Homework Answers
Answer 27: Molecular ion peak at m/z 123
Answer 24: There are 3 kind of protons present in the spetrum as there are three different type of non aromatic peaks are present. One at 3.8 ppm, that could be due to O-CH- proton. Other peaks at 2.9 ppm, 2.45 ppm.
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UD.---UCH2CH2H QUESTION 27 Consider the mass spectrum of this molecule. What is the m/z of the...
15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks...
15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks have intensities of 100, 6.8, and 31.8 respectively. Use the information provided to determine the formula of the compound 100 MS-NW-5495 80 60 40 20 шшшl 110 10 20 30 40 50 60 70 80 90 100 m/z Relative Intensity
15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks have intensities of 100, 6.8, and 31.8 respectively....
please help Molecule B Mass Spectrum 0.0 20 40 60 80 100 m/z R Spectrum 1H NMR Spectrum PPM Which types of bonds can be identified in the IR spectrum of Molecule B? I Select ] By identifying...
please help
Molecule B Mass Spectrum 0.0 20 40 60 80 100 m/z R Spectrum 1H NMR Spectrum PPM Which types of bonds can be identified in the IR spectrum of Molecule B? I Select ] By identifying the molecular ion, determine which composition is consistent with the mass spectrum of B [Select ] How many hydrogen environments are there in Molecule B? Select] The peak at 3.8 ppm in the 1H NMR spectrum of Molecule B is most likely...
1. Consider the Mass Spectrum below to answer the following questions: MS-NU-S495 Relative Intensity 0- 10...
1. Consider the Mass Spectrum below to answer the following questions: MS-NU-S495 Relative Intensity 0- 10 prote 20 30 40 t 50 to 60 70 m/z 80 90 100 110 a. (1 point) What is the m/z of the molecular ion peak: b. (1 point) What is the m/z value of the base peak: c. (2 point) Explain why do we observe the peak at m/z = 114 d. (2 points) The molecular formula of this compound is C.HSX. Identify...
Consider the mass spectrum below (taken from: Silverstein, Robert M.; Webster, Francis X. Spectro...
Consider the mass spectrum below (taken from: Silverstein, Robert M.; Webster, Francis X. Spectrometric Identification of Organic Compounds, 6th edition; John Wiley & Sons, New York: 1998). What is the formula of the compound? Hints: (a) the compound contains only C, H, and O; (b) use the ratio of the M+1 peak to the M* peak to decide on the number of carbons MASS 100- 90 80 M (122)-35.3 (100% of M) M 1 (123)3.12 M + 2 (124) 0.23...
I am not understanding this assignment at all. Any assistance is very much appreciated. Mass Spectrum: Molecular Ion m/z value and structure of the Molecular Ion. Base Peak m/z value and structure of...
I am not understanding this assignment at all. Any assistance is
very much appreciated.
Mass Spectrum:
Molecular Ion m/z value and structure of the Molecular Ion.
Base Peak m/z value and structure of that ion
One other significant peak m/z value and structure of that
ion
C13 NMR Spectrum-- Draw Structure of Compound
on the C13 NMR spectrum and identify each signal with the
appropriate Carbon.
Proton NMR Spectrum-- Draw Structure of
Compound on the Proton NMR spectrum and identify...
The molecular weight of a compound is typically indicated by the heaviest peak on a mass...
The molecular weight of a compound is typically indicated by the heaviest peak on a mass spectrum, which i presumed to correspond to the molecular ion (M*). For smaller compounds, the heaviest peak tends to also be the most intense peak. The lighter peaks in the spectrum result from fragmentation of the molecule into smaller ions. Since peak intensity correlates to the relative stability of the ions produced, the peaks of the ionized fragments can be more intense than the...
Please draw the unknown molecule presented in the specs, Thanks!!! Mass Spectrum (not shown): [M] = 169 (100%) m/z IR S...
Please draw the unknown molecule presented in the specs,
Thanks!!!
Mass Spectrum (not shown): [M] = 169 (100%) m/z IR Spectrum (not shown): 2985, 2250 (m), 1745 cm1 (all listed are strong (s) unless otherwise indicated) H NMR Spectrum (400 MHz, CDC I3, 25 °C) 5 3 PPM 2H 2H 2H 6H 3H C NMR Spectrum (with DEPT), proton-decoupled (125 MHz, CDCI3, 25 °C) (CH2) (C) (CH3) (CH2) (CH3) (C) (C) (CH2) 180 160 80 140 120 100 PPM 60...
What is the structure of this compound? MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190...
What is the structure of this compound?
MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190 m/z 198-less than 1% 80 60 40 20 197 0.0t l.1 0.0 40 80 120 160 200 m/z H NMR spectrum, CDCls, 600 MHz 3.75 3.703 3.60 34 3.3 Chemical Shft (ppm) 3.65 3.55 Chemical Shft (ppm) 70 4.65 4.60 Chemical Shift (ppm) 1.26 1.24 122 120 1.18 1.16 Chemical Shift (ppm) 4.8 4.6 4.4.2 4.0 3.8 3.6 34 3.2 3.0 2.826 24 22...
Refer to the table below. What is the total cost of this firm when it doesn't...
