Compute the molarity of KMnO4 solution if 1.0092 g of pure FAS required 25.11 mL of KMnO4 solution to reach end point in an acidic medium. An impure sample of FAS weighed 1.2352 g and it required 26.01 mL of KMnO4 solution (use molarity from Q#2) to reach end point in an acidic medium. Compute %Fe in this sample.

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