FIELD: analytical methods. ^ SUBSTANCE: invention concerns analytical determination of acids, acid salts, and other substances having acid reaction and reacting with alkalis, in particular titration method for use both in educational process and in industry. Method comprises weighing and dissolving in water sample of a substance, or taking measured volume of a substance followed by titration thereof using alkali titrants and pH-meter-mediated determination of equivalence point, said titrants being electrochemically activated alkaline water with pH 11.9-12.1 thereto 0.1% NaCl was added before activation. ^ EFFECT: reduced expenses on preparation of alkali solutions. ^ 7 dwg, 12 ex