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5. A student performs the procedure as directed using 0.6537 g of pure Zn. The standardized EDTA is found to have a concentration of 0.03877 M. After EDTA complexation and back titration with Zn" solution, it is found that 35.72 mL of Zn solution is needed to reach the endpoint in the flask containing Co and 35.50 mL of Zn solution is needed to reach the endpoint in the flask containing Fe. What are the concentrations of each analyte in the original unknown? Pay attention to significant figures.

5. A student performs the procedure as directed using 0.6537 g of pure Zn. The standardized EDTA is found to have a concentration of 0.03877 M. After EDTA complexation and back titration with Zn" solution, it is found that 35.72 mL of Zn solution is needed to reach the endpoint in the flask containing Co and 35.50 mL of Zn solution is needed to reach the endpoint in the flask containing Fe. What are the concentrations of each analyte in the original unknown? Pay attention to significant figures.

Chemistry
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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5. Astudent performs the procedure as directed using 0.6537 g of pure Zn. The standardized EDTA is found to have a concentration of 0.03877 M. After EDTA complexation and back titration with Zn" solution, it is found that 35.72 mL of Zn" solution is needed to reach the endpoint in the flask containing Co and 35.50 mL of Zn solution is needed to reach the endpoint in the flask containing Fe". What are the concentrations of each analyte in the original unknown? Pay attention to significant figures.
Transcribed Image Text:5. Astudent performs the procedure as directed using 0.6537 g of pure Zn. The standardized EDTA is found to have a concentration of 0.03877 M. After EDTA complexation and back titration with Zn" solution, it is found that 35.72 mL of Zn" solution is needed to reach the endpoint in the flask containing Co and 35.50 mL of Zn solution is needed to reach the endpoint in the flask containing Fe". What are the concentrations of each analyte in the original unknown? Pay attention to significant figures.
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