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Precipitation calculations

  1. Mar 17, 2008 #1
    Help please!

    Here's the question I'm having problems with:

    The solubility product of calcium hydroxide, Ca(OH)2, is 7.9 x 10^-6 at 25 degrees celcius. Will a precipitate form when 100mL of 0.10 mol/L of CaCl2 solution and 50.0 mL of 0.070 mol/L of NaOH solution are combined?


    Do I need to find the solubility product for CaCl2 and NaOH before I can determine if a precipitate will form when they're added to Ca(OH)2. Any help will be greatful. I don't even know if I'm on the right track or not.

    Thanks
     
  2. jcsd
  3. Mar 17, 2008 #2

    chemisttree

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    Assume that CaCl2 and NaOH are both soluble at the specified concentrations.
     
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