Titration of Ca2+ and Mg2+ in a 50.00 mL sample of hard water required 23.65 mL of 0.01205 M EDTA. A second 50.00 mL aliquot was made strongly basic with NaOH to precipitate Mg2+ as Mg(OH)2 , filtered, and titrated with 14.53 mL of same EDTA solution. Calculate the ff: a.)The total hardness of water sample. b.)Concentration in ppm CaCO3 in the sample. c.)Concentration in ppm MgCO3 in the sample
Titration of Ca2+ and Mg2+ in a 50.00 mL sample of hard water required 23.65 mL of 0.01205 M EDTA. A second 50.00 mL aliquot was made strongly basic with NaOH to precipitate Mg2+ as Mg(OH)2 , filtered, and titrated with 14.53 mL of same EDTA solution. Calculate the ff: a.)The total hardness of water sample. b.)Concentration in ppm CaCO3 in the sample. c.)Concentration in ppm MgCO3 in the sample
Chapter17: Complexation And Precipitation Reactions And Titrations
Section: Chapter Questions
Problem 17.35QAP
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Titration of Ca2+ and Mg2+ in a 50.00 mL sample of hard water required 23.65 mL of 0.01205 M EDTA. A second 50.00 mL aliquot was made strongly basic with NaOH to precipitate Mg2+ as Mg(OH)2 , filtered, and titrated with 14.53 mL of same EDTA solution. Calculate the ff: a.)The total hardness of water sample. b.)Concentration in ppm CaCO3 in the sample. c.)Concentration in ppm MgCO3 in the sample
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