For the complexometric titration of Ca (II) ions inthe shell of the egg sample weighing 59.427 g, thenecessary procedures were applied to the eggshells and 100 mL sample was prepared. 1 mL wastaken from the prepared sample, diluted to 100mL, the pH was adjusted, and two drops of EBTindicator were dropped on it. The solutionprepared was titrated with 27.4mL of 0.0097 MEDTA solution. Calculate the amount of calcium inthe sample in terms of% CaC03. (Ca = 40 g / mol,CACO3 = 100g / mol)%3D

The method uses a very large molecule called EDTA which forms a complex with calcium ions. EDTA…

Answered: For the complexometric titration

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For the complexometric titration

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

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Question

For the complexometric titration of Ca (II) ions in
the shell of the egg sample weighing 59.427 g, the
necessary procedures were applied to the egg
shells and 100 mL sample was prepared. 1 mL was
taken from the prepared sample, diluted to 100
mL, the pH was adjusted, and two drops of EBT
indicator were dropped on it. The solution
prepared was titrated with 27.4mL of 0.0097 M
EDTA solution. Calculate the amount of calcium in
the sample in terms of% CaC03. (Ca = 40 g / mol,
CACO3 = 100g / mol)
%3D

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