Experiment_3_Lab_Report

Experiment_3_Lab_Report - Scott Coon Organic Chemistry Lab...

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Scott Coon Organic Chemistry Lab Lab Report Exp.3 I.) Introduction : Experiment 3, Recrystallization and Melting-Point Measurement (Identifying a Component of “Panacetin”), was an experiment that set out to determine what the unknown compound from Experiment 2 was. This experiment was based mainly on differences in melting points. Originally there were 3 possible suspects: Acetaminophen (pain killer used today), acetanilide, and phenacetin (discovered in the nineteenth century). Acetaminophen(2) was ruled out after experiment 2 which left either acetanilide(1) or phenacetin(3). (1) NHCOCH 3 (2) NHCOCH 3 OH (3) NHCOCH 3 OCH 2 CH 3 Figure 3.0: Shows molecular structure of Acetanilide (1), Acetaminophen (2), and Phenacetin (3). A hypothesis could be developed during recrystallization. This was because the unknown would either dissolve in 1.6mL or 6.6mL of boiling water. These measurements are based on a simple conversion from the total uncrystallized weight of 0.08g to milliliters of boiling water necessary for a solution. This table shows the amount of boiling water necessary to form a solution with acetanilide and
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This document was uploaded on 03/10/2011.

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Experiment_3_Lab_Report - Scott Coon Organic Chemistry Lab...

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