CHEM 1040 Lecture Notes - Lecture 10: Boron, Sulfur Dioxide, Joule

• School: University of Guelph
• Department: Chemistry
• Course: CHEM 1040
• Professor: Joe Prokipcak

Document Summary

Chem 1040- lecture 10- hybridization & structure review and intro to stoichiometry. Most likely: what is the formal charge on chlorine in clo3, for the following atoms, draw the structure. Then list the number of electron pairs, the hybridization, the framework and molecular shape, and whether there is a net dipole: bf3, pcl3, icl3. Solutions: cs2 does not have a dipole because it is completely symmetrical. Sco because oxygen is more electronegative than sulfur. The hybridization is sp3, because the framework geometry is tetrahedral. Since there are lone pairs on the nitrogens, the bond angles are <109. 5 degrees: in water, there are 2 bonded electron pairs, 2 lone electron pairs. The shape is tetrahedral, so the hybridization is sp3. The molecular shape is bent, since there are lone pairs on the oxygen, so the bond angles are less than 109 degrees. In sulfur dioxide, there are 2 bonded pairs and one lone pair.