Solution: A sample of iron ore weighing 0.2792 g was
Chapter 18, Problem 18.7b(choose chapter or problem)
A sample of iron ore weighing 0.2792 g was dissolved in an excess of a dilute acid solution. All the iron was first converted to Fe(II) ions. The solution then required 23.30 mL of 0.0194 M KMnO4 for oxidation to Fe(III) ions. Calculate the percent by mass of iron in the ore
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