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From Wikipedia, the free encyclopedia. Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O. Commonly abbreviated Ac 2 O, it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis.ike most acid anhydrides, the carbonyl carbon of acetic anhydride is a potent electrophile as the leaving group for each carbonyl carbon (a carboxylate) is a good electron-withdrawing group.
Best Answer: One can think of a salt as the product of the reaction of a strong acid and a strong base. This is not always the case. Cations of weak bases are usually acidic, and anions of weak acids are usually basic. Cations of strong bases are neutral, anions of strong acids are neutral.So, ammonium salts (ammonia is a weak base) are acidic because in aqueous solution they can dissociate into ammonia and a proton. Halide anions are neutral, with the exception of F-, which is basic, because HF is a weak acid.Metal cations are generally neutral (with a few exceptions, like Fe+++). Salts of weak acid/weak base, and strong acid/strong base like ammonium cyanide and sodium chloride, are neutral. would arrange the salts this way: Neutrals: LiNO3, SrBr2, NH4CN LiNO3 and SrBr2 are the products of strong acid/strong base NH4CN is the product of weak acid/weak base Acids: NH4Br, NH4ClO4 Both are products of strong acid/weak base Bases: LiF, KCN Both are products of strong base/weak acid. Source(s):