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Can anybody please give me a hand with this?

  • 17-05-2007 7:23pm
    #1
    Brianz
    Closed Accounts Posts: 2 ✭


    Hi,

    If anybody could help me with these problems it would be great. As part of a sample paper we were given the below questions I haven't any idea how to do them. Help much much appreciated as i only have a days study left and they might appear on the paper!!!!

    Thanks a lot!

    ______________________________________________________________________________________
    What would the equilibrium expression for the following reaction:
    N2(g) + 3H2(g)
    > 2NH3(g)
    .......................<
    ______________________________________________________________________________________
    Write the chemical half reactions for the following electrochemical reaction:

    Cu2+ (aq) + Zn (s)
    > Cu(s) + Zn2+ (aq)
    ............................<
    ______________________________________________________________________________________


Comments

  • #2
    DemocAnarchis
    Registered Users, Registered Users 2 Posts: 404 ✭✭DemocAnarchis


    Keq = [NH3]^2 / [H2]^3 * [N2]

    Zn = Zn2+ + 2e
    Cu2+ + 2e = Cu

    As far as i can recall.


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