Consider the reaction

YZ(s) ⇌ Y(aq) + Z(aq)

at equilibrium. If Ksp < [Y][Z], precipitation occurs.

The reaction quotient, Q, is also equal to [Y][Z]. Q is equal to Ksp only at equilibrium. When Q is less than Ksp, the solution is unsaturated; when Q is greater than Ksp the solution is supersaturated and precipitation could occur.

a. Enter the Ksp expression for A _{2}B_{3}(s) in terms of [A] and [B].

b. Enter the Ksp expression for AC _{4}(s) in terms of [A] and [C].

Express your answer in terms of [A] and [C].

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