Homework Solution: The carbonyl-carbon resonance of 3-methyl- 2-butanone occurs at 208.7 ppm downfield from…

    Page 1 (5 pts) The carbonyl-carbon resonance of 3-methyl- 2-butanone occurs at 208.7 ppm downfield from TMS. How many hertz downfield from TMS would this carbonyl-carbon absorb is the spectrometer used to measure this absorption were operating at 200 MHz? 2. Page 2 (5 pts) Consider the structure of phenol. The chemical shift of the hydroxyl proton is found to be sensitive to the concentration of phenol. In a concentrated solution, the hydroxyl proton produces a signal at 7.5 ppm. However, in a dilute solution, the hydroxyl proton produces a signal at 4.5 ppm. How will you explain this difference? 3. 4. Page 2 (5 pts) A chemist was attempting to achieve the following transformation: HBr Br Mass spectrometry was then used to verify that the molecular formula of the major product was C,HisBr just as expected. However, the H NMR spectrum of the product exhibited more than two signals. Identify what product was actually obtained. What might have caused formation of this product?
    The carbonyl-carbon resonance of 3-methyl- 2-butanone occurs at 208.7 ppm downfield from TMS. How many hertz downfield from TMS would this carbonyl-carbon absorb is the spectrometer used to measure this absorption were operating at 200 MHz? Consider the structure of phenol. The chemical shift of the hydroxyl proton is found to be sensitive to the concentration of phenol. In a concentrated solution, the hydroxyl proton produces a signal at 7.5 ppm. However, in a dilute solution, the hydroxyl proton produces a signal at 4.5 ppm. How will you explain this difference? A chemist was attempting to achieve the following transformation: Mass spectrometry was then used to verify that the molecular formula of the major product was C_7H_15Br, just as expected. However, the ^1H NMR spectrum of the product exhibited more than two signals. Identify what product was actually obtained. What might have caused formation of this product?

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    Page 1 (5 pts) The carbonyl-carbon clang of 3-methyl- 2-butanone occurs at 208.7 ppm downfield from TMS. How divers hertz downfield from TMS would this carbonyl-carbon collect is the spectrometer used to gauge this aridity were frank at 200 MHz? 2. Page 2 (5 pts) Consider the constituency of phenol. The chemical displace of the hydroxyl proton is build to be perceptive to the force of phenol. In a collected disentanglement, the hydroxyl proton produces a distinguished at 7.5 ppm. However, in a enfeeble disentanglement, the hydroxyl proton produces a distinguished at 4.5 ppm. How get you clear-up this dissimilarity? 3. 4. Page 2 (5 pts) A chemist was attempting to end the subjoined transformation: HBr Br Mass spectrometry was then used to establish that the molecular formula of the greater fruit was C,HisBr proportioned as expected. However, the H NMR spectrum of the fruit exhibited further than brace distinguisheds. Identify what fruit was in-fact obtained. What ability enjoy caused construction of this fruit?

    The carbonyl-carbon clang of 3-methyl- 2-butanone occurs at 208.7 ppm downfield from TMS. How divers hertz downfield from TMS would this carbonyl-carbon collect is the spectrometer used to gauge this aridity were frank at 200 MHz? Consider the constituency of phenol. The chemical displace of the hydroxyl proton is build to be perceptive to the force of phenol. In a collected disentanglement, the hydroxyl proton produces a distinguished at 7.5 ppm. However, in a enfeeble disentanglement, the hydroxyl proton produces a distinguished at 4.5 ppm. How get you clear-up this dissimilarity? A chemist was attempting to end the subjoined transformation: Mass spectrometry was then used to establish that the molecular formula of the greater fruit was C_7H_15Br, proportioned as expected. However, the ^1H NMR spectrum of the fruit exhibited further than brace distinguisheds. Identify what fruit was in-fact obtained. What ability enjoy caused construction of this fruit?

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