Provide a reasonable structure that is consistent with each of the following IR spectra and related data. Show your work and your reasoning (i.e., identifymajor functional groups and and other structural fragments from the spectrum) in order to receive partial credit02. Molecular formula =C,H,0WAVELENGTH (MICRONS)2,51012uluuluul15100LT806040204000350030002500200018001600140012001000800FREQUENCY (CM")TRANSMITTANCE (PERCENT)

The degree of unsaturation, in accord with the given molecular formula, is 5. From the IR-data, The…

Answered: Provide a reasonable structure that is…

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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If you are setting up a standard curve using a UV spectrophotometer and a set of standards, and your unknown sample gives an absorbance value higher than your most concentrated standard. What would need to be done to accurately calculate the unknown sample concentration? I humble request to you please give the answer within 1 hrs so that I do my work.
Match the following molecules with their infrared spectrum on the next two pages by placing the answer on the provided lines. There are more molecules (six) than spectra (four). No explanation is necessary. NH₂ % Transmittance % Transmittance 100 90 80 70 60 50 40 30 100 90 80 70 60 50 40 30 20 II OH 4500 4250 4000 3750 3500 3250 III IV 3000 2750 2500 2250 2000 1750 1500 1250 1000 750 500 Wavenumbers (cm-1) FTIR NEAT 250 4500 4250 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 750 500 250 Wavenumbers (cm-1) V OH VI
Q1/ Which of these molecules best corresponds to the IR spectrum below, Explain ? a) pentane-2-one b) ethyl phenyl ketone c) propyl benzene d) butyric acid % Transmittance 100 50 0 4000 3000 2000 1-2-Butanone ,3-Butene -2-one 2-benzaldehyde. benzophenone 1500 Wavenumber (cm³) 1000 Q2/A) Identify the characteristic signals the you would expect in the diagnostic region of an IR spectrum of the following compounds. Explain? 500 B) Rank each of the bonds identified in order of increasing wave number, explain? N H OH H хори хто умри хрон это R-CEN
the mass spectrum, IR and 13 C and 1 HNMR spectra for an unknown organic molecule. Determine the structure ofthe molecule.
Draw structures for the three isomers 1-butyne, 1,3-butadiene, and 2-butyne. Explain how you would distinguish these compounds using IR spectroscopy. Give specific examples of peaks that would illustrate the differences.
4. Draw a possible molecule for each formula. based on Formula 1 5. Which structure do you think is correct? based on Formula 2 based on Formula 3
Match the peaks in this spectrum with the carbons on the structure below. Feedback: Your submission: B) I: 60.9 ppm You have incorrectly identified which atoms are responsible for the peaks in this spectrum. Review a correlation chart to predict chemical shifts. II: 25.1 ppm I: .2 рpm IV: 11.6 ppm Question 13 of 18 Match the peaks in this spectrum with the carbons on the structure below. A) I: 25.1 ppm II: 60.9 ppm II: 33.2 ppm IV: 11.6 ppm B) I: 60.9 ppm II: 25.1 ppm II: 33.2 ppm IV: 11.6 ppm C) CI I: 25.1 ppm II: 60.9 ppm I | |I IV III: 11.6 ppm IV: 33.2 ppm D) I: 11.6 ppm II: 60.9 ppm III: 25.1 ppm IV: 33.2 ppm
[References] The mass spectrum of octanoic acid, CH3(CH2)6COOH, exhibits a series of peaks differing by 14 amu at m/z 29, 43, 57, 71, 85, and 99. Draw the structure of the fragment resulting in the m/z 71 peak. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. • Do not use the square brackets tool in your answer. opy aste H,C earch 84%
A) alcohol B) alkane C) alkene D) alkyne 4000 3000 2000 1500 1000 500 E) aldehyde An IR spectrum of an unknown compound is shown below. Predict the primary structural feature present in this compound.
• Deduce a structure consistent with the IR spectrum. There may be more than one answer. 4000 3600 3200 2000 2400 2000 1900 1000 1400 1200 WAVENMBERS ICM 1600 600 400 STRANSMITTANCE
Analyze the following GCMS spectra. In your analysis of each GC-MS spectrum, include: a) The structure of the compound b) The molecular ion (M*) and its corresponding m/z value (if shown in the spectrum) c) The base peak and its corresponding m/z value d) Provide the fragmentation pattern of the molecule. Be sure to clearly indicate the cations and/or radical fragments and their corresponding m/z value from the spectrum. Compound Name: 2-Hexanone 120 43 100 80 57 20 100 85 27 29 71 59 49 50 51 52 53 s4 5 101 0 31 160 62 63 65 67 69 83 14 10 20 30 40 50 60 70 80 90 100 m/z Relative Intensity
Fill in the following by identifying the peaks you labeled in your spectrum. Assign the peaks to the functional group vibrations listed. More than one peak (label) may appear for a vibration of a functional group .Functional Group Vibration Aromatic C-H stretching vibration Ketone C O stretching vibration cop bending vibration on monosubstituted aromatic ring (phenyl)..

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