Selective Percipitation: Consider the reaction at equilibrium. If K sp<[Y][Z], p

Question

Selective Percipitation:

Consider the reaction

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.

Q1: Enter the Ksp expression for A2B3(s) in terms of [A] and [B]. (Express your answer in terms of [A] and [B], for example, [A]*[B]^2.)

Q2: Enter the Ksp expression for AC4(s) in terms of [A] and [C]. (Express your answer in terms of [A] and [C], for example, [X]*[Y]^2.)

Explanation / Answer

Q1.

Ksp for A2B3

A2B3 <--> 2A+3 + 3B-2

Ksp = [A+3]^2[B-2]^3

Q3

for AC4(S) <-> A+4 + 4C-

so..

Ksp = [A+4][C-]^4

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