Identify the key fragment structures of 4'-Bromoacetophenone based on the peaks of its attached mass spectrum.

G.5 Mass spectra were acquired for 1,4-diethylbenzene and 1-methyl-4- propylbenzene. The base peak of spectrum A is at m/z = 105 and that of spectrum B is at mlz = 119. Match each spectrum to its compound.

Which compound would produce the mass spectrum?

Which of the following is true about the base peak in mass spectrometry? It has the largest peak height in the spectrum. It has the highest m/z value of all the peaks in the spectrum. The m/z value equals the molecular weight of the compound. The m/z value corresponds to a very stable carbanion.

Th emajor fragmentation of the following molecule occurs through the Mclafferty rearrangement . which of the following is expected to be the base peak in the mass spectrum?  I cleaved the compound on the bonds adjacent to the alpha and calculated the mass for the biggest fragment, which was m/z= 73. The answer is actually m/z =  86. Can someone give me a step by step on how to do this problem?

the electron ionization mass spectrum of a small neutral molecule shows a base peak at 27 and a smaller peak at 26 with a relative abundance of 20%. Deduce the structure of the unknown compound.  Draw a cation that corresponds to this peak.

Identify two peaks that are expected to appear in the mass spectrum of 3-pentanol. For each peak, identify the fragment associated with the peak.

Please explain and give the correct answer

Propose a molecular formula for a compound that exhibits the given peaks in its mass spectrum. Draw a possible structure. M*• at m/z = 136, relative height = 12.1% (M+1)*• at m/z = 137, relative height = 1.2%

Assign molecules B, C, D and F to the correct mass spectrum and provide the structure of thebase peak. draw the assigned molecules