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The expected splitting pattern of Hª is The expected splitting pattern of Hº is quintet triplet triplet singlet quartet quintet doublet doublet singlet quartet multiplet O multiplet The expected integration value of Hª is The expected integration value of Hb is 1H 4H 5H 2H 4H 1H 2H 6H 3H 5H 6H 3H O O O

The expected splitting pattern of Hª is The expected splitting pattern of Hº is quintet triplet triplet singlet quartet quintet doublet doublet singlet quartet multiplet O multiplet The expected integration value of Hª is The expected integration value of Hb is 1H 4H 5H 2H 4H 1H 2H 6H 3H 5H 6H 3H O O O

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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### Proton NMR Splitting Patterns and Integration Values 1. **The expected splitting pattern of Ha is:** - [ ] quintet - [ ] triplet - [ ] quartet - [ ] doublet - [ ] singlet - [ ] multiplet 2. **The expected splitting pattern of Hb is:** - [ ] triplet - [ ] singlet - [ ] quintet - [ ] doublet - [ ] quartet - [ ] multiplet 3. **The expected integration value of Ha is:** - [ ] 1H - [ ] 5H - [ ] 4H - [ ] 2H - [ ] 3H - [ ] 6H 4. **The expected integration value of Hb is:** - [ ] 4H - [ ] 2H - [ ] 1H - [ ] 6H - [ ] 5H - [ ] 3H
Transcribed Image Text:### Proton NMR Splitting Patterns and Integration Values 1. **The expected splitting pattern of Ha is:** - [ ] quintet - [ ] triplet - [ ] quartet - [ ] doublet - [ ] singlet - [ ] multiplet 2. **The expected splitting pattern of Hb is:** - [ ] triplet - [ ] singlet - [ ] quintet - [ ] doublet - [ ] quartet - [ ] multiplet 3. **The expected integration value of Ha is:** - [ ] 1H - [ ] 5H - [ ] 4H - [ ] 2H - [ ] 3H - [ ] 6H 4. **The expected integration value of Hb is:** - [ ] 4H - [ ] 2H - [ ] 1H - [ ] 6H - [ ] 5H - [ ] 3H
### Predicting NMR Characteristics for Protons \( H^a \) and \( H^b \) In this exercise, we will predict the characteristics of the signals for the protons labeled \( H^a \) and \( H^b \) in the molecule depicted below. Specifically, we aim to determine their approximate chemical shifts, splitting patterns, and integration values in the \( ^1H \) NMR spectrum. #### Molecular Structure: The provided structure is an organic molecule with protons labeled as \( H^a \) and \( H^b \). The \( H^a \) protons are located near the oxygen atom attached to a carbon, while the \( H^b \) protons are situated near the carbonyl group in the structure. #### Approximate Chemical Shifts: * **For the \( H^a \) protons:** - The possible chemical shifts for \( H^a \) are: - 3 to 5 ppm - 2 ppm - 7 to 8 ppm - 1 ppm - 5 to 6 ppm * **For the \( H^b \) protons:** - The possible chemical shifts for \( H^b \) are: - 7 to 8 ppm - 1 ppm - 5 to 6 ppm - 3 to 5 ppm - 2 ppm ### Question 1: Approximate Chemical Shift of \( H^a \) Select the range that best estimates the chemical shift for \( H^a \): - \( \bigcirc \) 3 to 5 ppm - \( \bigcirc \) 2 ppm - \( \bigcirc \) 7 to 8 ppm - \( \bigcirc \) 1 ppm - \( \bigcirc \) 5 to 6 ppm ### Question 2: Approximate Chemical Shift of \( H^b \) Select the range that best estimates the chemical shift for \( H^b \): - \( \bigcirc \) 7 to 8 ppm - \( \bigcirc \) 1 ppm - \( \bigcirc \) 5 to 6 ppm - \( \bigcirc \) 3 to 5 ppm - \( \bigcirc \) 2 ppm #### Explanation of Diagram: The provided diagram
Transcribed Image Text:### Predicting NMR Characteristics for Protons \( H^a \) and \( H^b \) In this exercise, we will predict the characteristics of the signals for the protons labeled \( H^a \) and \( H^b \) in the molecule depicted below. Specifically, we aim to determine their approximate chemical shifts, splitting patterns, and integration values in the \( ^1H \) NMR spectrum. #### Molecular Structure: The provided structure is an organic molecule with protons labeled as \( H^a \) and \( H^b \). The \( H^a \) protons are located near the oxygen atom attached to a carbon, while the \( H^b \) protons are situated near the carbonyl group in the structure. #### Approximate Chemical Shifts: * **For the \( H^a \) protons:** - The possible chemical shifts for \( H^a \) are: - 3 to 5 ppm - 2 ppm - 7 to 8 ppm - 1 ppm - 5 to 6 ppm * **For the \( H^b \) protons:** - The possible chemical shifts for \( H^b \) are: - 7 to 8 ppm - 1 ppm - 5 to 6 ppm - 3 to 5 ppm - 2 ppm ### Question 1: Approximate Chemical Shift of \( H^a \) Select the range that best estimates the chemical shift for \( H^a \): - \( \bigcirc \) 3 to 5 ppm - \( \bigcirc \) 2 ppm - \( \bigcirc \) 7 to 8 ppm - \( \bigcirc \) 1 ppm - \( \bigcirc \) 5 to 6 ppm ### Question 2: Approximate Chemical Shift of \( H^b \) Select the range that best estimates the chemical shift for \( H^b \): - \( \bigcirc \) 7 to 8 ppm - \( \bigcirc \) 1 ppm - \( \bigcirc \) 5 to 6 ppm - \( \bigcirc \) 3 to 5 ppm - \( \bigcirc \) 2 ppm #### Explanation of Diagram: The provided diagram
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