I will be doing gen chem this summer.
The professor has put up a worksheet that has all the math you need to know. So you may want to look at that. THe only problem area would probably be logarithms, but thats only after the 3rd week of the course, so oyu can ask someone to tutor you. Or use YouTube videos, that's what I'm doing.
Also, are you in the facebook group for SSP Students?