00:02
There, for this question, we are asked to draw the lewis structure for two hydroxy propane nitrile.
00:09
And we're given the formula of c3h5no.
00:12
So the first thing we want to do is calculate how many valence electrons we have at our disposal, how many dots there should be in our finished structure.
00:19
So to do that, let's look at each of these elements.
00:22
We have three carbons, and carbon is in group 4a of the periodic table.
00:27
So the group number corresponds to the number of valence electrons.
00:30
Each carbon has four.
00:32
There are then five hydrogen.
00:36
Hydrogens in group 1a, so each hydrogen has one.
00:40
There's one nitrogen, nitrogen's in group 5a, so that one nitrogen has five valence electrons, and the oxygen in group 6a has 6.
00:52
All right, so three times four is 12, plus 5, plus 5, plus 6, gives us 28.
01:05
28 valence electrons to work with.
01:09
In other words, those are the dots.
01:12
We're going to have 28 dots in our finished lewis structure.
01:18
The next thing we need for our lewis structure is a skeleton structure.
01:24
So let's take the name here.
01:26
The name is going to help us a lot.
01:28
We see propane.
01:29
So propane tells us we have three carbons that have to be single bonded because that's a propane.
01:38
So a single bond means one pair of electrons.
01:40
Holding them together.
01:43
We see that we have two hydroxy...