Write titration of unknown iron sample with permanganate – KMnO4 Fe2+ ? 5Fe3+ + e-MnO4- + 8H+ +5e- ? Mn2+ + 4H2OMnO4- (aq) + 8H+ (aq)+5Fe2+ (aq) ? Mn2+ (aq) + 4H2O (l) + 5Fe3+ (aq)Use the balanced equation and average titration volume of the titration of the unknown sample to find the mass of iron in the sample (Fe 55.85 g/mol and % of iron in the unknown sampleAverage titration volume: 2,55 mL
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