00:01
To determine the four bond angles, we first need to complete the lewis structure by adding in the lone pairs.
00:08
There are only lone pairs that need to be added in on the oxygens, on this oxygen, and this oxygen.
00:18
These are the four bond angles they want us to determine.
00:21
Using the vesper model, we can predict based upon the number of electron groups surrounding the central atom, what the structure is, what the molecular structure is, around that central atom.
00:33
And from that, determine the bond angle.
00:36
There are four electron groups around carbon.
00:38
This corresponds to a tetrahedral structure.
00:41
A tetrahedral structure has a bond angle of 109 .5 degrees.
00:46
So all of the bonds around this carbon are 109 .5...