1. Give the fragment at m/z 42 in the mass spectrum of propan-1-ol.
a) CH3CH=CH2+
b) CH3CH=CH2•
c) CH3CH=CH2—
d) CH3CH=CH2
2. Identify a possibility for a fragment at m/z 43 in the mass spectrum.
a) CH3CH2CH2+
b) CH3CH2CH3+
c) CH2=C=CH2+
d) CH3CH=CH2+
1. Give the fragment at m/z 42 in the mass spectrum of propan-1-ol. a) CH3CH=CH2+ b) ...
18. The mass spectrum of 2-methylpentan-3-ol is shown below. Draw the structure of the fragment ions of m/z= 73 and 59. Relative abundance (%) TTT 10 20 80 80 100 120 mi
Fill in the box for Methyl acetylacetate Mass spectrum (5 pts): m/z value Charged Fragment Fragment Lost 116 N/A 85 43
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 43. Include any hydrogen atoms and the positive charge.
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 71. Include any hydrogen atoms and the charge. Given the parent compound, draw the mass spectrum fragment that is observed at m/z 71. Include any hydrogen atoms and the charge.
Show what fragment is responsible for the base peak at m/z 44 in the mass spectrum of butan-2-amine
The mass spectrum of pentanal shows a peak at m/z 43. The molecular weight of pentanal is 86. Draw the electron flow and products for the formation of the cation, m/z 43 and radical fragment. ? + ? M: 86 m/z 43 cation (M-43) radical
Give one fragment in the mass spectrum and one peak in the IR spectrum that could be used to distinguish between these two isomers: Give one fragment in the mass spectrum and one peak in the IR spectrum that could be used to distinguish between these two isomers: CH O CH (O H3C H3C H3C CH 3,3-dimethylbutanal 4-methylpentan-2-one (Designate which compound will show that diagnostic fragment or peak by preceding the value with the letter of the compound, i.e. "a47"...
References) Give one fragment in the mass spectrum and one peak in the IR spectrum that could be used to distinguish between these two isomers: CH3 HаC a. HаС b. "CHз CH3 4-methylpentan-2-one 3-methylpentanal (Designate which compound will show that diagnostic fragment or peak by preceding the value with the letter of the compound, ie. "a47" or "b1730". Do not include any units.) Mass spectrum: IR spectrum Characteristic IR Absorptions of Some Functional Groups Absorption (cm) Functional Group Absorption (cm...
References The mass spectrum of octanoic acid, CH3(CH2)COOH, exhibits a series of peaks differing by 14 amu at m/ 29, 43, 57, 71, 85, and 99 1 pt Draw the structure of the fragment resulting in the m/z 57 peak 1 pt 1 pt .You do not have to consider stereochemistry You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw one. .Do not use the square brackets tool in...
Question 2. In the mass spectrum of 3,3-dimethyl-2-butanone, the base peak will occur at m/z A) 43 B) 58 C) 84 D) 85 E) 100