Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex.

Question

In aqueous solution the Pb²⁺ ion forms a complex with four chloride anions.

Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex.

K_f = ____

Answer 1

Pb²⁺(aq) + 4Cl^-(aq) ==> [PbCl₄]^2-(aq) .. balanced equation for the formation of the complex

Kf = [PbCl₄]^2- / [Pb²⁺][Cl^-]⁴

PS. I submitted an answer to your previous question but for some unknown reason, Wyzant has it under review. I submitted an answer of [Pb²⁺] = 1.41x10^-15 M