00:01
Looking at a mass spectrum figure, a graph.
00:05
So the first question is that what is the molecular ion in above the mass spectrum? and then you have four peaks, 51, 77, 112, and 114.
00:16
So the molecular ion is the mass spectrum would respond to the peak with the highest mz value, which in this case is 114.
00:35
Now the molecular ion is the intact charged molecule and this is typically the highest peak in the mass spectrum, representing the mass of the compound.
00:47
So you can see that the highest one is actually 114mz.
00:55
Second, which heteroatom exist in above mass spectrum? so from there, we know that these two are halogen.
01:08
So because you have two peaks, one is at 112 and the other is 114.
01:17
So this means that you must have two different isotopes that you will have actually two different peaks...