Here are the problems I recommend you do from Chapter 17 of Burdge: 6, 16, 18, 20, 28, 30, 32, 50, 58, 62, 66, 68, 70, 72, 74, 80, 94, 106, 110, 116, 120, 126, -- Andrew J. Pounds, Ph.D. (pounds at theochem.mercer.edu) Associate Professor of Chemistry and Computer Science Mercer University, Macon, GA 31207 (478) 301-5627