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

    Apr 21, 2009, 08:22 AM
    General Chemistry equilibrium
    An acid-base equilibrium system is created by dissolving 0.10 mol HF in water to a volume of 1.0 L. What is the effect of adding 0.050mol F(aq) to this solution?
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Apr 21, 2009, 08:55 AM

    The equation for the equilibrium is



    You know the concentration of HF. You haven't given me any Ka for HF so you can't solve this quantitatively.

    Remember that



    So, from that you can calculate the concentration of [F-] and figure out what happens to the equilibrium (it will drive it to the left).
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