8 g aspirin tablet 0.5130 27 (acetylsalicylic acid) which was dissolved in 70.76 ml of 0.1M NaOH for neutralization, then the solution was heated to hydrolyze the acetylsalicylic acid. After the reaction mixture was cooled, the excess base was back- titrated with 14.29 ml of 0.1056 M HCI. How many grams of acetylsalicylic acid in the tablet? What is the purity % of ?acetylsalicylic acid in the tablet M.W of Aspirin = 180 g/mole Aspirin(s) + 2 NaOH(aq) Total salt(aq) + H2O(0) + NaOH(aq) Excess (1 NaOH(aq)Excess + HCl(aq) NaCl(aq) + H2O(l) ....... ((2 2 (2 ) 94% O 96% 98% O