Silver, for example, will dissolve in hydrochloric acid, or HCl, to form silver chloride, or AgCl. Silver chloride, however, is insoluble in water, which means a white solid of AgCl crystals will form in the resulting solution.
Is AgCl soluble in HCl?
It has been found that the AgCl would readily dissolve in concentrated HCl solution forming AgCln 1−n complexes, as reported by Zelyanskii et al., and the solubility of AgCl increased about 29 times from 0.925 mmol L −1 in 2 M HCl to 26.9 mmol L −1 in 10 M HCl.
What happens when HCl is added to AgCl?
If any lead ion is present, addition of cold HCl solution to the liquid will cause white lead chloride to precipitate. The formation of these complex ions lowers the concentration of free silver ion, allowing precipitated silver chloride to dissolve: AgCl(s) + x NH3(aq) -> Ag(NH3)x+(aq) + Cl-(aq) ; x = 1 to 2 .
