One student's sample of benzil had a melting range of 90-95 C. The IR spectrum showed a strong, broad absorption at 3200-3400 cm'. The student is unsure whether the absorption is from water or from residual ethanol. What absorption-or lack of an absorption-in the IR spectrum could show that the absorption is probably due to moisture? What absorption(s) would suggest that ethanol? b. a. The student wanted to obtain another IR spectrum, but the lab period was over. The instructor told the student to store his product in an open beaker, not a capped vial. Why would this be helpful?

One student's sample of benzil had a melting range of 90-95 C. The IR spectrum showed a strong, broad absorption at 3200-3400 cm'. The student is unsure whether the absorption is from water or from residual ethanol. What absorption-or lack of an absorption-in the IR spectrum could show that the absorption is probably due to moisture? What absorption(s) would suggest that ethanol? b. a. The student wanted to obtain another IR spectrum, but the lab period was over. The instructor told the student to store his product in an open beaker, not a capped vial. Why would this be helpful?

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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