Question

A suspension of 4-aminophenol (1.0 equivalent) in water (1 mL of water for every 2.7 mmol of 4- aminophenol) is heated at 65 °C to 75 °C for 5 minutes with stirring. Acetic anhydride (1.5 equivalents) is added, and the reaction is stirred for 10 minutes at 65 °C to 75 °C, and then an additional 10 minutes at room temperature. At this point, the crude target product begins to slowly precipitate from the solution. You can assume that your limiting reagent has been completely consumed.

Your target mass of acetaminophen is 2.00 g. Based on your target mass, answer the questions below. Enter all quantities accurate to three significant figures. For liquid reagents, enter a volume in millilitres. For solid reagents, enter a mass in grams.

a. What quantity of 4-aminophenol do you need to start with? ____________

b. What quantity of water do you need to use as the solvent? ____________

c. What quantity of acetic anhydride do you require? ____________

d. What mass of purified product would be isolated to give an experimental yield of 76.80?

NOTE: I only need help with part b and c.

Here are the answers for part “a” and “d”:

a) 1.44 g

d) 1.57 g

Answer 1

Ans

Please find attached file for answer with all calculation.

Molecular weight of 4 amino phenol is 109.13g/mol

Molecular weight of acetic anhydride is 102.09 g/mol

Density of acetic anhydride is 1.08 g/cm3.

Hope it will clear your concept.