Bond Angles for Different Molecules - Can Someone Help Me Understand Them?

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The discussion focuses on bond angles for various molecules, with many participants suggesting that angles like 109.5 degrees are common for tetrahedral structures, while 180 degrees is typical for linear molecules. Specific examples include CF4, NH3, SO4^2-, and NH4+ all having bond angles of 109.5 degrees, while H2S and HCl exhibit 180-degree angles. Participants emphasize the importance of understanding molecular structure and electron configuration to accurately determine bond angles. There is a call for clarification on the original question and a request for the methodology used to derive the angles. Overall, the conversation highlights the need for a solid grasp of molecular geometry to understand bond angles correctly.
hotsexyveronica
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CF4 is it 109.5 degrees for the angle
NH3 109.5 degrees for this angle
SO4^2- 109.5 for this angle
NH4+ 109.5 degrees for this angle
H2S 180 degrees for this angle
PO4^3- 109.5 degrees for this angle
HCl 180 degrees for this angle
NF3 190.5
SiH4 190.5
BF3 190.5
C2H6 190.5
C2H4 190.5
CH2O 190.5
I don't think I am doing these right can someone show me please
 
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Well do you understand the molecular structure or the electron configuration b/c that will help you understand the angles. Also the angle represents the the lowest electron repulsion. You could basically look this up in your textbook...
 
hotsexyveronica said:
CF4 is it 109.5 degrees for the angle
NH3 109.5 degrees for this angle
SO4^2- 109.5 for this angle
NH4+ 109.5 degrees for this angle
H2S 180 degrees for this angle
PO4^3- 109.5 degrees for this angle
HCl 180 degrees for this angle
NF3 190.5
SiH4 190.5
BF3 190.5
C2H6 190.5
C2H4 190.5
CH2O 190.5
I don't think I am doing these right can someone show me please
Please write down the original question EXACTLY as it was given to you. We have no idea what angles you are referring to. Also, show us how you arrive at some of those angles, so we can help/correct you.

Also, HCl has only 2 atoms - there are no bond angles to speak of.
 

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