1) Samples containing iron(II) ion can be titrated with solutions ion under acidic conditions. Cr₂O72- +6Fe2+ + 14H+ → 2Cr³+ + 6Fe³+ + 7H₂O (a) Which ion is oxidized in this reaction? (b) Which ion is the reducing agent in this reaction? (c) If a 1.916 g sample containing iron(II) sulfate is dissolved and requires 34.1 mL of 0.0100 M K₂Cr2O7 solution to titrate it, what is the percent iron(II) sulfate in the sample? Iran (I) Surfte 1-9169 of Impur

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