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

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

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

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)

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:

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.