The Common Ion Effect

The video tutorial explains the common ion effect, an application of Le Chatelier's principle, which helps predict and control precipitation in chemical equilibria. It uses examples like silver iodide and cadmium sulfide to illustrate how adding a common ion shifts equilibrium, promoting precipitation. The tutorial includes a quantitative analysis of cadmium sulfide's solubility in a cadmium bromide solution, demonstrating how the presence of a common ion reduces solubility and enhances precipitation.

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