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    abbie1599's Avatar
    abbie1599 Posts: 4, Reputation: 1
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    #1

    Jul 7, 2014, 01:36 PM
    Imagine that you are a geologist trying to determine the amount of iron in the sample
    Imagine that you are a geologist trying to determine the amount of iron in the samples of rocks in a mountain side. A typical reaction used to determine the amount of iron in a sample is to combine it in a reaction with permanganate ion, MnO4-, with Fe2+ in an acidic solution. The skeleton reaction is: MnO4-(aq) + Fe2+(aq) à Mn2+(aq) + Fe3+(aq)

    Write the half reactions for this reaction.
    Write the balanced equation for this reaction.
    Cat1864's Avatar
    Cat1864 Posts: 8,007, Reputation: 3687
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    #2

    Jul 7, 2014, 01:48 PM
    abbie, to better be able to help you we need to know where you are having problems. Please show your work and/or explain what help you need.
    abbie1599's Avatar
    abbie1599 Posts: 4, Reputation: 1
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    #3

    Jul 7, 2014, 03:00 PM
    5Fe2+(aq) 5Fe3+(aq) + 5e- MnO4-(aq) + 8H+(aq) + 5e- Mn2+(aq) + 4H2O ------------------------------------------------------------ 5Fe2+(aq) + MnO4-(aq) + 8H+(aq) 5Fe3+(aq) + Mn2+(aq) + 4H2O
    This is what I got as the balanced equation can you tell me if it is correct
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