To analyze an iron-containing compound, you convert all the iron to Fe²⁺ in aqueous solution and then titrate the solution with standardized KMnO₄. The balanced, net ionic equation is

A 0.598-g sample of the iron-containing compound requires 22.25 mL of 0.0123 M KMnO₄ for titration to the equivalence point. What is the mass percent of iron in the sample?

Transcribed Image Text:

MnO4 (aq) + 5 Fe²+ (aq) + 8 H3O+ (aq) Mn²+ (aq) + 5 Fe³+ (aq) + 12 H₂O(l) 2+