Procedure for calculations on equilibria

The first stage in any calculation requires writing down the following  

These points are relevant to any equilibrium whether it be for a weak acid, a buffer solution, formation of an ion pair or a solubility problem. It will become clear that this procedure will be used time and time again in this book. 

The chapter ends with a reassessment and rigorous derivation of the pH of a solution of a weak acid or base where no approximations are made. This section can be ignored on a first reading, and only studied when a full assimilation of the earlier material has been achieved. 

An Introduction to Aqueous Electrolyte Solutions. By Margaret Robson Wright 2007 John Wiley Sons Ltd ISBN 978-0-470-84293-5 (cloth) ISBN 978-0-470-84294-2 (paper) 

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