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A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, required 23.55 mL of 0.0250 M EDTA. A second 50.00 mL aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA solution. Calculate the total hardness of the water sample, express in ppm CaCO3 Calculate the concentration of CaCO3 in the sample in ppm Calculate the concentration of MgCO3 in the sample in ppm а. b. С.

A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, required 23.55 mL of 0.0250 M EDTA. A second 50.00 mL aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA solution. Calculate the total hardness of the water sample, express in ppm CaCO3 Calculate the concentration of CaCO3 in the sample in ppm Calculate the concentration of MgCO3 in the sample in ppm а. b. С.

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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3. A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, required 23.55 mL of 0.0250 M EDTA. A second 50.00 mL aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA solution. Calculate the total hardness of the water sample, express in ppm CaCO3 Calculate the concentration of CaCO3 in the sample in ppm Calculate the concentration of MgCO3 in the sample in ppm а. b. С.
Transcribed Image Text:3. A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, required 23.55 mL of 0.0250 M EDTA. A second 50.00 mL aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA solution. Calculate the total hardness of the water sample, express in ppm CaCO3 Calculate the concentration of CaCO3 in the sample in ppm Calculate the concentration of MgCO3 in the sample in ppm а. b. С.
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