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Homework Help: [Equilibrium] Max of A in Saturated Solution B

  1. Jan 15, 2017 #1
    1. The problem statement, all variables and given/known data
    What is the maximum [CO32-] that can exist in a saturated solution of AgBr?

    2. Relevant equations
    Equilibrium Constants, ICE tables
    sqrt = square root

    3. The attempt at a solution
    Ksp = [Ag+][Br-]
    sqrt(5.4E-13) = x (Ag and Br are in equal proportion to one another)
    where x = [concentration] of Ag+

    Ksp = [Ag+]2[CO32-]
    8.5E-12 = (2(sqrt(5.4E-13)))2 [CO32-]
    [CO32-] = 3.95

    However, the key has an answer of 16 M. Multiplying my current answer by 4 gives something close, but regardless, I'm missing something in my calculations. Thanks for any help~
  2. jcsd
  3. Jan 16, 2017 #2


    User Avatar

    Staff: Mentor

    Why 2?

    16M looks wrong to me, as if it was missing a comma.
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