Refer to the following figure when answering the questions 19 and 20 below: (a) 100 A 80 - 60 40 20 - CH3(CH2)4CH3 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm-1) 19. The valleys are generated due to: a. Movement of molecular ions through a magnetic field b.Absorbance by electrons c. Vibration of bonds in molecules d.Spinning of hydrogen molecules in molecules e. Spinning of carbon atoms in molecules 20. This type of spectral analysis is used for: a. Determining molecular mass b.Determining functional groups present in the molecule c. Determining the empirical formula d. Determining the relative positions of hydrogens in the molecule Transmittance (%)

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Chapter1: Chemical Foundations
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Refer to the following figure when answering the questions 19 and 20 below:
(a)
100
* 80
60
40
20
CH3(CH2)4CH3
4000
3500
3000
2500
2000
1500
1000
500
Wavenumber (cm-1)
19. The valleys are generated due to:
a. Movement of molecular ions through a magnetic field
b. Absorbance by electrons
c. Vibration of bonds in molecules
d.Spinning of hydrogen molecules in molecules
e. Spinning of carbon atoms in molecules
20. This type of spectral analysis is used for:
a. Determining molecular mass
b.Determining functional groups present in the molecule
c. Determining the empirical formula
d. Determining the relative positions of hydrogens in the molecule
Transmittance (%)
Transcribed Image Text:Refer to the following figure when answering the questions 19 and 20 below: (a) 100 * 80 60 40 20 CH3(CH2)4CH3 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm-1) 19. The valleys are generated due to: a. Movement of molecular ions through a magnetic field b. Absorbance by electrons c. Vibration of bonds in molecules d.Spinning of hydrogen molecules in molecules e. Spinning of carbon atoms in molecules 20. This type of spectral analysis is used for: a. Determining molecular mass b.Determining functional groups present in the molecule c. Determining the empirical formula d. Determining the relative positions of hydrogens in the molecule Transmittance (%)
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