A CHM 125 student performed the "Redox Titration" procedure as given in the laboratory manual. In this experiment, the titrant solution of potassium permanganate (KMNO4) was used to determine the percentage of sodium oxalate (Na,C2O4) in an unknown sample. The net ionic equation for the titration carried out was: 2MNO4 (aq) + 5C207(aq) + 16H*(aq) → 2Mn²*(aq) + 10CO2(g) + 8H2O(1) The data provided in the table below was acquired. Complete the table and determine the percent of sodium oxalate in the unknown sample based on this one titration. Molarity of KMNO4 Titrant Solution: 0.0203 M Trial 1 Weight of Oxalate Unknown 0.954 g Starting Buret Reading: 0.65 mL 197 Ending Buret Reading: 34.85 mL permanganate s order to use 35.00 mL of Titrant Used: mmol of MnO4 mmol of C20, Weight of NazC204 in Unknown: Percent of NazC204 in Unknown:

A CHM 125 student performed the "Redox Titration" procedure as given in the laboratory manual. In this experiment, the titrant solution of potassium permanganate (KMNO4) was used to determine the percentage of sodium oxalate (Na,C2O4) in an unknown sample. The net ionic equation for the titration carried out was: 2MNO4 (aq) + 5C207(aq) + 16H(aq) → 2Mn²(aq) + 10CO2(g) + 8H2O(1) The data provided in the table below was acquired. Complete the table and determine the percent of sodium oxalate in the unknown sample based on this one titration. Molarity of KMNO4 Titrant Solution: 0.0203 M Trial 1 Weight of Oxalate Unknown 0.954 g Starting Buret Reading: 0.65 mL 197 Ending Buret Reading: 34.85 mL permanganate s order to use 35.00 mL of Titrant Used: mmol of MnO4 mmol of C20, Weight of NazC204 in Unknown: Percent of NazC204 in Unknown:

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.103QE

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