Question

Following the experimental procedure in your lab manual for the synthesis of acetaminophen, a student combines 1.727 g 4-aminophenol (F.W. = 109.12 g/mol) with 2.7 mL acetic anhydride (density = 1.08 g/mL; F.W. = 102.1 g/mol). How many moles of 4-aminophenol were used in this reaction?

Answer 1

To calculate the number of moles of 4-aminophenol used in the experiment, divide the mass (1.727 g) by the molar mass (109.12 g/mol), resulting in 0.01582 moles of 4-aminophenol.

Step-by-step explanation:

To answer how many moles of 4-aminophenol were used in an experimental synthesis of acetaminophen, we will use the given mass of 4-aminophenol and its molar mass. The mass of 4-aminophenol provided is 1.727 grams, and the molar mass (molecular weight) is 109.12 g/mol. The number of moles is calculated by dividing the mass by the molar mass:

Number of moles = Mass (g) / Molar mass (g/mol)

Number of moles of 4-aminophenol = 1.727 g / 109.12 g/mol = 0.01582 mol

Therefore, 0.01582 moles of 4-aminophenol were used in this reaction.