Homework Answers
In order to ascertain the force constant here, we are going to use the following formula:
But before this, we have to ascertain the frequency from the given signal:
We also have to ascertain the reduced mass:
Now that we have the value of frequency, we plug in all the values in the former equation:
Now, let's come to the period of vibration:
Add Answer to:
3.(16pts) The IR spectrum of H Br has an intense line at 2.60 x 10 cm!....
1. For the following problems consider these masses and constants: H = 1.008 amu; ?H =...
1. For the following problems consider these masses and constants: H = 1.008 amu; ?H = 2.014 amu; 1271 = 126.9 amu; 1 amu = 1.661 x 10-27kg a. For the infrared spectrum of 'H''I there is an intense line at 2309 cm". Calculate the force constant of 'H21. [12 points) b. What is the zero-point energy of 'H271? [6 points] c. Substituting a deuterium atom for the hydrogen atom in HI has no effect on the force constant. What...
Compound Z, C5H160. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm! 13...
Compound Z, C5H160. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm! 13 Mass spectrum: a few of the significant peaks include 128, W, 57 m/z. H-NMR: s, at's 2 H'S 5,34's th's PPM 13 C-NMR 3 signals 220 200 180 160 140 120 PPM 100 80 60 40 20 0
10. In the vibrational rotational spectrum of a diatomic molecule, the second line of the P...
10. In the vibrational rotational spectrum of a diatomic molecule, the second line of the P branch (J" = 2 = 1) is observed at 3100 cm and the third line of the R branch (J" = 2- )' = 3) is observed at 3160.cm! Assuming the molecule behaves as a rigid rotor and a harmonic oscillator, calculate the rotational constant (R) and the fundamental vibration wavenumber (V) for the molecule. Hint, you need two equations to solve for the...
A compound, CyH,202, has an IR spectrum showing a peak at 1710 cm. Its 'H NMR...
A compound, CyH,202, has an IR spectrum showing a peak at 1710 cm. Its 'H NMR spectrum has peaks at delta 1.3 (3 H, triplet), 4.3 (2 H, quartet), 6.5 (1 H, doublet), 7.4-7.6 (5 H, multiplet), and 7.7 (1 H, doublet). Draw its structure in the window below. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. . Do not include lone pairs in your answer. They will not be...
Below are the mass spectrum, IR spectrum, and 1H NMR spectrum for an unknown compound X....
Below are the mass spectrum, IR spectrum, and 1H NMR spectrum
for an unknown compound X. Identify and give the systematic name
for X. For full marks, rationalize every piece of
data.
Spectroscopy Lab Below are the mass spectrum, IR spectrum, and 1H NMR spectrum for an unknown compound X. Identify and give the systematic name for X. For full marks, rationalize every piece of data. 0.15 -0.45 A (9) 0.40 0.10 +0.35 10.05 ЛОО 0.30 - 0.00 0.25 4.19...
3. (3 pts.) Shown below is the IR spectrum 2-acetylcyclohexanone (the structure is provided in the...
3. (3 pts.) Shown below is the IR spectrum 2-acetylcyclohexanone (the structure is provided in the spectrum). 2- acetylcyclohexanone exists as an equilibrium mixture of diketone and two enol forms. Both the diketone and enol forms can be seen in the provide IR spectrum, although the 2 different enols cannot be distinguished. The IR spectra of both enols is essentially identical and so do not be concerned with distinguishing the enols, just assign peaks to a “generic" enol. On the...
Problem 3 IR Spectrum (quam 4000 3000 2000 1600 V (cm) 1200 800 Mass Spectrum So...
Problem 3 IR Spectrum (quam 4000 3000 2000 1600 V (cm) 1200 800 Mass Spectrum So base per 107/109 152/54 M 180/182 CgH9O2Br 40 80 120 160 mle 200 240 280 13C NMR Spectrum (50.0 CDC, on DEPT CHIC CHA over proton decoupled 200 160 120 80 400 8 (ppm) 'H NMR Spectrum (200 M COCI, solution 40 pm 10 9 8 7 6 5 4 3 2 8 (ppm)
λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value...
λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 4.
3. the followong compound has a molecular formula of C6H10O2 and has two stronf syretching bibration peaks in its FTIR spectrum at 1725 and 1200cm-1 giving rise to a specific functional group. what i...
3. the followong compound has a molecular formula of C6H10O2
and has two stronf syretching bibration peaks in its FTIR spectrum
at 1725 and 1200cm-1 giving rise to a specific functional group.
what is this molecule.
4. based on the mass spectrum below-which heteratom (S, Br,
Cl) is present in the molecule that produces this spectrum?
