Peak at 29 represents the carbocation +CH2CH3
as its mass is coming out to be 29
12+2+12+3
only charged species are detected in mass spectra .
this is formed after the simple cleavage of molecule , the other part of molecule goes as radical which is undetected.
sro Refer to the mass spectrum of 2-methylbutae shown below to za tebe 100- 80 60...
Please match the compound to its spectrum and explain why cpd 22 Spectrum A 100- 60 40 20 100 125 50 75 m/z Spectrum B 100 80- 60 40 20- 10 20 30 40 50 60 70 0 90 100 110 120 m/z (6 points) Match EOT Spectrum C 100- 80- 60 40 75 100 125 50 m/z Spectrum D 100 80 60- 40 20- 25 50 75 100 125 m/z Spectrum E 100 80 60 20 10 20 30...
The mass spectrum of 3-bromopropanoic acid is shown below. Four peaks are labeled with A, B, C, and D. Select the label for the base peak(s). 45 55 18 26 on 10 20 30 40 50 60 70 80 90 100 MIZ 110 120 130 140 150 160 170 The mass spectrum of 3-bromopropanoic acid is shown below. Four peaks are labeled with A, B, C, and D. Select the label for the M peak(s) (unfragmented parent). 135 27 45...
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....
Match each compound (d) to its mass spectrum (1-4). ) Relativel y 30 40 50 60 70 80 90 100 110 120 18 Mars plastic 2 STAEDTLER Revente 20 30 40 50 60 70 80 90 100 110 120 130 Relative intensy 10 20 30 40 50 60 70 80 90 100 110 120 130
Use the mass spectrum and either the NMR spectrum or the IR spectrum to deduce the structure of the following compound (c) C8HO3H NMR, 300 MHz, 6.1 ppm (singlet, 2H), 6.9 ppm (doublet, 1H), and 7.3 ppm (singlet, 1H), 7.4 ppm (doublet, 1H), 9.8 ppm (singlet, 1H); significant IR absorbances at 1687, 1602, 1449, 1264, 1038, 929, and 815 cm1. 100 149 (150) 80 60 40 121 63 20 65 91 0 15 20 25 30 35 40 45 50...
The mass spectrum of 3-bromopropanoic acid is shown below. Four peaks are labeled with A, B, C, and D. Select the label for the M peak(s) (unfragmented parent). 135 27 45 55 18 26 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 MIZ
Deduce the ester compound structure with M/Z=136 on this mass spectrum; significant peaks at 51, 77, 105, 136. Relative Abundance M(136) 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 mz
is is the mass spectrum of 2-pentanol. 100 MS-NW-8471 6 80 60 40 20 omt 10 20 30 40 60 70 80 50 m/z Provide a reasonable fragmentation pathway for the indicated fragments. Make sure that you discuss the relative intensity of the same fragments. | m/z 27.0 7.6 29.0 5.3 31.0 5.0 41.0 5.8 43.0 13.7 44.0 7.5 45.0 100.0 55.0 18.7 73.0 7.1
110 2. (1 points) The mass spectrum of 2-methyl-3-pentanol is shown below. Identify the fragments. 100- MS-NU-5456 Relative Intensity 0- t THAT it 20 TH 40 E 60 TITTTTTTTT 100 50 70 m/z
2. Match the electron impact (El) mass spectrum with the correct structure from the choices below. ectra of the following molecules (write the correct letter in the upper left-hand corner of the spectra). Draw the structure of the indicated fragments (*) A OH *(43) *(71) * (43) 100- MS-NU-O1 Relative Intensity Relative Intensity 10 20 30 40 50 70 80 90 100 10 30 40 60 70 50 /z 60 /z m m