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A solution contains 0.2 M Ba2+ and 0.2 M Ca2+. Which of the following CrO42– concentrations will precipitate as much Ba2+ as possible without precipitating any CaCrO4? (The Ksp of BaCrO4 = ~1 × 10-10 and the Ksp of CaCrO4 = ~7 × 10−4.)

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A solution contains 0.2 M Ba2+ and 0.2 M Ca2+. Which of the following CrO42– concentrations will precipitate as much Ba2+ as possible without precipitating any CaCrO4? (The Ksp of BaCrO4 = ~1 × 10-10 and the Ksp of CaCrO4 = ~7 × 10−4.)






 
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