Quiz3(M06) - extraction? 4. Why will ether in the aqueous...

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Name: Quiz 3 1. A crude non-acidic product mixture dissolved in diethyl ether contains acetic acid. Describe an extraction procedure that could be used to remove the acetic acid. 2. If you are extracting an organic compound from an aqueous solution using an organic solvent (i.e. ether), how much organic material will you be able to obtain after 2 extractions (assume equal volumes of solvent used and K p =1)? 3. Why is ethanol rarely used as an extracting solvent for liquid-liquid extractions? What properties would the solvents need in order to successfully carry out a liquid-liquid
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Unformatted text preview: extraction? 4. Why will ether in the aqueous extract impede the formation of crystals during the neutralization of the acid/base? 5. Which purification technique will you use at the end of lab today to purify caffeine? How will you measure the melting point since the sublimation point of caffeine is lower than the melting point at atmospheric pressure? 6. What precautions should be observed when an aqueous sodium carbonate solution is used to extract an organic solution containing traces of acid?...
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