Answer 17-18. A Solution Was Prepared By Dissolving About 3.0 G Of NaH, Y, 2H, In Approximately 1 L Of Water And Standardizing Against 50.00-mL Aliquots Of 0.004423 M Mg2+. An Average Titration Of 30.27 ML Was Required. Calculate The Molar Concentration O

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Answer 17-18. A solution was prepared by dissolving about 3.0 g of NaH, Y, 2H, in approximately 1 L of water and standardizing against 50.00-mL aliquots of 0.004423 M Mg2+. An average titration of 30.27 mL was required. Calculate the molar concentration of the EDTA.
17-30. A 24-hr urine specimen was diluted to 2.000 L. After the solution was buffered to pH 10, a 10.00-ml aliquot was titrated with 23.57 mL of 0.004590 M EDTA. The calcium in a second 10.00-mL aliquot was isolated as CaC_04(5), redissolved in acid, and titrated with 10.53 mL of the EDTA solution. Assuming that 15 to 300 mg of magnesium and 50 to 400 mg of calcium per day are normal, did this specimen fall within these ranges?

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Answer 17-18. A Solution Was Prepared By Dissolving About 3.0 G Of NaH, Y, 2H, In Approximately 1 L Of Water And Standardizing Against 50.00-mL Aliquots Of 0.004423 M Mg2+. An Average Titration Of 30.27 ML Was Required. Calculate The Molar Concentration O

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