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Homework Help: Water molecules in CuSO4.5H2O

  1. May 5, 2014 #1


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    1. The problem statement, all variables and given/known data
    How many water molecule in CuSO4.5H2O attached only by coordinate bond?

    3. The attempt at a solution

    Copper exists in the form of Cu2+. So, it has one vacant d-orbital. The answer should then be 1. But it's 2 :(
  2. jcsd
  3. May 6, 2014 #2
    Copper can form complexes but I don't see how the answer is 2. To my knowledge, it exists as ##[Cu(H_2O)_4]^{+2}SO_4^{2-}\cdot H_2O##. Hence, the answer should be 4.
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