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    DarkFlameJB's Avatar
    DarkFlameJB Posts: 2, Reputation: 1
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    #1

    Jul 22, 2012, 05:03 PM
    Chemistry concentrations
    A solution contains Sr2+ and Ba2+ ions both at a concentration of 1.25 x 10 ^-3 molL-1.
    A dilute solution of sulphuric acid is slowly added to this mixture of ions. (Assume any change in volume is insignificant.)
    Ks (BaSO4) =1x10^-10 Ks (SrSO4)=3x10^-7



    b
    (I) calclute the concentration of SO42- ions when SrSO4 begins to precipitate.


    (ii) calculate the concentration of Ba2+ when SrSO4 begins to precipitate

    thanks(:
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jul 22, 2012, 10:43 PM
    Show your attempt please. Thanks(:
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