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100- 80- eb 40 28 4898 302 са Hо 02 3500 2939.89 3030 12 क 2828.88 2739.27 m 10.0 9.5 9.0 8.5 8.0 7.5 PPM 2500 HAVENUMBERS 2 2000 3.5 1897.57 3.0 -SO COBT 1510 45 19*96CT 1500 Page 1 of 1 .89 2.5 aTaT 806921 ee STTT 1161.29 922.09 1000 2.0 1.5 P 2051000

100- 80- eb 40 28 4898 302 са Hо 02 3500 2939.89 3030 12 क 2828.88 2739.27 m 10.0 9.5 9.0 8.5 8.0 7.5 PPM 2500 HAVENUMBERS 2 2000 3.5 1897.57 3.0 -SO COBT 1510 45 19*96CT 1500 Page 1 of 1 .89 2.5 aTaT 806921 ee STTT 1161.29 922.09 1000 2.0 1.5 P 2051000

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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Find all the IR Peak Assignment and NMR Peak Assignment
### Infrared (IR) Spectrum Analysis This image displays an infrared spectroscopy (IR) spectrum for a chemical compound with the formula C₉H₁₀O₂. The graph presents several peaks that indicate different vibrational modes of the molecules within the compound. #### Graph Explanation: **X-Axis:** Wavenumbers (cm⁻¹) - This represents the frequency of light absorbed by the sample. It ranges from about 4000 cm⁻¹ to 400 cm⁻¹. **Y-Axis:** Percent Transmittance - This shows the percentage of light that passes through the sample. A lower percentage indicates higher absorption at that frequency. **Notable Peaks:** - **2967.18 cm⁻¹, 2932.09 cm⁻¹, 2869.21 cm⁻¹:** Indicative of C-H stretching in alkanes. - **1717.57 cm⁻¹:** Suggests the presence of a carbonyl group (C=O). - **1599.44 cm⁻¹, 1504.64 cm⁻¹:** Correspond to C=C stretching in aromatics. - **1461.99 cm⁻¹, 1376.08 cm⁻¹:** Likely related to C-H bending. - **1271.10 cm⁻¹, 1227.27 cm⁻¹, 1171.09 cm⁻¹, 1141.29 cm⁻¹:** Possibly C-O stretching or other complex vibrations. ### Nuclear Magnetic Resonance (NMR) Spectrum Analysis Two Nuclear Magnetic Resonance (NMR) spectra are shown, typically used to determine the structure of organic molecules. #### Graph Explanation: **X-Axis:** Chemical Shift (ppm) - This indicates the environment of hydrogen atoms (H-NMR) in the molecule. ##### Peaks: - **1: About 10.0-9.5 ppm:** Possibly related to proton(s) attached to a highly electronegative group or in an aldehyde. - **2: Around 4.0 ppm:** Indicates protons adjacent to electronegative atoms like oxygen. - **3: Spanning 1.5 ppm:** Suggests protons in a less electronegative environment, such as alkyl groups. - **4: Between 8.5-7.5 ppm:** Correlates with aromatic protons, indicative of
Transcribed Image Text:### Infrared (IR) Spectrum Analysis This image displays an infrared spectroscopy (IR) spectrum for a chemical compound with the formula C₉H₁₀O₂. The graph presents several peaks that indicate different vibrational modes of the molecules within the compound. #### Graph Explanation: **X-Axis:** Wavenumbers (cm⁻¹) - This represents the frequency of light absorbed by the sample. It ranges from about 4000 cm⁻¹ to 400 cm⁻¹. **Y-Axis:** Percent Transmittance - This shows the percentage of light that passes through the sample. A lower percentage indicates higher absorption at that frequency. **Notable Peaks:** - **2967.18 cm⁻¹, 2932.09 cm⁻¹, 2869.21 cm⁻¹:** Indicative of C-H stretching in alkanes. - **1717.57 cm⁻¹:** Suggests the presence of a carbonyl group (C=O). - **1599.44 cm⁻¹, 1504.64 cm⁻¹:** Correspond to C=C stretching in aromatics. - **1461.99 cm⁻¹, 1376.08 cm⁻¹:** Likely related to C-H bending. - **1271.10 cm⁻¹, 1227.27 cm⁻¹, 1171.09 cm⁻¹, 1141.29 cm⁻¹:** Possibly C-O stretching or other complex vibrations. ### Nuclear Magnetic Resonance (NMR) Spectrum Analysis Two Nuclear Magnetic Resonance (NMR) spectra are shown, typically used to determine the structure of organic molecules. #### Graph Explanation: **X-Axis:** Chemical Shift (ppm) - This indicates the environment of hydrogen atoms (H-NMR) in the molecule. ##### Peaks: - **1: About 10.0-9.5 ppm:** Possibly related to proton(s) attached to a highly electronegative group or in an aldehyde. - **2: Around 4.0 ppm:** Indicates protons adjacent to electronegative atoms like oxygen. - **3: Spanning 1.5 ppm:** Suggests protons in a less electronegative environment, such as alkyl groups. - **4: Between 8.5-7.5 ppm:** Correlates with aromatic protons, indicative of
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