Cadmium sulfide dissociates slightly in an aqueous solution as follows: CdS(s) Cd 2+ (aq) + S

Question:

Cadmium sulfide dissociates slightly in an aqueous solution as follows: 

CdS(s) ⇄ Cd2+ (aq) + S2–(aq) 

Predict the direction of equilibrium shift for each of the following stresses:

(a) Increase [Cd2+]

(b) Increase [S2]

(c) Decrease [Cd2+]

(d) Decrease [S2]

(e) Add solid CdS

(f) Add solid Cd(NO3)2

(g) Add solid NaNO3

(h) Add H+.

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