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Solubility Constant vs Aqueous solubility

  1. Jun 8, 2010 #1
    1. The problem statement, all variables and given/known data

    The solubility constant for AgBr in water is 5.2 x 10-13. What is the aqueous solubility of AgBr?

    2. Relevant equations

    Ksp= [Ag+][Br-]

    AgBr is a constant and therefore is not part of the Ksp.


    3. The attempt at a solution

    NVM solved problem. Should use ICE table.
     
  2. jcsd
  3. Jun 9, 2010 #2

    Borek

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    Staff: Mentor

    Just calculate concentration of Ag+ in the saturated solution - remembering that [Ag+] = [Br-] - and you are done. That's not much different from using ICE table, but ICE table as such is an overkill here.

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    methods
     
  4. Jun 9, 2010 #3
    Thanks for the help borek. It should be 5.2 x 10-13= x^2.

    x= 7.2 x 10^-7
     
  5. Jun 9, 2010 #4

    Borek

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    Staff: Mentor

    Exactly.

    It doesn't differ from what you should get using ICE table, so it is not an error to use it, just no need for elaborate approach. Save it for difficult problems :wink:

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    methods
     
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