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Determine the molarity of the given KMnO...

Determine the molarity of the given `KMnO_(4)` solution by titrating it against `(M)/(10)` oxalic acid solution.

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Determine the volume of M/10 KMnO_4 solution required to react completely with 25.0 mL of M/5 oxalic acid solution.

10.0 mL of 0.05 M KMnO4 solution was consumed in a titration with 10.0 mL of given oxalic acid dihydrate solution. The strength of given oxalic acid solution is ........ xx 10 ^(-2) g // L. (Round off to the nearest integer)

Knowledge Check

  • Which indicator should be used in titrating KOH against oxalic acid ?

    A
    Litmus
    B
    Methyl orange
    C
    Methyl red
    D
    Phenolphthalein.

  • A 0.46 g sample of As_(2)O_(3) required 25.0 " mL of " KMnO_(4) solution for its titration. The molarity of KMnO_(4) solution for its titration. The molarity of KMnO_(3) solution is

    A
    0.016
    B
    0.074
    C
    0.032
    D
    0.128

  • An impure sample of sodium oxalate (Na_(2) C_(2)0=O_(4)) weighing 0.20 g is dissolved in an aqueous solution of H_(2)SO_(4) and the solution is titrated at 70^(@)C , requiring 45 ml 0.02 M KMnO_(4) solution. The endpoint is overrun, and the back titration is carried out with 10 ml of 0.1 M oxalic acid solution. Find the per cent purity of Na_(2)C_(2)O_(4) in the sample.

    A
    75
    B
    83.75
    C
    90.25
    D
    None of these

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    KMnO_(4) solution is to be standardised by titration against As_(2)O_(3) (s) . A 0.1097 g sample of As_(2)O_(3) requires 26.10 mL of the KMnO_(4) solution for its titration. What are the molarity and normality of the KMnO_(4) solution (Mol. Wt. of As=75)

    An impure sample of sodium oxalate (Na_(2)C_(2)O_(4)) weighing 0.20 g is dissolved in aqueous solution of H_(2)SO_(4) and solution is titrated at 70^(@) C, requiring 45 mL of 0.02 M KMnO_(4) solution. The end point is overrun, and back titration in carried out with 10 mL of 0.1 M oxalic acid solution. Find the percentage purity of Na_(2)C_(2)O_(4) in sample.

    A 0.56 g sample of limestones is dissolved in acid and the calcium is precipitated as calcium oxalate .The precipitate as calcium oxalate the prepcipate is filtered washed with water and dissolved in dil H_(2)SO_(4) The solution required 40ml of 0.25NKmnO_(4) solutions for titration .Calculate percentage of 0.25N KMnO_(4) solution for titration .Calculate of 0.25N KMnO_(4) solution for titration ,Calculate percentage of CaO in limestone sample.

    1.355 g of pyrolusite sample are added to 50 mL of 1 N oxalic acid solution containing sulphuric acid. After the reaction is completed, the contents are transferred to a measuring flask and the volume made up to 200 mL. 20 mL of this solution is titrated against KMnO_(4) solution whose strength is 2 g//L and 31.6 mL of KMnO_(4) solution are required. Calculate the percentage purity in the given sample of pyrolusite.

    An impure sample of sodium oxalate (Na_(2)C_(2)O_(4) weighing 0.20 g is dissolved in aqueous solution of H_(2)SO_94) and solution is titrated at 70^(@)C ,requiring 45 mL of 0.02 M KMnO_(4) solution. The end point is overrun, and back titration in carried out with 10 mL of 0.1 M oxalic acid solution.Find the purity of Na_(2)C_(2)O_(4) in sample:

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