00:01
To determine whether or not formaldehyde or methanol has the shortest carbon oxygen bond length, and which one has the weakest carbon oxygen bond, we need to draw the lewis structure.
00:14
Formaldehyde, which is c .h2, co, ends up having a lewis structure where we have two hydrogens attached to the carbon, one oxygen attached to the carbon, and then we're going to run out of electrons.
00:31
So we're going to have to share a pair of the electrons we would add to oxygen with the carbon, so the carbon has an octet.
00:43
For methanol, which is ch3 -o -h, we end up with the carbon in the middle and three hydrogens attached to it, and then an oxygen, and we have plenty of electrons, so no double bonds are required.
01:01
And this is our structure...