00:01
To determine whether or not the species is polar or non -polar, we need to draw the lewis structure.
00:07
Before drawing the lewis structure, we need to count the number of valence electrons.
00:12
Carbon has four.
00:14
Chlorine has seven, and there are four of them.
00:17
This gives us a total of 32 valence electrons.
00:21
So if we put carbon in the middle, and we put the four chlorines around it, and we give each chlorine an octet with three lone pairs, we will have used up all 32 of the valence electrons.
00:35
This gives us a tetrahedral structure.
00:38
If we have a tetrahedral structure with all of the bonds being equal, they're all ccl bonds, then although the bonds are polar, the molecule itself is non -polar.
00:54
So this one's non -polar.
00:56
The next one is o -c -s...