What is the percent of iron in the ore
1.45 g sample of an iron ore is dissolved in acid and the iron obtained is fe2+ (aq). To titrate the solution, 21.6 mL of 0.102 M KMnO4(aq) is required. What is the percent of iron in the ore?
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Fe203 is converted into metallic Fe plus H2O(g). If the residue weighs 1.774 g, what is the weight percent of Fe2O3 in the original mixture?
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