5. which functional group is present in the molecule that
produces the followong IR spectra?
please answer questions 3-5
Verizon 7:24 PM 3 of...
parent ion at m/z 102 (M*), IR peaks at 1740 and 1150 cm 10. Propose a...
parent ion at m/z 102 (M*), IR peaks at 1740 and 1150 cm 10. Propose a structure for a molecule whose mass spectrum shows which gave the following 'H NMR spectrum.) 6 1 septet 2 5 0 6 PPM 11. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 116 (M*) with at 1740 and 1150 cm1 which gave the following H NMR spectrum. base peak at m/z 43, IR peaks 6 1 2...
1. For the following problems consider these masses and constants: H = 1.008 amu; ?H = 2.014 amu; 1271 = 126.9 amu; 1 amu = 1.661 x 10-27kg a. For the infrared spectrum of 'H''I there is an intense line at 2309 cm". Calculate the force constant of 'H21. [12 points) b. What is the zero-point energy of 'H271? [6 points] c. Substituting a deuterium atom for the hydrogen atom in HI has no effect on the force constant. What...
Compound Z, C5H160. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm! 13 Mass spectrum: a few of the significant peaks include 128, W, 57 m/z. H-NMR: s, at's 2 H'S 5,34's th's PPM 13 C-NMR 3 signals 220 200 180 160 140 120 PPM 100 80 60 40 20 0
10. In the vibrational rotational spectrum of a diatomic molecule, the second line of the P branch (J" = 2 = 1) is observed at 3100 cm and the third line of the R branch (J" = 2- )' = 3) is observed at 3160.cm! Assuming the molecule behaves as a rigid rotor and a harmonic oscillator, calculate the rotational constant (R) and the fundamental vibration wavenumber (V) for the molecule. Hint, you need two equations to solve for the...
A compound, CyH,202, has an IR spectrum showing a peak at 1710 cm. Its 'H NMR spectrum has peaks at delta 1.3 (3 H, triplet), 4.3 (2 H, quartet), 6.5 (1 H, doublet), 7.4-7.6 (5 H, multiplet), and 7.7 (1 H, doublet). Draw its structure in the window below. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. . Do not include lone pairs in your answer. They will not be...
Below are the mass spectrum, IR spectrum, and 1H NMR spectrum
for an unknown compound X. Identify and give the systematic name
for X. For full marks, rationalize every piece of
data.
Spectroscopy Lab Below are the mass spectrum, IR spectrum, and 1H NMR spectrum for an unknown compound X. Identify and give the systematic name for X. For full marks, rationalize every piece of data. 0.15 -0.45 A (9) 0.40 0.10 +0.35 10.05 ЛОО 0.30 - 0.00 0.25 4.19...
3. (3 pts.) Shown below is the IR spectrum 2-acetylcyclohexanone (the structure is provided in the spectrum). 2- acetylcyclohexanone exists as an equilibrium mixture of diketone and two enol forms. Both the diketone and enol forms can be seen in the provide IR spectrum, although the 2 different enols cannot be distinguished. The IR spectra of both enols is essentially identical and so do not be concerned with distinguishing the enols, just assign peaks to a “generic" enol. On the...
Problem 3 IR Spectrum (quam 4000 3000 2000 1600 V (cm) 1200 800 Mass Spectrum So base per 107/109 152/54 M 180/182 CgH9O2Br 40 80 120 160 mle 200 240 280 13C NMR Spectrum (50.0 CDC, on DEPT CHIC CHA over proton decoupled 200 160 120 80 400 8 (ppm) 'H NMR Spectrum (200 M COCI, solution 40 pm 10 9 8 7 6 5 4 3 2 8 (ppm)
3. the followong compound has a molecular formula of C6H10O2
and has two stronf syretching bibration peaks in its FTIR spectrum
at 1725 and 1200cm-1 giving rise to a specific functional group.
what is this molecule.
4. based on the mass spectrum below-which heteratom (S, Br,
Cl) is present in the molecule that produces this spectrum?
5. which functional group is present in the molecule that
produces the followong IR spectra?
please answer questions 3-5
Verizon 7:24 PM 3 of...
parent ion at m/z 102 (M*), IR peaks at 1740 and 1150 cm 10. Propose a structure for a molecule whose mass spectrum shows which gave the following 'H NMR spectrum.) 6 1 septet 2 5 0 6 PPM 11. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 116 (M*) with at 1740 and 1150 cm1 which gave the following H NMR spectrum. base peak at m/z 43, IR peaks 6 1 2...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago