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For each of the maxima given in the UV spectra of Figures 8.51-8.53, determine the value of A and of log €

For each of the maxima given in the UV spectra of Figures 8.51-8.53, determine the value of A and of log €

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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For each of the maxima given in the UV spectra of Figures 8.51-8.53, determine the value of A and of log € (epsilon).

**Figure 8.54: UV Spectrum of Trans-p-anisalacetophenone** **Graph Explanation:** The graph presents the UV spectrum of trans-p-anisalacetophenone. It shows a plot of optical density (A) versus wavelength (nm). The optical density ranges from 0 to 1.0 and the wavelength is measured from 220 nm to 320 nm. - **Peak Observation:** - There is a distinct peak at approximately 230 nm, indicating a maximum absorbance. The optical density at this peak is about 0.75. **Additional Information:** - **Solvent:** CH₂Cl₂ - **Maximum Wavelength (λmax):** 230 nm - **Concentration:** 0.0027 g/L - **Pathlength:** 10 cm **Structure Illustration:** To the right of the graph, there is a chemical structure of trans-p-anisalacetophenone, featuring: - A methoxy group (H₃CO) attached to one of the benzene rings. - A ketone linkage (C=O) in the middle of the structure, between two phenyl rings. This diagram assists in visualizing the molecular structure in relation to its UV absorbance characteristics.
Transcribed Image Text:**Figure 8.54: UV Spectrum of Trans-p-anisalacetophenone** **Graph Explanation:** The graph presents the UV spectrum of trans-p-anisalacetophenone. It shows a plot of optical density (A) versus wavelength (nm). The optical density ranges from 0 to 1.0 and the wavelength is measured from 220 nm to 320 nm. - **Peak Observation:** - There is a distinct peak at approximately 230 nm, indicating a maximum absorbance. The optical density at this peak is about 0.75. **Additional Information:** - **Solvent:** CH₂Cl₂ - **Maximum Wavelength (λmax):** 230 nm - **Concentration:** 0.0027 g/L - **Pathlength:** 10 cm **Structure Illustration:** To the right of the graph, there is a chemical structure of trans-p-anisalacetophenone, featuring: - A methoxy group (H₃CO) attached to one of the benzene rings. - A ketone linkage (C=O) in the middle of the structure, between two phenyl rings. This diagram assists in visualizing the molecular structure in relation to its UV absorbance characteristics.
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