Bond Angle answers

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

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Gabriela Carrillo 1B
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

Bond Angle answers

Postby Gabriela Carrillo 1B » Thu Nov 16, 2017 10:47 pm

When tested and asked for the bond angle, are we expected to be very specific? For example, if the shape is trigonal pyramidal and we say the bond angle is 109.5 degrees instead of slightly less than 109.5 degrees, will we loose points??

skalvakota2H
Posts: 52
Joined: Sat Jul 22, 2017 3:01 am

Re: Bond Angle answers

Postby skalvakota2H » Thu Nov 16, 2017 10:52 pm

I believe we will not need to know specific bond angles when there are lone pairs. The interaction between a lone pair and bond pair, which is a repulsion, changes the bond angle to a lower value, but we cannot be certain to what degree this change will be. As a result, all we can state is that the bond angle is less than the ideal bond angle from a similar molecular shape.

Gobinder Pandher 3J
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

Re: Bond Angle answers

Postby Gobinder Pandher 3J » Sun Nov 19, 2017 1:31 pm

I believe we will lose points if we do not specify that the bond angle is less than a certain degree. From the practice problems, all answers stated less than or an exact angle.


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