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Complex ions form from metal cation + ligands; stability described by formation constant K_f (larger K_f = stronger complex).
Guia passo a passo
- 1Input metal ion, ligands, and stability constants
- 2Calculate complex formation extent
- 3Determine free metal concentration
Exemplos resolvidos
Entrada
[Cu(NH₃)₄]²⁺: K_f ≈ 10¹³ (very stable)
Resultado
Even at high pH, ammonia prevents Cu²⁺ precipitation
Erros comuns a evitar
- ✕Not accounting for overall K_f
- ✕Neglecting multi-step formation
Perguntas frequentes
How does complexation affect solubility?
Forms complex more soluble than precipitate; common use to dissolve otherwise insoluble salts.
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