Which of the following statements regarding complexometric titrations is incorrect O The lower the formation constant for the EDTA-metal complex, the sharper the endpoint O The higher the ammonia concentration, the sharper the end point for the EDTA-Ca2+ complex. EDTA Contains two basic nitro gen

Which of the following statements regarding complexometric titrations is incorrect O The lower the formation constant for the EDTA-metal complex, the sharper the endpoint O The higher the ammonia concentration, the sharper the end point for the EDTA-Ca2+ complex. EDTA Contains two basic nitro gen

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 70E

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Question

I need the answer as soon as possible

Which of the following statements
regarding complexometric titrations
is incorrect
O The lower the formation constant
for the EDTA-metal complex, the
sharper the endpoint
O The higher the ammonia
concentration, the sharper the end
point for the
EDTA-Ca2* complex.
EDTA contains two basic nitrogens
O In the pH range 3-10 the
predominant species are H2Y²¯ and
HY3-
O a4 value is proportional to the pH
value

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