Redox reaction and titration
A sample of Iron ore weighing 0.4086g was dissolved in an acid and then reduced to Fe²+ Ion. This solution was titrated with 0.0215moldm-³ K2C2O7 solution. If the titration required 23.80cm³ of K2Cr2O7 solution what was the percentage of iron in the ore? (Fe=56)
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