Water samples near the Sangonomiya Shrine was titrated against 0.01000 M EDTA to test its water hardness. A 50.00-mL aliquot was treated with NaOH and used 13.50 mL of EDTA to reach its end point. A second 50.00-mL aliquot was buffered to pH 10.00 and needed 24.70 mL of EDTA to reach its end point. Calculate the following: a. Total hardness (ppm CaCO3). b. Calcium hardness (ppm CaCO3). c. Magnesium hardness (ppm MgCO3).

Water samples near the Sangonomiya Shrine was titrated against 0.01000 M EDTA to test its water hardness. A 50.00-mL aliquot was treated with NaOH and used 13.50 mL of EDTA to reach its end point. A second 50.00-mL aliquot was buffered to pH 10.00 and needed 24.70 mL of EDTA to reach its end point. Calculate the following: a. Total hardness (ppm CaCO3). b. Calcium hardness (ppm CaCO3). c. Magnesium hardness (ppm MgCO3).

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.20QAP

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