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Balancing Copper Reaction & Finding Products

  1. Nov 9, 2011 #1
    The purpose of this chemistry lab was to prepare/synthesize Bis(2,4-pentanedionato) Copper (II), which is also known as Cu(C5H7O2)2

    I was given the following format for a chemical equation in a lab that needs to be balanced:

    Cu2+ (aq) + 2 base-n (aq) + 2 C5H8O2 (aq) → Cu(C5H7O2)2 (s) + 2 H(base)1-n (aq)

    *The 2+ and n's are charges I'm assuming*

    My copper source was CuSO4•5H2O
    My base was NaHCO2

    So I tried plugging in my sources for the equation and this is what I got (but I know it's wrong because the sulfur atoms are missing and I'm not sure how to balance it properly)...

    CuSO4•5H2O (s) + 2 NaHCO2 (aq) + 2 C5H8O2 (aq) → Cu(C5H7O2)2 (s) + 2 H(NaHCO2) (aq)

    Can someone please tell me how I determine where the sulfur is placed and help me balance this?
  2. jcsd
  3. Nov 10, 2011 #2


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    Staff: Mentor

    Your reaction equation should be net ionic - so you don't have to care about sulfate.
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