An aqueous solution at room temperature is 0.25 M in both Ba²⁺ and Ca²⁺ ions. You want to separate these two ions by selective precipitation using carbonate. What is the minimum concentration of carbonate required to start the first compound precipitating? (BaCO₃ Ksp = 2.58 × 10⁻⁹ M, CaCO₃ Ksp = 3.36 × 10⁻⁹ M).
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An aqueous solution at room temperature is 0.25 M in both Ba²⁺ and Ca²⁺ ions. You want to separate these two ions by selective precipitation using carbonate. What is the minimum concentration of carbonate required to start the first compound precipitating? (BaCO₃ Ksp = 2.58 × 10⁻⁹ M, CaCO₃ Ksp = 3.36 × 10⁻⁹ M).
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