II. 3. Compleximetryrequired 18.75 mL 0.1357 M EDTA. A 20.00 mL sample is made strongly alkaline to precipitate magnesium as Mg(OH)2.Titration of this sample with a calcium specific indicator required 6.34 mL of the standard EDTA solution.A drinking water sample was analyzed for Mg and Ca. Titration of a 25.00 mL sample at pH 10a. Calculate the CaCO3 (FM = 100.09) titer of the EDTA.%3Dtiter =mg/mLb. Calculate ppm Ca2+ (FM = 40.08) in the water.%3DCa2+ content=mg/Lc. Calculate ppm Mg2+ (FM = 24.31) in the water.%3DMg2+ content =mg/L%3D

The objective of the question is toCalculate the titer.Calculate the concentration Calculate the…

II. 3. Compleximetry A drinking water sample was analyzed for Mg and Ca. Titration of a 25.00 mL sample at pH 10 required 18.75 mL 0.1357 M EDTA. A 20.00 mL sample is made strongly alkaline to precipitate magnesium as Mg(OH)2. Titration of this sample with a calcium specific indicator required 6.34 mL of the standard EDTA solution. a. Calculate the CaCO3 (FM = 100.09) titer of the EDTA. titer = mg/mL b. Calculate ppm Ca2+ (FM = 40.08) in the water. Ca2+ content = mg/L c. Calculate ppm Mg2+ (FM = 24.31) in the water. Mg2+ content = mg/L

II. 3. Compleximetry A drinking water sample was analyzed for Mg and Ca. Titration of a 25.00 mL sample at pH 10 required 18.75 mL 0.1357 M EDTA. A 20.00 mL sample is made strongly alkaline to precipitate magnesium as Mg(OH)2. Titration of this sample with a calcium specific indicator required 6.34 mL of the standard EDTA solution. a. Calculate the CaCO3 (FM = 100.09) titer of the EDTA. titer = mg/mL b. Calculate ppm Ca2+ (FM = 40.08) in the water. Ca2+ content = mg/L c. Calculate ppm Mg2+ (FM = 24.31) in the water. Mg2+ content = mg/L

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.35QAP

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