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QUESTION

What is the vsepr model for CHCl3?

##CHCl_3## would have an ##AX_4## designation. This would make its shape tetrahedral. It's just like ##CH_4## but with Cl atoms replacing three of the hydrogens.

The molecule has a central carbon. There would be a single covalent bond to three chlorine atoms and a single bond to the one hydrogen atom.

VESPR stands for valence shell electron pair repulsion. This theory basically says that and non-bonding electron pairs of the central atom in a molecule will repel (push away from) each other in three dimensional space and this gives the molecules their shape.

We can use the following notations when examining a Lewis structure of a molecule. A = central atom X = peripheral atoms E = non-bonding electron pairs of the central atom

##AX_2## = linear molecule (example ##CO_2##) ##AX_3## = trigonal planar (example ##AlH_3##) ##AX_3E## = trigonal pyrimidal (ex. ##NH_3##) ##AX_2E_2## = bent (ex. ##H_2O##) ##AX_4## = tetrahedral molecule (ex ##CH_4##)

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