these situations is it necessary to perform an EDTA back titration instead of a direct titration? The analyte precipitates in the absence of EDTA. The formation constant of the metal-EDTA complex is small. The analyte blocks the indicator. The color of the free indicator and metal-indicator complex are too similar.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 32QRT: The titration curves for two acids with the same base are shown on this graph. (a) Which is the...

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