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...Terms used in titration ph pka indicator end point equivalent units of concentrations curves is a measure hydrogen ion concentration the acidity or alkalinity solution aqueous solutions at c with less than seven are acidic while those greater basic alkaline level defined as neutral because ho equals oh pure water pk and k ka value to describe tendency compounds ions dissociate also called dissociation constant ionization acid definition where b conjugate base hb from can be calculated equation log equivalence stoichiometric chemical reaction which an added titrant stoichiometrically equal number moles substance known analyte present sample smallest amount that sufficient fully neutralize react some cases there multiple points multiples first such diprotic endpoint related but not same refers changes color colorimetric this response change e g phenolphthalein depending on redox indicators frequently drop start when has been reached approximation...