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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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1. A 0.4676-g sample of primary standard CaCO3 was dissolved in a final solution volume of 250.0 mL. A 25.00-mL aliquot of this solution was titrated with EDTA to an Eriochrome T endpoint that required 25.17 mL. Calculate the molarity of the EDTA solution. Give your answer to five places after the decimal place. 2. A 25.00 mL aliquot of a 1.000-L unknown water sample was titrated with 0.01243 M EDTA and required 14.71 mL to reach an Eriochrome T end point. Calculate the ppm Ca in the water sample. Give your answer to one places after the decima
Transcribed Image Text:1. A 0.4676-g sample of primary standard CaCO3 was dissolved in a final solution volume of 250.0 mL. A 25.00-mL aliquot of this solution was titrated with EDTA to an Eriochrome T endpoint that required 25.17 mL. Calculate the molarity of the EDTA solution. Give your answer to five places after the decimal place. 2. A 25.00 mL aliquot of a 1.000-L unknown water sample was titrated with 0.01243 M EDTA and required 14.71 mL to reach an Eriochrome T end point. Calculate the ppm Ca in the water sample. Give your answer to one places after the decima
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