Bond Angles

(Polar molecules, Non-polar molecules, etc.)

Jasmin Argueta 1K
Posts: 69
Joined: Fri Sep 28, 2018 12:16 am

Bond Angles

Could someone clear up the concept on bond angles? Question 2E7 in the 7th edition is asking how many bond angels there are in the molecule SOCl2, how would you go about figuring this out?

Sophia_Kiessling_2L
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

Re: Bond Angles

There are as many bond angles are there are bonds between S, O, and Cl. Drawing a lewis diagram will help visualize it and help you count. Then depending on the shape of the molecule you can determine the actual bond angle degree.

Ryan Troutman 4L
Posts: 68
Joined: Fri Sep 28, 2018 12:22 am

Re: Bond Angles

The bond angles is directly correlated to the atom and its VSEPR formula. If we use the question from 2E7, the molecule SOCl2 has a VSEPR formula of AX3E, which is trigonal pyramidal. The bond angle is less than 109.5 degrees, and technically only has one bond angle value since they're all the same. If we take AX5, trigonal bipyramidal has 2 different bond angle values, 90 degrees and 120 degrees (and technically 180 if you count the angle from the top and bottom atoms). In summation, you draw the VSEPR shape and see the different bond angle values, which will get you the answer :)

Yiting_Gong_4L
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: Bond Angles

Bond angles are determined by finding out the geometry of the molecule first. (Linear, Tetrahedral, Trigonal Pyramidal etc.) There are helpful charts online!