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Which spectrum is for ethyl isopropyl ketone? ignore the triplet at 77 ppm) min 200 200 spectrum A 160 spectrum B

Which spectrum is for ethyl isopropyl ketone? ignore the triplet at 77 ppm) min 200 200 spectrum A 160 spectrum B

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
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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**Question:** Which spectrum is for ethyl isopropyl ketone? *(Ignore the triplet at 77 ppm)* **Diagram:** The diagram shows the structural formula of ethyl isopropyl ketone. It consists of a ketone functional group with ethyl and isopropyl groups attached to the carbonyl carbon. **Spectrum A Analysis:** - Spectrum A shows a series of peaks at various parts per million (ppm) values, indicating different chemical environments of carbon atoms within the compound. - Notable peaks include several at lower ppm values, representing aliphatic carbon groups, and unique shifts corresponding to the carbonyl and branched alkane chains. **Spectrum B Analysis:** - Spectrum B also displays peaks at different ppm values, but the pattern and intensity differ from Spectrum A. - The distribution of peaks suggests a different arrangement of carbon atoms or chemical environments compared to Spectrum A. **Conclusion:** Based on the peak patterns and chemical shifts shown in the spectra, one can identify Spectrum A or B as corresponding to ethyl isopropyl ketone by analyzing the specific chemical environment of carbon atoms, taking into account the presence of the ketone and the branching of the alkyl chains.
Transcribed Image Text:**Question:** Which spectrum is for ethyl isopropyl ketone? *(Ignore the triplet at 77 ppm)* **Diagram:** The diagram shows the structural formula of ethyl isopropyl ketone. It consists of a ketone functional group with ethyl and isopropyl groups attached to the carbonyl carbon. **Spectrum A Analysis:** - Spectrum A shows a series of peaks at various parts per million (ppm) values, indicating different chemical environments of carbon atoms within the compound. - Notable peaks include several at lower ppm values, representing aliphatic carbon groups, and unique shifts corresponding to the carbonyl and branched alkane chains. **Spectrum B Analysis:** - Spectrum B also displays peaks at different ppm values, but the pattern and intensity differ from Spectrum A. - The distribution of peaks suggests a different arrangement of carbon atoms or chemical environments compared to Spectrum A. **Conclusion:** Based on the peak patterns and chemical shifts shown in the spectra, one can identify Spectrum A or B as corresponding to ethyl isopropyl ketone by analyzing the specific chemical environment of carbon atoms, taking into account the presence of the ketone and the branching of the alkyl chains.
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