Welcome to Chem 109 A. Chapter 1 E-mail: [email protected] Web-site: http://clas.sa.ucsb.edu/staff/terri/. Ch. 1. 1. Label the polarities of the bonds for the following molecules. A. Methanol – CH 3 OH B. Urea – CO(NH 2 ) 2. Ch. 1.
4. For each of the following; draw the Lewis structure, assign formal charges, determine the hybridization of the central atom/s, determine the bond angles, describe the bonds (sigma vs pi and which orbitals are involved), and draw a 3D orbital structure
7. In terms of dipole moments explain why BF3 has a molecular dipole moment of zero.