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 April 14th, 2010, 07:33 AM #1 Newbie   Joined: Apr 2010 Posts: 4 Thanks: 0 Titration Problem 7. The amount of iron in a meteorite was determined by a redox titration using KMnO 4 as the titrant. A 0.42811 g sample was dissolved in acid and the liberated Fe 3+ quantitatively reduced to Fe2+ . Titrating with 0.02706 M KMnO4 requires 44.99 ml to reach the end point. Determine the % w/w Fe2O3 Unbalance reaction: Fe2+ + MnO4- ? Fe3+ +Mn2+ hey guys im stumped on how to do this question, can anyone help me out? thanks
 April 15th, 2010, 02:09 AM #2 Senior Member   Joined: Apr 2008 Posts: 435 Thanks: 0 Re: Titration Problem Well, we know exactly how many moles of permanganate were required, and that seems pretty key. If only we knew the ratio of permanganate to iron was?

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