Determine the composition and phases present at points A and B on the Cr-Fe phase diagram.
Note Set #3 – week 5 Analytical Chemistry SOLUTIONS OF INTERMEDIATE SPECIES of DIPROTIC SYSTEMS + 2- - o Charge balance eqn. [H ] + [H A] = [A 2 + [OH ] - 2- o Mass Balance F = [H A] + [HA2] + [A ] - + 2- o HA H + A (deprotonation of intermediate) o HA + H O 2H A + OH 2 - (protonation of intermediate) TITRATION o Titration of a Strong Acid with a Weak Base o e.g.) HI + KOH H O + 2I *goes to completion* 1. Before equivalence point: pH is dependent on excess, unreacted/un-neutralize