Refer to the table below. What is the total cost of this firm when it doesn't produce any output? The following table shows the total output, variable costs, fixed costs, total costs, average total costs, and marginal costs of a firm, with some cells in the table intentionally left blank. Total Output Variable Costs Average Total (units) ks) Fixed Costs ($) Total Cost ($) Cost (5) Marginal Cost (S) 100 n.a. 10 5 10 122 17 8.24 Refer to the...
please help me determine my unknown my empirical and molecular formula is C8H10O my melting point...
please help me determine my unknown
my empirical and molecular formula is C8H10O
my melting point is 61-69 degrees C
i need
-peaks labeled (base and ion peaks)
-drawn structure
also need
one fragment ion peak identified
functional groups identified
THANKS! ill venmo you literally HELP
53 46! 81 Masses and Abundances 26 71 39 91 | 46 31 27 64 | 0 2 1 1 | 29 81 41 27 | 48 TE I 3 It | 2 21...
15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks have intensities of 100, 6.8, and 31.8 respectively. Use the information provided to determine the formula of the compound 100 MS-NW-5495 80 60 40 20 шшшl 110 10 20 30 40 50 60 70 80 90 100 m/z Relative Intensity
15. The mass spectrum of a compound appears below. The molecular ion, M+1, and M+2 peaks have intensities of 100, 6.8, and 31.8 respectively....
please help
Molecule B Mass Spectrum 0.0 20 40 60 80 100 m/z R Spectrum 1H NMR Spectrum PPM Which types of bonds can be identified in the IR spectrum of Molecule B? I Select ] By identifying the molecular ion, determine which composition is consistent with the mass spectrum of B [Select ] How many hydrogen environments are there in Molecule B? Select] The peak at 3.8 ppm in the 1H NMR spectrum of Molecule B is most likely...
1. Consider the Mass Spectrum below to answer the following questions: MS-NU-S495 Relative Intensity 0- 10 prote 20 30 40 t 50 to 60 70 m/z 80 90 100 110 a. (1 point) What is the m/z of the molecular ion peak: b. (1 point) What is the m/z value of the base peak: c. (2 point) Explain why do we observe the peak at m/z = 114 d. (2 points) The molecular formula of this compound is C.HSX. Identify...
Consider the mass spectrum below (taken from: Silverstein, Robert M.; Webster, Francis X. Spectrometric Identification of Organic Compounds, 6th edition; John Wiley & Sons, New York: 1998). What is the formula of the compound? Hints: (a) the compound contains only C, H, and O; (b) use the ratio of the M+1 peak to the M* peak to decide on the number of carbons MASS 100- 90 80 M (122)-35.3 (100% of M) M 1 (123)3.12 M + 2 (124) 0.23...
I am not understanding this assignment at all. Any assistance is
very much appreciated.
Mass Spectrum:
Molecular Ion m/z value and structure of the Molecular Ion.
Base Peak m/z value and structure of that ion
One other significant peak m/z value and structure of that
ion
C13 NMR Spectrum-- Draw Structure of Compound
on the C13 NMR spectrum and identify each signal with the
appropriate Carbon.
Proton NMR Spectrum-- Draw Structure of
Compound on the Proton NMR spectrum and identify...
The molecular weight of a compound is typically indicated by the heaviest peak on a mass spectrum, which i presumed to correspond to the molecular ion (M*). For smaller compounds, the heaviest peak tends to also be the most intense peak. The lighter peaks in the spectrum result from fragmentation of the molecule into smaller ions. Since peak intensity correlates to the relative stability of the ions produced, the peaks of the ionized fragments can be more intense than the...
Please draw the unknown molecule presented in the specs,
Thanks!!!
Mass Spectrum (not shown): [M] = 169 (100%) m/z IR Spectrum (not shown): 2985, 2250 (m), 1745 cm1 (all listed are strong (s) unless otherwise indicated) H NMR Spectrum (400 MHz, CDC I3, 25 °C) 5 3 PPM 2H 2H 2H 6H 3H C NMR Spectrum (with DEPT), proton-decoupled (125 MHz, CDCI3, 25 °C) (CH2) (C) (CH3) (CH2) (CH3) (C) (C) (CH2) 180 160 80 140 120 100 PPM 60...
What is the structure of this compound?
MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190 m/z 198-less than 1% 80 60 40 20 197 0.0t l.1 0.0 40 80 120 160 200 m/z H NMR spectrum, CDCls, 600 MHz 3.75 3.703 3.60 34 3.3 Chemical Shft (ppm) 3.65 3.55 Chemical Shft (ppm) 70 4.65 4.60 Chemical Shift (ppm) 1.26 1.24 122 120 1.18 1.16 Chemical Shift (ppm) 4.8 4.6 4.4.2 4.0 3.8 3.6 34 3.2 3.0 2.826 24 22...
Refer to the table below. What is the total cost of this firm when it doesn't produce any output? The following table shows the total output, variable costs, fixed costs, total costs, average total costs, and marginal costs of a firm, with some cells in the table intentionally left blank. Total Output Variable Costs Average Total (units) ks) Fixed Costs ($) Total Cost ($) Cost (5) Marginal Cost (S) 100 n.a. 10 5 10 122 17 8.24 Refer to the...
please help me determine my unknown
my empirical and molecular formula is C8H10O
my melting point is 61-69 degrees C
i need
-peaks labeled (base and ion peaks)
-drawn structure
also need
one fragment ion peak identified
functional groups identified
THANKS! ill venmo you literally HELP
53 46! 81 Masses and Abundances 26 71 39 91 | 46 31 27 64 | 0 2 1 1 | 29 81 41 27 | 48 TE I 3 It | 2 21...
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