8.25 g of a samplo of iron ora (iron (m) oxido, Fo-O:] wore dissolved in concentratad hydrochloric acid and the solution dilutod to 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquirod 284 mi of a00200 M potassium dichromato(vi) solution for compioto oxidation back to iron() ions. The mass parcontogo of the ron in the ore is x (Fo=55.845 g/mol) CrO+6Fo+14H 2Cr + GFe" +7H;0
8.25 g of a samplo of iron ora (iron (m) oxido, Fo-O:] wore dissolved in concentratad hydrochloric acid and the solution dilutod to 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquirod 284 mi of a00200 M potassium dichromato(vi) solution for compioto oxidation back to iron() ions. The mass parcontogo of the ron in the ore is x (Fo=55.845 g/mol) CrO+6Fo+14H 2Cr + GFe" +7H;0
Chapter20: Applications Of Oxidation/reduction Titrations
Section: Chapter Questions
Problem 20.25QAP
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