00:01
All right, so we want to compare the carbon oxygen bond lengths in formate, h -co2 -1, methanol, ch -30h, and carbonate, co3 -2 -minus.
00:21
So first let's draw the lewis structure.
00:23
So formate is carbon.
00:25
It has two bonds to oxygen and one bond to hydrogen, and then one of these is a double, and the other is a single, and that's where the negative charge lies.
00:35
And then we can represent this as resonance, and the actual structure is going to be a hybrid of the two resonance forms.
00:47
Like so.
00:49
Methanol, so we have carbon bonded to three hydrogens, and then an oxygen, and then another hydrogen.
00:59
And then carbonate, so we have a c double bond o, and then the rest are single bonded, and there's minus charges.
01:11
Like so, and we can move the position of the double bond to get the different resonance forms.
01:28
And in this case, we have not two, but three different resonance forms.
01:42
Most tedious part is always drawing the lone pairs.
01:44
There we go.
01:45
All right.
01:46
Technically, there should be brackets because these are charged just for the sake of correctness.
02:07
All right.
02:08
So now we want the bond length...