Precipitation occurs when:
Correct answer: A. Ksp < ionic product
- A. Ksp < ionic product
- B. Ksp > ionic product
- C. Ksp = ionic product
- D. √Ksp < ionic product
Explanation
The ionic product (Qsp ) is the product of ion concentrations at any given moment, while the solubility product (Ksp ) is the value at saturation. If the ionic product exceeds the Ksp , the solution is supersaturated, and the excess solute will precipitate out until Qsp = Ksp .
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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