October 9, 2015

Homework Help: science (chem)

Posted by ~christina~ on Wednesday, February 27, 2008 at 10:04pm.

I have a question. I'm forming Isopentyl acetate by the esterfication of acetic acid with isopentyl alcohol.
The rxn is shifted so that the ester is produced by using excess acetic acid.
In isolating the ester, the excess acetic acid and and isopentyl alcohol are removed by extraction with sodium bicarboonate and water.

My question is that why am I only using 5% and not saturated sodium bicarbonate?

I know that the sodium bicarbonate removes the acid but why it's only 5% is not understood by me.

Thank you.

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