What is the concentration of [PbCl₃]^-when PbCl₂ solid first begins to precipitate on addition of NaClsalt to a 0.5 M PbNO₃ solution?
Pb²⁺ + 3Cl^- $\rightleftharpoons$ [PbCl₃]^-
K_f = 2.4 x 10¹pK_sp(PbCl₂) = 4.77

Question

What is the concentration of [PbCl₃]^-when PbCl₂ solid first begins to precipitate on addition of NaClsalt to a 0.5 M PbNO₃ solution?
Pb²⁺ + 3Cl^-

\rightleftharpoons

[PbCl₃]^-
K_f = 2.4 x 10¹pK_sp(PbCl₂) = 4.77

Quizplus · Accepted Answer

Multi-step problem involving determination of Cl^- concentration required for PbCl₂ precipitation, then the determination of the concentration of [PbCl₃]^-.

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What Is the Concentration of [PbCl₃]^-when PbCl₂ Solid First $\rightleftharpoons$