A 2.2 gram sample of Pb₂O3 containing only inert impurities is treated with 20.0 mL of 6 N H₂SO4 and 41 mL of oxalic acid solution (containing 0.0126 grams of H₂C2O4-2 H₂O per milliliter) is added. After reaction is complete, the solution requires 20.00 mL of 0.100 N KMnO4. Calculate the purity of the sample in terms of the percentage of Pb₂O3. Balance the following chemical equations: Pb₂O3 + C₂O4²- + H+ → CO₂ + Pb²+ + H₂O

A 2.2 gram sample of Pb₂O3 containing only inert impurities is treated with 20.0 mL of 6 N H₂SO4 and 41 mL of oxalic acid solution (containing 0.0126 grams of H₂C2O4-2 H₂O per milliliter) is added. After reaction is complete, the solution requires 20.00 mL of 0.100 N KMnO4. Calculate the purity of the sample in terms of the percentage of Pb₂O3. Balance the following chemical equations: Pb₂O3 + C₂O4²- + H+ → CO₂ + Pb²+ + H₂O

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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