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The experiment required 3 drops of concentrated sulfuric acid. Why was this acid added? Would the reaction take place if this reagent were omitted? A student thought he carefully followed the directions in the experimental procedure, and he expected 2.63 g of product. However, his isolated product weighed 3.05 g. What would account for the excess weight? Bottles containing old aspirin tablets often smell of vinegar. The presence of what chemical causes this smell? How does this chemical form?

The experiment required 3 drops of concentrated sulfuric acid. Why was this acid added? Would the reaction take place if this reagent were omitted? A student thought he carefully followed the directions in the experimental procedure, and he expected 2.63 g of product. However, his isolated product weighed 3.05 g. What would account for the excess weight? Bottles containing old aspirin tablets often smell of vinegar. The presence of what chemical causes this smell? How does this chemical form?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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For experiment of PREPARATION OF ACETYLSALICYLIC ACID (ASPIRIN):

  1. The experiment required 3 drops of concentrated sulfuric acid. Why was this acid added? Would the reaction take place if this reagent were omitted?
  2. A student thought he carefully followed the directions in the experimental procedure, and he expected 2.63 g of product. However, his isolated product weighed 3.05 g. What would account for the excess weight?
  3. Bottles containing old aspirin tablets often smell of vinegar. The presence of what chemical causes this smell? How does this chemical form?

 

 

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