Subject: Chemistry
Book: General Chemistry
Complex ion formation can increase solubility of certain salts by consuming free ions. For instance, the formation of [Ag(NH3)2]+ reduces the concentration of free Ag+ in solution, allowing more AgCl to dissolve. Formation constants (Kf) and dissociation constants (Kd) govern these equilibria. Understanding complexation is pivotal in analytical techniques (e.g., silver-ammonia complex in Tollen’s test) and metal ion extractions.
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