Couple questions about the fischer esterification of isopentyl alcohol + acetic acid -----> (acid catalyzed) to form isopentyl acetate or banana oil. Refluxed, used sodium bicarb and na2So4, distilled. 1) how do I know that the final solution did not contain any alcohols? 2)What could have caused a low yield? 3)How to improve the yield? Iknow something w Le chatelier's but anything else? Thanks!