What is the basic premise behind VSEPR?
What is the difference between electron group geometry and molecular geometry?
Identify the electron group geometry and molecular geometry of each molecule.
a) H2S
b) POCl3
4. Identify the electron group geometry and the molecular geometry of each molecule.
a) CS2
b) H2S
5. Identify the electron group geometry and the molecular geometry of each molecule.
a) HCN
b) CCl4
6. Identify the electron group geometry and the molecular geometry of each molecule.
a) BI3
b) PH3
7. What is the geometry of each species?
a) CN−
b) PO43−
8. What is the geometry of each species?
a) PO33−
b) NO3−
9. What is the geometry of each species?
a) COF2
b) C2Cl2 (both C atoms are central atoms and are bonded to each other)
10. What is the geometry of each species?
a) CO32−
b) N2H4 (both N atoms are central atoms and are bonded to each other)
11. Determine the net molecular dipole of each species:
a) BF3
b) NH3
Answers
1. Electron pairs repel each other.
3.
a) electron group geometry: tetrahedral; molecular geometry: bent
b) electron group geometry: tetrahedral; molecular geometry: tetrahedral
5.
a) electron group geometry: linear; molecular geometry: linear
b) electron group geometry: tetrahedral; molecular geometry: tetrahedral
7.
a) linear
b) tetrahedral
9.
a) trigonal planar
b) linear and linear about each central atom
11.
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