6.2 Forming and dissolving of precipitates 6.2.1 The solubility product rule -6.2.2 The common ion effect and salt effect -6.2.3 The effect of pH on solubility -6.2.4 The effect of complex ions formation on solubility § 6.2 Forming and dissolving of precipitates 6.2.4 The effect of complex ions formation on solubility 6.2.3 The effect of pH on solubility 6.2.2 The common ion effect and salt effect 6.2.1 The solubility product rule