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    djhunter's Avatar
    djhunter Posts: 1, Reputation: 1
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    #1

    Jun 2, 2007, 05:02 PM
    precipitation reactions
    What concentration of F- is necessary to start he precipitation of SrF2 from a saturated solution of SrSo4?
    Ksp of SrF2 is 7.9*10^-10
    Ksp of SrSO4 is 7.6*10^-7
    I do not know how to show the working for this question
    Andreas_111's Avatar
    Andreas_111 Posts: 28, Reputation: 0
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    #2

    Jun 11, 2007, 06:42 AM
    Very nice exersise
    you have 2 equations and 2 unknows. Think about it
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