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Acid base Extraction
Title: Acid base Extraction
Category: Science & Technology / Chemistry
Details: Words: 1621 | Pages: 6.9 (approximately 235 words/page)
Acid base Extraction
The purpose of this laboratory assignment was two-fold, first, we were to
demonstrate the extraction of acids and bases, finally, determining what unknowns were
present. Second, we were to extract caffeine from tea. These two assignment will be
documented in two separate entities.
Introduction: Acid/base extraction involves carrying out simple acid/base reactions in
order to separate strong organic acids, weak organic acids neutral organic compounds
and basic organic substances. The procedure for this …showed first 75 words of 1621 total…
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Caffeine beaker: 51.61g
-51.56g
.05g = 50mg
% yield = .05g x 100% = 20%
.25g
Caffeine salicylate: 17.198g
-17.036g
.062g
% yield = .062g x 100% = 25%
.25g
Conclusion
According to the HPLC graph that follows, my product was very pure. The actual
melting point of caffeine salicylate is 137 degree(C), my product was found to have a
melting point of 138 degrees (C). As before, of course this experiment was not done
completely error-free, the error is due almost entirely on human error.
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