View the step-by-step solution to:

For the reaction below, the equilibrium constant is Kc = 3.2 1010 at 25 C.

For the reaction below, the equilibrium constant is Kc = 3.2×

10−10 at 25 °C.

Pb(s) + 2 Cr3+(aq)  ⇌ Pb2+(aq) + 2 Cr2+(aq)

Excess Pb(s) is added to a solution for which the initial concentration of Cr3+(aq) is 2.0 mol L−1. What are the equilibrium concentrations of Pb2+ and Cr2+ ?


Enter values accurate to 2 significant figures. Do not include units.


[Pb2+]eq =      (0%) mol L−1  


[Cr2+]eq =      (0%) mol L−1

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