A student is provided with a solution containing 0.728 g of an unknown diprotic acid, H₂A, to determine the molar mass of the acid. The student performs a titration using a 0.215 M solution of KOH(aq). The balanced equation for the reaction is as follows:
H₂A(aq) + 2KOH(aq) → 2H₂O(l) + K₂A(aq)