1. Given the parent compound, chlorobenzene, draw the mass spectrum fragment that is observed at m/z 77. Include any hydrogen atoms and the charge. H H C H H H 2. Given the parent compound, isobutyl-benzene, draw the mass spectrum fragment that is observed at m/z 91. Include any hydrogen atoms and the charge. CH3 CH3

How do I predict the M, M+2. and M+4 with this information?

A compound containing only carbon, nitrogen, oxygen, and hydrogen contains four carbon atoms. If the M+ peak in its mass spectrum appears at m/z = 87, then how many nitrogen atoms does it contain?

2. In a mass spectrum of a compound, the following data (intensity) is given. M+ = 80, M+ +1 = 8.8, M+ +2 = 26. This compound will have carbons and will contain a a. 8, sulfur b. 9, silicon c. 10, chlorine d. 11, bromine

Using the rule of 13, what is a possible formula for M=113 (100%) on a mass spectrum? all of the above are possible molecular formulas CH130 CH15N

Rel. Intensity MASS SPECTRUM 100- 80- 60- 40- 20- 0.0- 20 40 60 80 100 120 m/z The compound contains chlorine. The compound contains bromine. ○ The compound contains both bromine and chlorine. O The compound contains only carbon, hydrogen, and oxygen. ○ The compound contains only carbon and hydrogen.

Pls help ASAP, thank you! "Using the rule of 13, what is a possible formula for M=80 (100%) on a mass spectrum?"

The following figure shows the mass spectrum of a hydrocarbon. i. Propose a molecular formula for this compound assuming that the molecular ion can be detected. ii. Draw the structural formulae of all possible isomers of this hydrocarbon.

You have a unknown compound you need to identify - its El mass spectrum shows a peak at m/z=187 with an intensity of 84, and a peak at m/z = 188 with an intensity of 11. There are no peaks with m/z > 200. What does this %3D mean? The compound contains approximately 30 carbon atoms The compound probably contains a nitrogen atom The compound probably contains a bromine atom Not enough information to tell anything

you have an uknown compound you need to identify its EI mass spectrum shows a peak at m/z 198 with an intensity of 57, and a peak at m/z 200 with an intensity of 19. there are no peaks with m/z 200. what does this mean? A. the compound contains a nitrogen atom B. the compound contains approximately 30 carbon atoms C. the compound contains a bromine atom D. the compound contains a chlorine atom