00:01
And this problem, it asks to identify functional groups in the following molecule.
00:05
Show the polarity of each.
00:08
So for the first one, this is the cyanate functional group with carbon triply bonded to nitrogen.
00:20
So we're going to show the polarity, and nitrogen, it's going to be more electronegative than carbon.
00:28
So if we bring up the periodic table and take a look at the electronegative.
00:36
We can see that carbon has an electronegativity of 2 .55 and nitrogen has an electrical negativity of 3 .04.
00:58
So if we calculate the difference, this ends up being greater than 0 .4, which means that this bond is polar with the negative dipole point towards the more electronegative atom, which is nitrogen.
01:11
Then we have ether.
01:13
So we have to take into account that this has a bent shape because of the two lone pairs.
01:18
So we have a net dipole that is going to be pointing towards the oxygen because the oxygen is more electrone negative than the carbons it is attached to.
01:38
Then for the next one, this is a ketone ester...