A compound contains only Fe and O. A 0.2729 g sample of
Chapter 5, Problem 90(choose chapter or problem)
A compound contains only Fe and O. A 0.2729 g sample of the compound was dissolved in 50 mL of concentrated acid solution, reducing all the iron to ions. The resulting solution was diluted to 100 mL and then titrated with a solution. The unbalanced chemical equation for reaction between and is given below. The titration required 42.17 mL of the solution to reach the pink endpoint. What is the empirical formula of the compound? KMnO4 Mn2+1aq2 + Fe3+1aq2 1not balanced2 MnO4 -1aq2 + Fe2+1aq2
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