Aspirin (acetylsalicylic acid, C9H8O4) is made by reacting salicylic acid (C7H6O3) with acetic anhydride [(CH3CO)2O]: C7H6O3(s) + (CH3CO)2O(l) → C9H8O4(s) + CH3COOH(l)In one preparation, 3.077 g of salicylic acid and 5.50 mL of aceticanhydride react to form 3.281 g of aspirin. (a) Which is the limitlimiting reactant (d of acetic anhydride = 1.080 g/mL)? (b) What is the percent yield of this reaction?

Aspirin (acetylsalicylic acid, C9H8O4) is made by reacting salicylic acid (C7H6O3) with acetic anhydride [(CH3CO)2O]: C7H6O3(s) + (CH3CO)2O(l) → C9H8O4(s) + CH3COOH(l)In one preparation, 3.077 g of salicylic acid and 5.50 mL of aceticanhydride react to form 3.281 g of aspirin. (a) Which is the limitlimiting reactant (d of acetic anhydride = 1.080 g/mL)? (b) What is the percent yield of this reaction?

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter22: Biochemistry

Section: Chapter Questions

Problem 68E

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Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3C4H6O3) with salicylic acid (C7H6O3C7H6O3) to form aspirin (C9H8O4C9H8O4) and acetic acid (C2H4O2C2H4O2). The balanced equation isC4H6O3+C7H6O3→C9H8O4+C2H4O2C4H6O3+C7H6O3→C9H8O4+C2H4O2In a laboratory synthesis, a student begins with 2.90 mLmL of acetic anhydride (density=1.08gml−1density=1.08gml−1) and 1.28 gg of salicylic acid. Once the reaction is complete, the student collects 1.20 gg of aspirin. a) Determine the theoretical yield of aspirin for the reaction. Express your answer using three significant figures. b) Determine the percent yield of aspirin for the reaction. Express your answer using three significant figures.
Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3C4H6O3) with salicylic acid (C7H6O3C7H6O3) to form aspirin (C9H8O4C9H8O4) and acetic acid (C2H4O2C2H4O2). The balanced equation isC4H6O3+C7H6O3→C9H8O4+C2H4O2C4H6O3+C7H6O3→C9H8O4+C2H4O2In a laboratory synthesis, a student begins with 3.10 mLmL of acetic anhydride (density=1.08gml−1density=1.08gml−1) and 1.23 gg of salicylic acid. Once the reaction is complete, the student collects 1.22 gg of aspirin. Determine the percent yield of aspirin for the reaction. Express your answer using three significant figures.
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