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A carbon-bromine bond shows a sharp IR absorption at a frequency of 563.0 cm". Given the masses below what is the force constant for the C-Br bond? 6. mc = 12.011 amu mBr = 79.904 amu C) 1.674 x 10°dyn/cm A) 203.8 N/m B) 196.5 N/m D) 2.634 х 10°dyn/cт

A carbon-bromine bond shows a sharp IR absorption at a frequency of 563.0 cm". Given the masses below what is the force constant for the C-Br bond? 6. mc = 12.011 amu mBr = 79.904 amu C) 1.674 x 10°dyn/cm A) 203.8 N/m B) 196.5 N/m D) 2.634 х 10°dyn/cт

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter20: Molecular Spectroscopy And Photochemistry
Section: Chapter Questions
Problem 31P
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A carbon-bromine bond shows a sharp IR absorption at a frequency of 563.0 cm'. Given the masses below what is the force constant for the C-Br bond? 6. mc = 12.011 amu mBr = 79.904 amu A) 203.8 N/m B) 196.5 N/m C) 1.674 x 10dyn/cm 2.634 x 10°dyn/cm D) Using the character table for ammonia determine the characters of the reducible representation that describes all molecular motion of ammonia (TrOT) 7. The characters are : 3 A) B) C) D) 1 The characters are : 4 The characters are : 5 The characters are : 12 0 1 -1 1 2
Transcribed Image Text:A carbon-bromine bond shows a sharp IR absorption at a frequency of 563.0 cm'. Given the masses below what is the force constant for the C-Br bond? 6. mc = 12.011 amu mBr = 79.904 amu A) 203.8 N/m B) 196.5 N/m C) 1.674 x 10dyn/cm 2.634 x 10°dyn/cm D) Using the character table for ammonia determine the characters of the reducible representation that describes all molecular motion of ammonia (TrOT) 7. The characters are : 3 A) B) C) D) 1 The characters are : 4 The characters are : 5 The characters are : 12 0 1 -1 1 2
Which of the following statements about the IR spectrum of but-2-yne do you expect to be true? The spectrum shows a strong, sharp absorption at 3263cm1. The spectrum shows a strong, sharp absorption at 2157cm'. 3. 1. 2. The spectrum shows absorptions at 2970cm'. 4. The spectrum shows absorptions at 1660cm-'. The spectrum shows a band in the 600-700 cm' range. 5. A) 1,2 and 3 В) 2, 3 and 5 C) 1, and 2 D) Only 3 E) 2 and 4 The C=0 stretching frequency of cyclobutanone is higher than that of cyclohexanone BECAUSE it exhibits less ring stress. The statement is entirely true A) B) The first statement is true and the second statement is false The first statement is false and the second statement is true D) E) Both statements are true but the BECAUSE is false The statement is entirely false
Transcribed Image Text:Which of the following statements about the IR spectrum of but-2-yne do you expect to be true? The spectrum shows a strong, sharp absorption at 3263cm1. The spectrum shows a strong, sharp absorption at 2157cm'. 3. 1. 2. The spectrum shows absorptions at 2970cm'. 4. The spectrum shows absorptions at 1660cm-'. The spectrum shows a band in the 600-700 cm' range. 5. A) 1,2 and 3 В) 2, 3 and 5 C) 1, and 2 D) Only 3 E) 2 and 4 The C=0 stretching frequency of cyclobutanone is higher than that of cyclohexanone BECAUSE it exhibits less ring stress. The statement is entirely true A) B) The first statement is true and the second statement is false The first statement is false and the second statement is true D) E) Both statements are true but the BECAUSE is false The statement is entirely false
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