The mercuric salt of this ion is used for oxymercuration. Like borate, Tris bonds this ion in a commonbuffer for electrophoresis. This ion is the smallest short-chain fatty acid. This ion, which has a conjugatepKa of 4.76, is a much weaker base than ethoxide, as shown in a common classroom example of resonancestability. Cellulose esters are almost always made to this group, which is added to salicylic acid to make(*) aspirin. Like nitrate, chlorate, and perchlorate, all 
The mercuric salt of this ion is used for oxymercuration. Like borate, Tris bonds this ion in a commonbuffer for electrophoresis. This ion is the smallest short-chain fatty acid. This ion, which has a conjugatepKa of 4.76, is a much weaker base than ethoxide, as shown in a common classroom example of resonancestability. Cellulose esters are almost always made to this group, which is added to salicylic acid to make(*) aspirin. Like nitrate, chlorate, and perchlorate, all salts of this anion are water-soluble. Adding vinegar tobicarbonate makes carbonic acid and this ion. This carboxylate has two carbon atoms. For 10 points, name this ionwith formula CH3COO minus, the conjugate base of acetic acid.