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Write the equilibrium expression (Kc) for the following reacCon. PbCl2(s) ? Pb2+(aq) + 2Cl–(aq) Kc =...

Write the equilibrium expression (Kc) for the following reacCon.
PbCl2(s) ? Pb2+(aq) + 2Cl–(aq) Kc = ______________________
b. (6 pts) At 25˚C, a certain mass of PbCl2 was dissolved in water and the equilibrium
concentraCon of dissolved Pb2+ was measured to be 1.62 x 10–2 M. Calculate Kc for this
process. (Hint: If 1 mole of Pb2+ dissolves, how much Cl– dissolves with it?)
c. (4 pts) In ques@on 2b, the mass of solid PbCl2 added to water was not stated. Explain
why that value is not important in this equilibrium reacCon.

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