Consider the dissolution equation of lead(II) chloride.
PbCl2 (s) ⇆ Pb2+ (aq) + 2Cl− (aq)
Suppose you add 0.2307 g of PbCl2 (s) to 50.0 mL of water. In the resulting saturated solution, you find that the concentration of Pb2+ (aq) is 0.0159 M and the concentration of Cl− (aq) is 0.0318 M.
What is the value of the equilibrium constant, Ksp, for the dissolution of PbCl2?

Respuesta :

Answer:

The solubility product of lead(II) chloride is [tex]1.61\times 10^{-5}[/tex].

Explanation:

Concentration of lead (II) ions = [tex][Pb^{2+}]=0.0159 M[/tex]

Concentration of chloride ion = [tex][Cl^-]=0.0318 M[/tex]

[tex]PbCl_2(s)\rightleftharpoons Pb^{2+}(aq)+2Cl^-(aq)[/tex]

The expression of a solubility product will be given as:

[tex]K_{sp}=[Pb^{2+}][Cl^-]^2[/tex]

[tex]=0.0159 M\times (0.0318 M)^2=1.61\times 10^{-5}[/tex]

The solubility product of lead(II) chloride is [tex]1.61\times 10^{-5}[/tex].