Learning objectives
Apply Le Châtelier's principle to predict the effect of changing concentration, pressure by volume change, or temperature on the position of an equilibrium, and explain why a catalyst does not shift it
Explain why only a temperature change alters the value of K, using the sign of ΔH to predict whether K increases or decreases when temperature rises
Write the solubility product expression for a sparingly soluble salt and convert between Ksp and molar solubility
Predict whether a precipitate forms on mixing two solutions by comparing Q with Ksp, and calculate the concentration required to just begin precipitation
Explain the common-ion effect and the effect of pH on the solubility of salts of weak acids or bases, and justify the explanation using the relevant equilibrium expression
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