Solubility is the extent to which a substance (the solute) dissolves in a given solvent. It depends largely on how well the solute can interact with the solvent: substances dissolve readily when they can form similar intermolecular forces with it. Compounds containing oxygen or nitrogen, for example, are often very soluble in water because they can form hydrogen bonds with it.

溶解度是物质(溶质)在给定溶剂中溶解的程度。它在很大程度上取决于溶质能否与溶剂良好地相互作用:当溶质能与溶剂形成相似的分子间作用力时便易于溶解。例如,含氧或含氮的化合物往往在水中很易溶,因为它们能与水形成氢键。