4. Calcium in powdered milk was determined by ashing a 1.500g sample and then titrating the calcium with EDTA solution. The volume of EDTA necessary for the titration was 12.09 mL. The EDTA was standardized by titrating 10.00 mL of a zinc solution prepared by digesting 0.6322 g of zinc metal in acid and diluting to 1.000 L. The volume of EDTA necessary for the standardization was 10.79 mL. What is the concentration of calcium in parts per million?

4. Calcium in powdered milk was determined by ashing a 1.500g sample and then titrating the calcium with EDTA solution. The volume of EDTA necessary for the titration was 12.09 mL. The EDTA was standardized by titrating 10.00 mL of a zinc solution prepared by digesting 0.6322 g of zinc metal in acid and diluting to 1.000 L. The volume of EDTA necessary for the standardization was 10.79 mL. What is the concentration of calcium in parts per million?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.37QAP

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