00:01
Okay, so here we want to know what kinds of protons or how many different kinds of protons there are in each compound.
00:11
So here we want to look and see if there's any symmetry in the molecule.
00:15
So we do have protons on each of these carbons beneath the bromines, but they're in similar environments.
00:27
So we can kind of split this down the middle because of symmetry.
00:32
So these protons will give us one signal, and these protons will give us one signal.
00:38
So overall, there's two unique protons in this molecule, or two different kinds of protons.
00:53
All right, so next we're looking at this one.
00:58
There is one ch here, a ch2, a ch2, and a ch3 here.
01:10
But our three ch3s on the end, they're all attached to a ch, which is attached to a ch2 and a ch2 and a ch3.
01:16
So each of these ch3s on the end are all going to be equivalent.
01:22
These three...