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Question

A solution contains both 0.015 M Mn²⁺ and 0.015 M Ni²⁺. If K₂CO₃ is added dropwise to the solution, what is the molarity of CO₃²^– when the second cation starts to precipitate? (K_sp MnCO₃= 2.24×10^–11, K_sp NiCO₃ = 1.42×10^–7)

Accepted Answer

9.5×10^–6 M CO₃^2–

Answer

2.3×10^–4 M CO₃^2–

Answer

1.5×10^–9 M CO₃^2–

Answer

9.0×10^–4 M CO₃^2–

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A solution contains both 0.015 M Mn²⁺ and 0.015 M Ni²⁺. If K₂CO₃ is added dropwise to the solution, what is the molarity of CO₃²^– when the second cation starts to precipitate? (K_sp MnCO₃= 2.24×10^–11, K_sp NiCO₃ = 1.42×10^–7)

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A solution contains both 0.015 M Mn2+ and 0.015 M Ni2+. If K2CO3 is added dropwise to the solution, what is the molarity of CO32– when the second cation starts to precipitate? (Ksp MnCO3 = 2.24×10–11, Ksp NiCO3 = 1.42×10–7)

A solution contains both 0.015 M Mn²⁺ and 0.015 M Ni²⁺. If K₂CO₃ is added dropwise to the solution, what is the molarity of CO₃²^– when the second cation starts to precipitate? (K_sp MnCO₃= 2.24×10^–11, K_sp NiCO₃ = 1.42×10^–7)