CH-1020 Chapter 15: Ch 15 Aqueous Equilibria
Document Summary
Acid-base properties can be predicted from the structure of the compound. The direction in which an acid base equilibrium lies is on the side of the weakest acid and the weakest base. Identify characteristic properties of acids and bases in terms of br nsted-lowry. Identify common strong and weak acids and bases. Calculate pka for a weak acid and recognize trends in acid strength based on pka. Predict that a strong acid will have a very weak conjugate base (and vice versa). Write the equilibrium constant expression for the dissociation of a weak acid. Determine the ka for a weak acid given ph and concentration. Determine ph for a weak acid using its ka and the initial concentration. Determine the percent dissociation of a weak acid from the initial concentration and the ka. Recognize that polyprotic acids have more than one ka. Explain the relative strength of each of the acids formed by a polyprotic acid.