Question

What titrant and indicator is used in chloride determination?

Answer 1

Typically, it is used to determine the amount of chloride present in a sample. The sample solution is titrated against a solution of silver nitrate of known concentration. Chloride ions react with silver(I) ions to give the insoluble silver chloride: Ag+ (aq) + Cl− (aq) → AgCl (s) (K = 5.88 × 109)