3. A solution contains 1.694 mg of CoSo. (155.0 g/mol) per milliliter. a. Calculate the volume of 0.08640 M EDTA needed to titrate a 25.00-mL aliquot of this solution. b. Calculate the volume of 0.009450 M Zn²- needed to titrate the excess reagent after addition of 50.00 mL of 0.008640 M EDTA to a 25.00 mL aliquot of this solution. c. Calculate the volume of 0.008640 M EDTA needed to titrate the Zn? displaced by Co2 following addition of an unmeasured excess of ZNEDTA² to a 25.00-mL aliquot of the Coso, solution. The reaction is Co2- + ZNEDTA? → Zn²+ + COEDTA²-
3. A solution contains 1.694 mg of CoSo. (155.0 g/mol) per milliliter. a. Calculate the volume of 0.08640 M EDTA needed to titrate a 25.00-mL aliquot of this solution. b. Calculate the volume of 0.009450 M Zn²- needed to titrate the excess reagent after addition of 50.00 mL of 0.008640 M EDTA to a 25.00 mL aliquot of this solution. c. Calculate the volume of 0.008640 M EDTA needed to titrate the Zn? displaced by Co2 following addition of an unmeasured excess of ZNEDTA² to a 25.00-mL aliquot of the Coso, solution. The reaction is Co2- + ZNEDTA? → Zn²+ + COEDTA²-
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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Transcribed Image Text:3. A solution contains 1.694 mg of Coso, (155.0 g/moal) per milliliter.
Calculate the volume of 0.08640 M EDTA needed to titrate a 25.00-ml aliquot of this
a.
solution.
b. Calculate the volume of 0.009450 M Zn2- needed to titrate the excess reagent after
addition of 50.00 mL of 0.008640 M EDTA to a 25.00 mL aliquot of this solution.
c. Calculate the volume of 0.008640 M EDTA needed to titrate the Zn2+ displaced by Co2
following addition of an unmeasured excess of ZNEDTA2 to a 25.00-ml aliquot of the
Coso, solution. The reaction is
Co2- + ZNEDTA? + Zn2+ + COEDTA2-
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