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Unformatted text preview: can be filtered out of the solution. This solution can then be titrated to convert the drugs from acids to their conjugate base. These bases can be extracted into organic solvents one at a time. 4. To recrystallize caffeine, I would choose a mixture of ether and ethanol, because it is not very soluble in ethanol. This solution would allow for some dissolving of caffeine in ether, while the addition of ethanol limits the solubility. 5. Sulfuric acid was used to neutralize naproxen because it is better at pulling the naproxen base away from the sodium atom than other acids, such as acetic acid....
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This note was uploaded on 09/18/2011 for the course CHEM 3AL taught by Professor Li during the Spring '08 term at University of California, Berkeley.
- Spring '08