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Equilibrium ion question

  1. Apr 5, 2010 #1
    Calculate the milligrams of metallic ion that can remain at equilibrium in a solution of Fe(OH)3 having a [OH-] = 1.0 x 10-4 mol/L and Ksp = 6.0 x 10-38.
  2. jcsd
  3. Apr 5, 2010 #2
    You're missing some important information, like the volume of solution.

    It's possible to calculate the concentration of Fe3+ from that information, but not the mass.
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