262-7 - Anusha Vadlamudi TA: Lindsay Aldridge Chem 262 L...

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Anusha Vadlamudi TA: Lindsay Aldridge Chem 262 L 401; Rm: 300 Experiment VII: Preparation of Amides from Carboxylic Acids In this experiment, 0.295 g purified acid from experiment 1 was converted into its amide derivative. First, the purified acid was placed into a 5-mL round-bottomed flask. About 1 mL of SOCl 2 was added to the flask. The solution was heated at reflux on low heat for 45 minutes. AN inverted glass funnel, connected to the aspirator was used to remove acid fumes. The mixture was then cooled to room temperature and pipeted dropwise into a beaker containing 10 mL NH 4 OH solution. As soon as the mixture began to be added to the NH 4 OH solution, it became very steamy. The mixture was then cooled to room temperature. Next, 10 mL water and 10 mL CH 2 Cl 2 were added and stirred. When the mixture was transferred to a separatory funnel, two layers appeared. The top layer was the aqueous layer and appeared to be clear. The bottom layer was the more dense CH 2 Cl 2 layer, which was yellow and cloudy. The CH
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262-7 - Anusha Vadlamudi TA: Lindsay Aldridge Chem 262 L...

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