You just have to ask, but make sure when you do, you have a good agrument for why you should make what you want to make. Who knows, your boss may agree and give you 10.00 without much debate, or he may try to haggle with you like my boss did. In any case, be ready to present your side, and possibly walk if it comes to that.
I was making a measly 11.50 at my job, and I just went in and asked my boss for a raise. Well, he turned it into an "employee evaluation" with this self evaluation worksheet I had to fill out (if you knew how small this company is, you would know how ridiculous that is). Then after he did the evaluation, he offered me $14.00 an hour with "the opportunity to go to $15.00." I told him I wanted $16.00, period. I then explained to him why I felt I deserved that money, and since he's not going to get anyone else, we debated back and forth for awhile, but he eventually decided to give me the $16.00. Too bad some things came up during that meeting that really pissed me off. Even though I'm happy with the money now, I'm even less happy with my job and the environment.