Can i get help with this problem please Set 2 please On the following pages are three sets of three IR spectra. For the problem set, eachgroup of three spectra has to be matched with the three structures. Rely on yourknowledge of specific absorptions for specific functional groups to identify thesecompounds correctly. Indicate the important peaks in each spectrum, and show yourwork and logic.2.NH2NH2Set 1CpolyethylenepolycarbonateSet 2polystyreneCH3CH3CA

Answered: On the following pages are three sets…

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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Can i get help with this problem please Set 2 please

On the following pages are three sets of three IR spectra. For the problem set, each
group of three spectra has to be matched with the three structures. Rely on your
knowledge of specific absorptions for specific functional groups to identify these
compounds correctly. Indicate the important peaks in each spectrum, and show your
work and logic.
2.
NH2
NH2
Set 1
C
polyethylene
polycarbonate
Set 2
polystyrene
CH3
CH3
C
A

Expert Solution

Step 1

IR spectroscopy means infrared spectroscopy which is useful for identifying the substances and confirming their identity. The most useful IR region for a spectroscopy lies between $4000 - 670 c m^{- 1}$ .

The region below $1500 c m^{- 1}$ is the fingerprint region and above is the functional group region.

Generally the base values are:

$O - H = 3600 c m^{- 1} N - H = 3400 c m^{- 1} C - H = 3000 c m^{- 1} C \equiv N = 2250 c m^{- 1} C \equiv C = 2150 c m^{- 1} C = O = 1715 c m^{- 1} C = C = 1650 c m^{- 1} C - O = 1100 c m^{- 1}$

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