Here are the recommended problems from Burdge for Chapter 19: 2, 10, 14, 22, 30, 32, 34, 48, 54, 82, 84, 92, 100 -- 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