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20. (a) The UV spectrum of acetone shows two peaks at 7-max = 280 nm max 15. = 1900 nm Emax 100. (1) identify the electronic transition for each. (ii) which one of these is more intense ? (b) Why is methanol a good solvent for UV but not for IR determination? and max

20. (a) The UV spectrum of acetone shows two peaks at 7-max = 280 nm max 15. = 1900 nm Emax 100. (1) identify the electronic transition for each. (ii) which one of these is more intense ? (b) Why is methanol a good solvent for UV but not for IR determination? and max

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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20. (a) The UV spectrum of acetone shows two peaks at 15. 7-max = 280 nm max = 1900 nm Emax max and 100. (1) identify the electronic transition for each. (ii) which one of these is more intense ? (b) Why is methanol a good solvent for UV but not for IR determination? 21. (a) How will you detect C=C-C=Cby UV spectroscopy? (b) Write why absorption bands are formed in ultra-violet spectrum instead of sharp peaks ?
Transcribed Image Text:20. (a) The UV spectrum of acetone shows two peaks at 15. 7-max = 280 nm max = 1900 nm Emax max and 100. (1) identify the electronic transition for each. (ii) which one of these is more intense ? (b) Why is methanol a good solvent for UV but not for IR determination? 21. (a) How will you detect C=C-C=Cby UV spectroscopy? (b) Write why absorption bands are formed in ultra-violet spectrum instead of sharp peaks ?
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