Q2// (A) Calculate the number of meq. involved in a titration that required 15.4 ml of 0.3N KMNO4 solution? (B) 10 ml of EDTA standard solution (0.0704 M) was added to containing Zirconium Zr*. After completion of the reaction, the excess amount of EDTA was titrated by back titration using standard Bismuth Bi*3 solution (0.0704 M). If the volume of Bismuth at the equivalence point is 3.72 ml, calculate the number of millimoles of Zirconium, then calculate its concentration in mg.

Q2// (A) Calculate the number of meq. involved in a titration that required 15.4 ml of 0.3N KMNO4 solution? (B) 10 ml of EDTA standard solution (0.0704 M) was added to containing Zirconium Zr. After completion of the reaction, the excess amount of EDTA was titrated by back titration using standard Bismuth Bi3 solution (0.0704 M). If the volume of Bismuth at the equivalence point is 3.72 ml, calculate the number of millimoles of Zirconium, then calculate its concentration in mg.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Hh.88.
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DATA AND RESULTS: Titration Data (Standardization of EDTA) Example II Mass, g Caco, 0.0250 0.0251 0.0246 0.0254 Final reading, mL 25.00 24.91 24.87 25.31 Initial Reading, mL 0.00 0.02 0.02 0.02 Volume, mL EDTA 25.00 Molarity of EDTA, M 0.009992 B. Analysis Data Example II Volume of Sample, mL 25.00 24.90 25.10 25.0 Final reading, mL 27.46 25.08 25.06 24.99 Initial Reading, mL 0.00 0.02 0.02 0.02 Volume of EDTA, mL 27.46 Molarity of EDTA, M 0.009992 Ca" concentration, ppm 440 STATISTICAL EVALUATION OF RESULTS Standardization of EDTA Mean, M EDTA Median, M EDTA Standard Deviation Ci for u at 95% Prob. Level Reported value: M EDTA Ca" Concentration Mean, Ca" ppm Median, Ca" ppm Standard deviation Cl for u at 95% Prob. Level Reported value: Ca" ppm
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