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Equilibrium Precipitate

  1. Jun 5, 2008 #1
    1. The problem statement, all variables and given/known data

    What is the maximum [Ca2+] that can exist with 5.2e-4 M c2O4 2- without precipitating? Ksp for CaC2O4 = 2.6e-9.

    2. Relevant equations

    Well, the Ksp and M is given, I don't know how to apply them.

    3. The attempt at a solution

    I need help because I missed the lesson.

    Thank you.
     
    Last edited: Jun 5, 2008
  2. jcsd
  3. Jun 5, 2008 #2

    Borek

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    Staff: Mentor

    Do you know Kso formula looks alike for calcium oxalate?
     
  4. Jun 5, 2008 #3
    Pardon? I don't know what you are saying.

    If you mean what it is, I don't think I'm supposed to use it since it's not a given in the question.
     
    Last edited: Jun 5, 2008
  5. Jun 5, 2008 #4
    Bump. Someone please help me.
     
  6. Jun 6, 2008 #5

    Borek

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    Staff: Mentor

    Sorry, I wrote Kso instead of Ksp - but these are the same, one stands for solubility, second for solubility product. Do you know formula for solubility product for calcium oxalate? Note that Ksp for calcium oxalate is given.
     
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