Describe7 marksChallenge
The mass spectrum of an organic compound, which contains carbon, hydrogen, and a single halogen atom, is recorded. The spectrum shows a molecular ion peak at m/e = 122 with a relative abundance of 100%. There is also an [M+1]+ peak at m/e = 123 with a relative abundance of 9.9% and an [M+2]+ peak at m/e = 124 with a relative abundance of 33%.
Describe how this mass spectrum can be used to deduce: (i) the relative molecular mass of the compound, (ii) an estimate of the number of carbon atoms in the molecule, (iii) the identity of the halogen present.
Do not perform any calculations.