4. You'll purify your aspirin product via recrystallization before you can weigh it. The Merck Index indicates that at room temperature, 300 mL of water - but only 5 mL of ethanol - will dissolve 1 gram of aspirin. But the water solubility of aspirin increases with temperature. At 37°C, 1 gram will dissolve in 100 mL of water. Note you'll use a MIXTURE of ethanol and water to recrystallize your aspirin product. a) Why is it essential that you NOT allow the ethanol-water recrystallization mixture to reach a boil? b) And why is it important not to use too large a volume of ethanol in your recrystallization?

4. You'll purify your aspirin product via recrystallization before you can weigh it. The Merck Index indicates that at room temperature, 300 mL of water - but only 5 mL of ethanol - will dissolve 1 gram of aspirin. But the water solubility of aspirin increases with temperature. At 37°C, 1 gram will dissolve in 100 mL of water. Note you'll use a MIXTURE of ethanol and water to recrystallize your aspirin product. a) Why is it essential that you NOT allow the ethanol-water recrystallization mixture to reach a boil? b) And why is it important not to use too large a volume of ethanol in your recrystallization?

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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