Help!!! orgo lab synthesis of isopentyl acetate questions

[osumc2014]

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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!

 

[armybound]

we're not here to answer your homework questions for you. sorry.