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Homework Help: Nernst Equation Applied to Half-Reactions

  1. Nov 27, 2007 #1
    [SOLVED] Nernst Equation Applied to Half-Reactions

    The Nernst equation can be applied to half-reactions.

    Calculate the reduction potential (at 25°C) of the half-cell
    Cu/Cu2+ (1.9×10-4 M).
    (The half-reaction is Cu2+ + 2e- --> Cu. E° = 0.34 V)



    0.34-[ (8.314)(298)/ (2)(96485)] * ln(1.9E-4)


    This produces an answer of 0.45 V which I am confident is
    the correct answer to this question but it says incorrect.
    Am I approaching this question wrong, or doing the
    calculations wrong?
     
  2. jcsd
  3. Nov 27, 2007 #2
    kadostan@hotmail.com

    add me i did this one already but i need help on another, maybe u can help me, and if u need any maybe i have gotten!!!:S!
     
    Last edited: Nov 27, 2007
  4. Nov 28, 2007 #3
    ^^ sent you an email
     
  5. Nov 28, 2007 #4
    nevermind...I got it. Forgot Q had to be flipped. Thanks though
     
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