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Lab: Synthesis of Aspirin & Oil of Wintergreen - page 3 / 3

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Analysis & Discussion Questions:

1.

Calculate the theoretical yield of aspirin.

2.

Calculate the percent yield of aspirin.

3.

Two esters with the empirical formula C3H6O2 may be prepared.  Draw Lewis structures for these esters and name them.

4.

Why does/might our room smell like vinegar during this experiment?

5.

Draw the structure of methyl salicylate, which has a systematic name of 2-hydroxy-methyl-benzoate.

6.

Structurally, why are salicylic acid and acetylsalicylic acid considered acids?

References:http://www.reachoutmichigan.org/funexperiments/quick/csustan/aspirin.htm

http://www.aspirin-foundation.com/cardio2.htm

9/10/2008

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