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Homework Help: Varying the concentrations of half-cells

  1. Jun 18, 2005 #1
    I'm not sure ow to do this question.

    Calculate the reduction potential of a half-cell consisting of a platinum electrode immersed in a 2.0M Fe2+ and 0.2M Fe3+ solution 25c.

    Thanks.
     
  2. jcsd
  3. Jun 19, 2005 #2
    The Nernst Equation is given by:

    [itex]
    E= E_o - \frac{0.059}{n} log \frac{N_1}{N_2}
    [/itex]

    The above half cell reaction can be written as:

    [itex]
    Fe^2^+ ------> Fe^3^+ e^_
    [/itex]


    here n=1 as you can see in the cell reaction.
     
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