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5. If calcium sulfate and barium sulfate do not form mixed crystals (i.e. they only form...

5. If calcium sulfate and barium sulfate do not form mixed crystals (i.e. they only form 1:1 species), what is the maximum fraction of the barium ion that can be precipitated as the sulfate from a solution that is initially 0.080 M in Ba2+ and 0.100 M in Ca2+, before the precipitation of calcium sulfate starts? For BaSO4, Ksp = 1.1 x 10-10, for CaSO4, Ksp = 2.4 x 10-5

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