Every step in a Fischer esterification is an equilibrium. How do you drive the r

Question

Every step in a Fischer esterification is an equilibrium. How do you drive the reaction towards products in this experiment? Isoamyl (isopentyl) acetate, like many esters, has a pleasant fruity aroma. It is often called banana oil because it has the familiar odor of a banana. You will carry out a Fischer esterification reaction to form isopentyl acetate: A generic mechanism for esterification of acetic acid is: This is an equilibrium reaction, so you need to consider lessthanorequalto Chatelier's Principle in order to obtain a good yield of your product. In this case, you will use excess acetic acid to drive the reaction forward because acetic acid is relatively inexpensive.

Explanation / Answer

ans)      fischer esterification reaction is a reversible reaction.& reaches equilibrium when there are appreciable

quantities of both reactants &products.

the same catalyst H+ ,catalyses the forward reaction ( esterification), also catalyses the backward reaction (hydrolysis). if we consider Le-Chatelier"s principle in order to obtain a good yield follow the method,i.e.

the above equilibrium can be shifted towards esterformation by removing water as it is formed.it can be done

by adding benzene as a cosolvent &distilling the azeotropic mixture of benzene & water .

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                                                thank u

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