1. While synthesizing aspirin, a student masses out 3.4898 gsalicylic acid.

A) What is the theoretical yield of aspirin the student canmake? (the molar mass of salicylic acid is 138.12 g/mol and molarmass of aspirin is 180.2 g/mol)

B) After vacuum filtration, the student collects 3.8929 gaspirin. What is the percent yield?

C) What is the percent error?

2. What is the yield of aspirin when reacting excess salicylicacid with 2.09 mL of acetic anhydride? The density of aceticanhydride is 1.082 g/mL.

3. What is the percent yield if you prepared 2.80 x 10 3 g ofaspirin from an industrial process when the theoretical yield was3.87 kg?

4. A) Explain how the FeCl3 test helps you determine the purityof aspirin (What functional group causes the reaction)?

B) After reviewing the results of the FeCl3 test that your labinstructors posted, what is the purest aspirin product, thecommercial aspirin or the synthesized aspirin? Why?

C) Propose a reason for your observation for part B.

D) What was the purpose of testing ethanol with FeCl3?

5. A) What functional group(s) is/are responsible for theacidity of aspirin?

B) According to the pH test results posted by your instructors,what is the sample that is most acidic? And why?

C) Why do you propose that we convert Salicylic acid toAcetylsalicylic acid although they both function as analgesics?