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In the synthesis of pentyl pentanoate using a Fisher esterification, if there is contamination of your...

In the synthesis of pentyl pentanoate using a Fisher esterification, if there is contamination of your ester with some residual alcohol, how will this affect the refractive index of your ester? Explain your answer using literature values (properly referenced).

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The refractive index of pentyl propanoate and pentanol is 1.423 and 1.4103 respectively. As it is clearly seen that the refractive index of pentanol (an alcohol) is smaller than that of pentyl propanoate (an ester). Therefore, the refractive index will get decreased in the presence of the residual alcohol.

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