The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A hydrocarbon exhibits no bands above 3000 but gives weak absorption at 2200 cm1. Relative absorption intensity: (s)=strong, (m)=medium, (w)=weak. What functional class(es) does the compound belong to? List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly. Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm-1. .(Enter letters from the table below, in any order, with no The functional class(es) of this compound is(are) spaces or commas.) a. alkane (List only if no other functional class applies.) b. alkene h. amine c. terminal alkyne d. internal alkyne i. aldehyde or ketone j. carboxylic acid k. ester I. nitrile e. arene f. alcohol g. ether

The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A hydrocarbon exhibits no bands above 3000 but gives weak absorption at 2200 cm1. Relative absorption intensity: (s)=strong, (m)=medium, (w)=weak. What functional class(es) does the compound belong to? List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly. Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm-1. .(Enter letters from the table below, in any order, with no The functional class(es) of this compound is(are) spaces or commas.) a. alkane (List only if no other functional class applies.) b. alkene h. amine c. terminal alkyne d. internal alkyne i. aldehyde or ketone j. carboxylic acid k. ester I. nitrile e. arene f. alcohol g. ether

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...

See similar textbooks

Similar questions

21
Assignment 2 1- While cleaning out a laboratory shelf, you have made a mistake in labeling two bottles of propanol and propanone. To identify the molecular structure of the contents of the bottle, samples were submitted for analysis using infrared spectroscopy, based on the IR results, draw the molecular structure of the molecule that would correspond to the spectrum for that compound. Justify your answer Spectrum A Spectrum B 100 0.8- 0.6 4000 3000 2000 1500 1000 50 wavenumber (cm l) 3000 2000 Wavenumber icm-1) 1000 tansmitance (%)
Identify the structure and the peaks. Specify the important absorptions. Draw the correct structure of the unknown and find IHD.
The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A compound contains no nitrogen and exhibits absorption bands at 3300 (s) and 2150 (m) cm ¹¹. Relative absorption intensity: (s)=strong, (m)=medium, (w)=weak. What functional class(es) does the compound belong to? List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly. Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm³¹. The functional class(es) of this compound is(are) . (Enter letters from the table below, in any order, with no spaces or commas.) a. alkane (List only if no other functional class applies.) b. alkene c. terminal alkyne d. internal alkyne e. arene f. alcohol g. ether Submit Answer h. amine i. aldehyde or ketone j. carboxylic acid k. ester I. nitrile Retry Entire Group 9 more group attempts remaining
After analyzing the table, is the maximum absorption wavelength related to the polarity of the solvent? Describethe relationship, if any exists.
In Section 6.2d, we saw that the pK, of an acid is equal to the pH of the solution at which half the acid has dissociated into its conjugate base. UV-vis spectroscopy can be used to measure the relative concentrations involved if the acid or conjugate base absorbs UV-vis light. With this in mind, suppose that a particular acid has a Amax of 312 nm. The figure here shows the absorbance at that wavelength as a function of pH. What is the pk, of the acid? 3 4 6 7 8 10 11 12 pH Absorbance at 312 nm
question attached:
Compound C6H10O has the infrared spectrum shown below. Draw areasonable structure that is consistent with this data. Please explain work. Calculate the Rvalue first! -This compound has two common functional groups.
Using the information provided, list the approximate wavenumber ranges corresponding to the bands that you think are from C-H and O-H stretching (no need to distinguish which is which at this point). Which bands do you think result from different C-C and C-O stretching and bending vibrations? C-H and O-H: C-C:
1- While cleaning out a laboratory shelf, you have made a mistake in labeling two bottles of ethanol and acetic acid. To identify the molecular structure of the contents of the bottle, samples were submitted for analysis using infrared spectroscopy, based on the IR results, draw the molecular structure of the molecule that would correspond to the spectrum for that compound. Justify your answer 0.8 0.6- 0.4- 0.2 3000 2000 Wavenumber (cm-1) 1000 80 70 60 40 30- 20 10 2000 Wavenumbers (cm-1) II Transmitance
What are the major peaks (above 1600 cm-1 ) you would expect to see? Give approximate wavelength and functional assignment (i.e. C—H , C==O , etc.)
N-H bonds absorb IR radiation at very similar frequencies as O-H (alcohol) bonds. Oftentimes, they are not quite as large. Why?