Bond Angles
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Bond Angles
Are there any other factors used to determine bond angles other than geometrical shape and lone pairs? I'm having a hard time gettinh the sapling questions right.
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Re: Bond Angles
Those are the only factors I consider and I did OK on the sapling problems. I would make sure you had all the shape angles memorized as they are somewhat counterintuitive for me.
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Re: Bond Angles
The VSEPR theory that we use the determine the geometry of molecules (which includes the bond angles) is solely based on the number and position of atoms bonded to the central atom and the position of lone pairs on the central atom. So while you can create a rough estimate of the bond angles (such as assuming that an angle is greater or less than 109.5) anything more precise would need to based on experimental data, and cannot be calculated with VSEPR theory alone.
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Re: Bond Angles
The shape of molecules and lone pairs determines the bond angles. The best way to get familiar with them is just by practicing I think since there isn't any way to calculate the bond angles.
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Re: Bond Angles
I would recommend that you see molecules in multiple planes of 360, there fore you just divide the 360 degrees by the number of bonds to get the average bond angle in between atoms in that plane, and if there are lone pairs in that plane it would be safe the assume that the angle would be less.
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