A Solution of Potassium Permanganate Was Standardized by Titration of a Solution

question 68

Multiple Choice

A solution of potassium permanganate was standardized by titration of a solution prepared by dissolving 0.268 g of pure sodium oxalate in approximately 25 mL of distilled water.A 31.4 mL volume of titrant was required to reach the end-point.The reaction is:
2 MnO₄^- + 5 C₂O₄^2- + 16 H⁺ → 2 Mn²⁺ + 10 CO₂ + 8 H₂O
What is the molarity of MnO₄^-?

• A)0.0174 M
• B)0.0255 M
• C)0.0348 M
• D)0.0637 M
• E)0.159 M

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