A 5.323 g of dried eggshell is transferred to a 250-mL beaker and dissolved in 25 mL of 6 M HCl. The mixture was filtered and transferred into a 250 mL volumetric flask and diluted to the mark. A 20.00-mL aliquot is placed in a 125-mL Erlenmeyer flask and buffered to a pH of 10. The mixture was titrated with 0.04992 M EDTA and 43.25 mL was consumed to reach the end point. Determine the amount of calcium in the eggshell as %w/w calcium carbonate.
A 5.323 g of dried eggshell is transferred to a 250-mL beaker and dissolved in 25 mL of 6 M HCl. The mixture was filtered and transferred into a 250 mL volumetric flask and diluted to the mark. A 20.00-mL aliquot is placed in a 125-mL Erlenmeyer flask and buffered to a pH of 10. The mixture was titrated with 0.04992 M EDTA and 43.25 mL was consumed to reach the end point. Determine the amount of calcium in the eggshell as %w/w calcium carbonate.
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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A 5.323 g of dried eggshell is transferred to a 250-mL beaker and dissolved in 25 mL of 6 M HCl. The mixture was filtered and transferred into a 250 mL volumetric flask and diluted to the mark. A 20.00-mL aliquot is placed in a 125-mL Erlenmeyer flask and buffered to a pH of 10. The mixture was titrated with 0.04992 M EDTA and 43.25 mL was consumed to reach the end point. Determine the amount of calcium in the eggshell as %w/w calcium carbonate.
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