The experiment wAs preformed using a recrystallization of salicylic acid. The IR was preformed using a KBR pellet method Re-state the diagnostic peaks from the results, this time with the intention of comparing the experimental to literature diagnostic values as well as fingerprint regions to provide evidence to answer your hypothesis. After comparing your values, you must discuss what conclusions you obtained (i.e. was there evidence to support that your compound is pure?)

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
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The experiment wAs preformed using a recrystallization of salicylic acid. The IR was preformed using a KBR pellet method Re-state the diagnostic peaks from the results, this time with the intention of comparing the experimental to literature diagnostic values as well as fingerprint regions to provide evidence to answer your hypothesis. After comparing your values, you must discuss what conclusions you obtained (i.e. was there evidence to support that your compound is pure?)
4000
3500
71:
8238.846
O-H
Stretching
to you
Salicylic
acid
Transmission / Wavenumber (cm-1)
ile #1= INSTRUMENTLAB78.TRANSMITTANCE
2859.901
2500
Symmetric
-00)
1983.424
Stretching
(0-3)
Stret
C=O
2000
1526.657
1578.952
1613,008
1689.781
1384.128
1324.853
1500
1465 333 4339421
1295.345
210.494
249.093
1189.181
C=C
Phenoli
Stretching
1083.263
-964.9533
1156,246
1030.891
867.7981
-892.5221
852.896
стон
1000
Phenolic
Stretch
C=Stretching
785.3174
=C-H bending
66975883
59.5978
Paged Y-Zoom CURSOR
2022-10-04 2:02 PM Res=4
Transcribed Image Text:4000 3500 71: 8238.846 O-H Stretching to you Salicylic acid Transmission / Wavenumber (cm-1) ile #1= INSTRUMENTLAB78.TRANSMITTANCE 2859.901 2500 Symmetric -00) 1983.424 Stretching (0-3) Stret C=O 2000 1526.657 1578.952 1613,008 1689.781 1384.128 1324.853 1500 1465 333 4339421 1295.345 210.494 249.093 1189.181 C=C Phenoli Stretching 1083.263 -964.9533 1156,246 1030.891 867.7981 -892.5221 852.896 стон 1000 Phenolic Stretch C=Stretching 785.3174 =C-H bending 66975883 59.5978 Paged Y-Zoom CURSOR 2022-10-04 2:02 PM Res=4
Table 1: Experimental IR peaks compared to literature peaks for salicylic acid
IR peak value- Literature
IR peak value-
Experimental cm-¹
cm-1
3240
2864
1680
1613
1405-1484
1386
1297
1161-1251
Functional groups
O-H stretching
C-H
C=O (COO) asymmetric
C=C (phenolic stretching
C=C stretching
Symmetric stretching
COO (C-O) stretching
C-OH (phenolic
stretching)
C-H bending
I
661-760
3239
2860
1660
1613
1444-1483
1384
1295
1156-1249
660-780
Transcribed Image Text:Table 1: Experimental IR peaks compared to literature peaks for salicylic acid IR peak value- Literature IR peak value- Experimental cm-¹ cm-1 3240 2864 1680 1613 1405-1484 1386 1297 1161-1251 Functional groups O-H stretching C-H C=O (COO) asymmetric C=C (phenolic stretching C=C stretching Symmetric stretching COO (C-O) stretching C-OH (phenolic stretching) C-H bending I 661-760 3239 2860 1660 1613 1444-1483 1384 1295 1156-1249 660-780
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