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What will happen if CuSO4 is taken as electrolyte.Zn & Cu are two electrodes.?

  1. Jul 26, 2009 #1
    What will happen if CuSO4 is taken as electrolyte.Zn & Cu are two electrodes.??

    If we take copper sulfate as an electrolyte and zinc and copper as two electrodes.....and allow the current to flow....Wat will happen...

    Here is till where i have understood....
    When we will start current flow....then,CuSO4 will dissociate into ions of Cu2+ and SO42-....and in zinc electrode it will also dissciate to form Zn2+ and 2e-....the 2 electrons formed will jump down and reduce Cu+ to Cu metal...and so there loss of electrons in zinc and so it should become positively charged....(unlike book where it is given tht its is negatively charged,....)
    So the thing which i havent understood is ----Why zinc plate gets negatively charged even when it has lost electrons to reduce copper
     
    Last edited: Jul 26, 2009
  2. jcsd
  3. Aug 9, 2009 #2
    Re: What will happen if CuSO4 is taken as electrolyte.Zn & Cu are two electrodes.??

    CuSO4 = Cu2+ + SO42-

    Zn have 2 electrons in its last orbital so they can easily leave it. And Cu have 6 electron in its last orbital (they need 2 more electrons to get a stable form) thats why it can easily take 2 electrons !

    When you give ANODE and CATHODE connection using wire then thsose two electrons will m0ve through that wire and the flow of electron is called electricity!

    ANODE: Zn = Zn2+ + 2e

    CATHODE: Cu2+ + 2e = Cu
     
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