Chem 120 notes Week 15
Chem 120 notes Week 15 CHEM 120
Popular in College Chemistry I
Popular in Chemistry
This 0 page Class Notes was uploaded by Leslie Pike on Friday December 4, 2015. The Class Notes belongs to CHEM 120 at Western Kentucky University taught by Dr. Darwin Dahl in Summer 2015. Since its upload, it has received 11 views. For similar materials see College Chemistry I in Chemistry at Western Kentucky University.
Reviews for Chem 120 notes Week 15
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 12/04/15
Chem 120 notes Week 15 The AXE formula is important for determining molecular geometry electronic geometry and hybridization states There are no quottricksquot just simple memorization A is the central atom X is any atoms that may be attached to the central atom E is one pairs of electrons For example Ammonia NH3 Nitrogen is the A There are three attached hydrogens and one lone pair Therefore ammonia is AX3E1 Electronic geometry concerns itself with the total number of things attached to an atom whether they be lone pairs or atoms it does not matter which For molecular geometry it makes a difference whether the things attached to the central atom are lone pairs or atoms Dr Dahl has provided us with a nice chart to study for which AXE formula corresponds to which shape I am not going to insert it here because you have it stapled to the back of your exam to look at Hybridization can be determined from the AXE formula No gimmicks just memorization Anything with a tetrahedral electronic geometry has a sp3 hybridization Anything with a trigona planar electronic geometry has a sp2 hybridization Anything with a linear electronic geometry has a sp hybridization Trigonal bipyramidal has sp3d hybridization and octahedral has sp3d2 hybridization A single bonds are sigma bonds Secondorder bonds consist of a sigma bond and a pi bond or a sigma bond and two pi bonds for a third order bond