Anything will help but I need at least 15 things that the state department does as its role in the executive branch and more on what there responsibility is. I can not find any of this on the web. Thanks for any help.

Did you look at http://www.state.gov/ , the website for the US Dept of State? If you scroll down to the bottom of the first page there is a column on the right that has their mission statement. I didn’t read it but it will probably provide the info you are looking for or at least be a starting point.