Passage III (Questions 15-22)

Applications of equilibrium constants to real life problems often confront a student with a reaction and ask what the products and their concentrations will be. These problems often seem to lie outside the examples frequently provided in texts. Our advice is to determine, however roughly, what the equilibrium constant is for a given reaction, and then either solve assuming total reaction (if Keq>>1), or, if the reaction is seen not to proceed very far, to calculate equilibrium concentrations.

The following problems combine questions about solubility with those concerning strong and weak acids.