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wavenumbers in cm-¹) Alkene (C-H) Alkane (C-H) Carbonyl (C=O) Alcohol (O-H) = 1700 cm^-✪ 3050 cm^- 2900 cm^- 3400 cm^-

wavenumbers in cm-¹) Alkene (C-H) Alkane (C-H) Carbonyl (C=O) Alcohol (O-H) = 1700 cm^-✪ 3050 cm^- 2900 cm^- 3400 cm^-

Organic Chemistry: A Guided Inquiry
Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL4: Proton (1h) Nmr Spectroscopy
Section: Chapter Questions
Problem 21CTQ
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### Matching Functional Groups with IR Frequencies **Objective:** Match the following functional groups with their associated infrared (IR) frequencies. *Note: All measurements below are approximate wavenumbers given in cm<sup>-1</sup>.* 1. **Alkene (C-H)** - Possible IR frequency: 1700 cm<sup>-1</sup> 2. **Alkane (C-H)** - Possible IR frequency: 3050 cm<sup>-1</sup> 3. **Carbonyl (C=O)** - Possible IR frequency: 2900 cm<sup>-1</sup> 4. **Alcohol (O-H)** - Possible IR frequency: 3400 cm<sup>-1</sup> ### Explanation Infrared spectroscopy is a technique commonly used in chemistry to identify functional groups within molecules. Each functional group absorbs infrared light at certain frequencies, which can be measured as wavenumbers (cm<sup>-1</sup>). In the context above, select the appropriate IR frequency for each functional group based on typical absorption ranges.
Transcribed Image Text:### Matching Functional Groups with IR Frequencies **Objective:** Match the following functional groups with their associated infrared (IR) frequencies. *Note: All measurements below are approximate wavenumbers given in cm<sup>-1</sup>.* 1. **Alkene (C-H)** - Possible IR frequency: 1700 cm<sup>-1</sup> 2. **Alkane (C-H)** - Possible IR frequency: 3050 cm<sup>-1</sup> 3. **Carbonyl (C=O)** - Possible IR frequency: 2900 cm<sup>-1</sup> 4. **Alcohol (O-H)** - Possible IR frequency: 3400 cm<sup>-1</sup> ### Explanation Infrared spectroscopy is a technique commonly used in chemistry to identify functional groups within molecules. Each functional group absorbs infrared light at certain frequencies, which can be measured as wavenumbers (cm<sup>-1</sup>). In the context above, select the appropriate IR frequency for each functional group based on typical absorption ranges.
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