titration

अज्ञात सांद्रता वाले घोल की मापी मात्रा दूसरे घोल के ज्ञात आयतन में पूर्ण अभिक्रिया तक मिलाकर उसकी सांद्रता निर्धारित करना

a measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete; the concentration of the unknown solution (the titer) can then be calculated