Laboratory Techniques in Organic Chemistry
4th Edition
ISBN: 9781464134227
Author: Jerry R. Mohrig, David Alberg, Gretchen Hofmeister, Paul F. Schatz, Christina Noring Hammond
Publisher: W. H. Freeman
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Question
Chapter 3, Problem 3Q
Interpretation Introduction
Interpretation:
The theoretical yield and the percent yield of acetylsalicylic acid needs to be calculated.
Concept Introduction:
A limiting reactant limits the amount of product formed in the reaction. The theoretical yield is the amount of product formed from limiting reactant. The percent yield can be calculated from theoretical yield and actual yield as follows:
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Given the balanced reaction between salicylic acid (C7H6O3) and acetic anhydride (C4H6O3) to produce ASA or acetylsalicylic acid (C9H8O4) and acetic acid (C2H4O2), the following experimental materials are provided: 5.00 g of pure salicylic acid, 7.14 g of acetic anhydride and 8 drops concentrated sulfuric acid as catalyst. After successful synthesis, the group was able to collect 5.25 grams of acetylsalicylic acid. (Atomic weights: C= 12 amu; H = 1 amu; O= 16 amu; density acetic anhydride = 1.08 g/mL). What is the THEORETICAL yield of ASA in the experiment?
Chapter 3 Solutions
Laboratory Techniques in Organic Chemistry
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