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Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4– + C2O42– Mn2+ + CO2
MnO4– + Fe2+ Mn2+ + Fe3+ ?

The potassium ion is a spectator ion. You have written ionic equations (but omitted the arrows to separate the reactants from the products).

  • Chemistry -

    determination of the oxalate content in k2 cu(c2o4)2 .2h2o,

    during standardization of permanganate solution using sodium oxalate,

    can the titration between Mno4- and C2o42- at 25degree celcius be perform?

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