1. The problem statement, all variables and given/known data Write the complete mechanism for the acid-catalyzed formation of aspirin from salicylic acid and acetic anhydride 2. Relevant equations 3. The attempt at a solution I basically know the reaction but i'm not sure how to start the mechanism...Like i know that it is a substitution reaction where the OH group and the CH3--C==O switch places but how does it start? Does the the H group from the OH group first leave, then the CH3--C==O group can attack the O?