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Deuterium oxide, D20, is water that contains the stable hydrogen isotope ?H, usually shown as D. When dissolved in deuterium oxide, ethanol undergoes the following reaction: CH;CH2OH + D2O → CH;CH2OD + HOD What is the best way of showing that this reaction has occurred?

Deuterium oxide, D20, is water that contains the stable hydrogen isotope ?H, usually shown as D. When dissolved in deuterium oxide, ethanol undergoes the following reaction: CH;CH2OH + D2O → CH;CH2OD + HOD What is the best way of showing that this reaction has occurred?

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter2: Atoms Molecules And Ions
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40. Deuterium oxide, D20, is water that contains the stable hydrogen isotope 'H, usually shown as D. When dissolved in deuterium oxide, ethanol undergoes the following reaction: CH3CH2OH + D20 CH3CH2OD + HOD What is the best way of showing that this reaction has occurred? A. By testing the product with phosphorus pentachloride and not getting steamy fumes. B. By determining the mass spectrum of the mixture and showing peaks at m/z values of 20 and 46. C. By fractionally distilling the mixture and determining the amount of CH3CH2OD using a Geiger counter. D. By determining the mass spectrum of the mixture and showing peaks at m/z values by 19 and 47.
Transcribed Image Text:40. Deuterium oxide, D20, is water that contains the stable hydrogen isotope 'H, usually shown as D. When dissolved in deuterium oxide, ethanol undergoes the following reaction: CH3CH2OH + D20 CH3CH2OD + HOD What is the best way of showing that this reaction has occurred? A. By testing the product with phosphorus pentachloride and not getting steamy fumes. B. By determining the mass spectrum of the mixture and showing peaks at m/z values of 20 and 46. C. By fractionally distilling the mixture and determining the amount of CH3CH2OD using a Geiger counter. D. By determining the mass spectrum of the mixture and showing peaks at m/z values by 19 and 47.
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