45 (b) Carry out the following conversions with plausible mechanism. Mention the reagents and reaction conditions : indozolindi) CH3 from .CH,CO,Et (ii) H3CO CH3 wollt -CHO + (C6H5)3P=CHOCH3 Wittig reaction A | 1) CH3OOC-C=C-COOCH3, A sic Typ 161902) SeO2 V B to asupinifoot

45 (b) Carry out the following conversions with plausible mechanism. Mention the reagents and reaction conditions : indozolindi) CH3 from .CH,CO,Et (ii) H3CO CH3 wollt -CHO + (C6H5)3P=CHOCH3 Wittig reaction A | 1) CH3OOC-C=C-COOCH3, A sic Typ 161902) SeO2 V B to asupinifoot

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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Explain why there is a difference in glass transition temperature between the following pairs of structurally similar polymers: (a) Polyethylene (Tg = -120°C) and polypropylene ((Tg = -20°C) (b) Poly(methyl acrylate) (Tg = 10°C) and poly(vinyl acetate) (Tg = 32°C) (c) Poly(but-1-ene) (Tg = -24°C) and polyisobutylene (Tg = -73°C) (d) Poly(ethylene oxide) (Tg = -41°C) and poly(vinyl alcohol) (Tg = 85°C) (e) Poly(ethyl acrylate) (Tg = -24°C) and poly(methyl methacrylate) (Tg = 105°C) %3D %3!
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Determine [FeSCN²+] of the unknown in Part B using measured absorbance and the trendline of calibration curve. absorbance(x) is 0.606 trendline is y=5790.0000x+(-0.0180); R2: 0.9978
Based on the IR Spectra, need help filling out the following table. Thank you :) Wavenumber (cm-1) Band intensity Assignment e.g. 3286 e.g. Medium, broad e.g. N-H stretching
Based on the IR Spectra, need help filling out the following table. Thank you :) Wavenumber (cm-1) Band intensity Assignment e.g. 3286 e.g. Medium, broad e.g. N-H stretching
Identify and label the bands that are present and correspond to the IR spectrum below : symmetric stretch, antisymmetric stretch and bend.
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1. For the above shown IR-Spectrum (Indicate the structure of the organic molecule). What are the characteristic peaks present? 2. Show (or draw) the IR spectrum, The NMR Spectrum and the Mass spectrum for Methyl Ethyl Ester. 3. Show or hand draw the IR spectrum, The NMR Spectrum and the Mass spectrum for Acetyl Salicylic acid (commonly known as Aspirin).
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All the following statements are TRUE about Beer-Lambert law, except: The percent transmission decreases exponentially with the concentration. A compound with a higher molar absorptivity will resulted with a higher absorbance during the measurement. The absorbance does not change with the cell or sample’s path length. The analyte concentration quantified by Beer-Lambert law assumes monochromatic light interacted with the analyte.
4. a) Mention and describe the first method used for the synthesis of carbon nanotubes? (4) b) Numerous nanomaterials have been synthesized using Chemical Vapour Deposition (CVD) method. Mention five step mechanism that are involved in CVD process? (5) c) Describe and compare FTIR and Raman spectroscopy d) Discuss how the optical properties are measured using UV-VIS
Based on the IR Spectra, need help filling out the following table. Thank you :) Wavenumber (cm-1) Band intensity Assignment e.g. 3286 e.g. Medium, broad e.g. N-H stretching