Here are some great websites to use as you begin the research on your project:

100 Distinguished European Chemists (profiles of 100 Distinguished European Chemists from the Chemical Revolution to the 21st Century)

Academy of Achievement - Science and Exploration (these scientists are not all chemists, but you will find some)

Eric Weisstein's World of Biography Site (this section is a collection of 95 chemist biographies from scienceworld.wolfram.com)

The Faces of Science: African-Americans in the Sciences (this site provides an index of all types of scientists, there is a long list of chemists included)

Inventor of the Week: Lemelson-MIT Program (take a close look at the Medicine and Healthcare & Consumer Products links)

Journal of Chemical Engineering (this list contains links of famous women and minority chemists)

Luminaries of the Chemical Sciences (this site provides links to biographies of "intellectual giants" in the area of chemistry)

National Academy of Sciences - Biographical Memoirs Search (use this search page to find chemists that are members of the National Academy of Sciences)

The Nobel Prize in Chemistry (check out all the previous - and this year's - nobel prize winners in chemistry)

Women in Science and Engineering (this list of profiles are not all chemists - but there are some)

Working Chemists with Disabilities (this site shares profiles of chemists who have overcome great obstacles in their life - definitely work a look!)