Question 20 of 20 Potassium permanganate solutions used in oxidation-reduction titrations are often standardized against sodium oxalate, Na2C2O4, used as a primary standard. The reaction involved is 5C₂042 (aq) + 2MnO. (aq) + 16 H (aq) → 2Mn²+ (aq) + 8H₂O(l) + 10CO₂(g) A 0.2252 g sample of sodium oxalate is dissolved in 100 mL of acid solution, and the permanganate solution is added slowly from a buret. The endpoint is reached when 15.85 mL of the permanganate solution has been added. The molar mass of sodium oxalate is 134.00 g/mol. Calculate [MnO4], the molar concentration of the permanganate solution. 4 7 +/-

Question 20 of 20 Potassium permanganate solutions used in oxidation-reduction titrations are often standardized against sodium oxalate, Na2C2O4, used as a primary standard. The reaction involved is 5C₂042 (aq) + 2MnO. (aq) + 16 H (aq) → 2Mn²+ (aq) + 8H₂O(l) + 10CO₂(g) A 0.2252 g sample of sodium oxalate is dissolved in 100 mL of acid solution, and the permanganate solution is added slowly from a buret. The endpoint is reached when 15.85 mL of the permanganate solution has been added. The molar mass of sodium oxalate is 134.00 g/mol. Calculate [MnO4], the molar concentration of the permanganate solution. 4 7 +/-

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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