摘要
文中通过实例讨论了计算弱酸溶液酸度近似公式和最简公式的适用范围,导出了精确计算弱酸溶液酸度的三次方程,并用浓度-pH图讨论了三个公式的使用规则。
The application range of approximate and the simplest formulae for the calculation of the acidity of solutions of weak acids is discussed in this paper through actual examples,from which the cubic equation for precise calculation of the acidity of solutions of weak acids is deducted. The requirements for the use of the three kinds of e-quations are discussed by means of C-pH diagram.
