A better way to measure the percent composition of N-methylacetamide at 283 K would involve Select one: O a. Performing 64 NMR scans after 17 minutes of cooling and averaging the results O b. Irradiating the NMR tube with microwaves for 15 seconds in order to rapidly change the temperature to 383 K O c. More rapid cooling to 283 K, and collection of NMR spectra as single scans at several time points after the temperature had reached 283 K O d. Spraying the content of NMR tube at 333 K quickly into liquid nitrogen to give a solid matrix in which the conformational inter-conversions are frozen e. Bubbling chlorine gas through the NMR tube during cooling in order to minimize temperature gradients at the walls of the NMR tube

A better way to measure the percent composition of N-methylacetamide at 283 K would involve Select one: O a. Performing 64 NMR scans after 17 minutes of cooling and averaging the results O b. Irradiating the NMR tube with microwaves for 15 seconds in order to rapidly change the temperature to 383 K O c. More rapid cooling to 283 K, and collection of NMR spectra as single scans at several time points after the temperature had reached 283 K O d. Spraying the content of NMR tube at 333 K quickly into liquid nitrogen to give a solid matrix in which the conformational inter-conversions are frozen e. Bubbling chlorine gas through the NMR tube during cooling in order to minimize temperature gradients at the walls of the NMR tube

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter43: Amines

Section: Chapter Questions

Problem 9Q

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