Which of the following statements regardingcomplexometric titrations is incorrect ?a4 value is proportional to the pH value.The larger the formation constant for the EDTA-metalcomplex, the sharperthe end point.EDTA is a hexaprotic acid.In the pH range 3-10 the predominant species are H2Y2-and HY3-The higher the ammonia concentration, the less sharperthe end point for theEDTA-Zn2+ complex.

Answered: Which of the following statements…

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Chemistry

Which of the following statements regarding complexometric titrations is incorrect ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Which of the following statements regarding
complexometric titrations is incorrect ?
a4 value is proportional to the pH value.
The larger the formation constant for the EDTA-metal
complex, the sharper
the end point.
EDTA is a hexaprotic acid.
In the pH range 3-10 the predominant species are H2Y2-
and HY3-
The higher the ammonia concentration, the less sharper
the end point for the
EDTA-Zn2+ complex.

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