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1. Draw in all hydrogen atoms in the chemical structure. Remember that there are always four bonds to carbon. 2. How many hydrogen atoms are in the structure? 3. The total number of hydrogen atoms in the chemical structure should equal the total number of protons integrated in the spectrum. What is the total number of protons integrated in the spectrum? Does the total number of hydrogen atoms in the structure match the total number of protons integrated in the spectrum? Show your work.

1. Draw in all hydrogen atoms in the chemical structure. Remember that there are always four bonds to carbon. 2. How many hydrogen atoms are in the structure? 3. The total number of hydrogen atoms in the chemical structure should equal the total number of protons integrated in the spectrum. What is the total number of protons integrated in the spectrum? Does the total number of hydrogen atoms in the structure match the total number of protons integrated in the spectrum? Show your work.

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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8.5 8.0 0.96 0.93 6.18- H3C FO 7.5 7.0 6.5 R OH 6.0 0.97 1.02 जू 1.01- 5.5 5.0 4.5 4.0 f1 (ppm) Fsor 3.5 0.76- 3.00- 3.0 2.5 2.0 H2O 1.5 1.0 0.5 0.0 -80 -70 -60 -50 -40 -30 -20 -10 -0 -10
Transcribed Image Text:8.5 8.0 0.96 0.93 6.18- H3C FO 7.5 7.0 6.5 R OH 6.0 0.97 1.02 जू 1.01- 5.5 5.0 4.5 4.0 f1 (ppm) Fsor 3.5 0.76- 3.00- 3.0 2.5 2.0 H2O 1.5 1.0 0.5 0.0 -80 -70 -60 -50 -40 -30 -20 -10 -0 -10
1. Draw in all hydrogen atoms in the chemical structure. Remember that there are always four bonds to carbon. 2. How many hydrogen atoms are in the structure? 3. The total number of hydrogen atoms in the chemical structure should equal the total number of protons integrated in the spectrum. What is the total number of protons integrated in the spectrum? Does the total number of hydrogen atoms in the structure match the total number of protons integrated in the spectrum? Show your work. 4. Consider the chemical equivalence (number of different kinds of protons) within the molecule. Label each different type of proton with a lower-case letter. How many signals would be expected to appear in the spectrum? Hint, the number of signals that should be in the spectrum may be overlapping in the true spectrum. Diastereotopic protons are not equivalent. 5. What are diastereotopic protons? Which two protons in this molecule are diastereotopic? ( 6. Use the 'H NMR Chemical Shift Table to predict the ppm range expected for each chemically equivalent proton listed in Problem 4. 7. Predict the splitting pattern of each proton signal. Splitting patterns are predicted by identifying the number of equivalent neighboring protons (singlet, doublet, triplet, quartet, multiplet...) ( 8. Discuss how the 'H NMR spectrum can be used to help prove the identity of the product. Consider the structural features (chemical shifts and presence or absence of signals) and the number of protons (integration) in the product compared to the starting material. (
Transcribed Image Text:1. Draw in all hydrogen atoms in the chemical structure. Remember that there are always four bonds to carbon. 2. How many hydrogen atoms are in the structure? 3. The total number of hydrogen atoms in the chemical structure should equal the total number of protons integrated in the spectrum. What is the total number of protons integrated in the spectrum? Does the total number of hydrogen atoms in the structure match the total number of protons integrated in the spectrum? Show your work. 4. Consider the chemical equivalence (number of different kinds of protons) within the molecule. Label each different type of proton with a lower-case letter. How many signals would be expected to appear in the spectrum? Hint, the number of signals that should be in the spectrum may be overlapping in the true spectrum. Diastereotopic protons are not equivalent. 5. What are diastereotopic protons? Which two protons in this molecule are diastereotopic? ( 6. Use the 'H NMR Chemical Shift Table to predict the ppm range expected for each chemically equivalent proton listed in Problem 4. 7. Predict the splitting pattern of each proton signal. Splitting patterns are predicted by identifying the number of equivalent neighboring protons (singlet, doublet, triplet, quartet, multiplet...) ( 8. Discuss how the 'H NMR spectrum can be used to help prove the identity of the product. Consider the structural features (chemical shifts and presence or absence of signals) and the number of protons (integration) in the product compared to the starting material. (
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