acid bases are the smaller portion of orgo 1....
in my first exam last week, out of 50 questions, only 2 were acid / bases, so I wouldn't worry about it too much
one more thing, what helps me with orgo is to read the chapter ahead of time (before the professor starts explaining it), that will help you write better notes in class..... MAKE SURE to re-write your notes after lecture. Most people tell you to re-write your notes directly after class, I do it after I get home (works better for me).
Another thing, make sure you do alot of problems, and when I say alot of problems, I mean to do EVERY single problem at the end of each chapter (make sure you have the solutions guide with you), it will strengthen your problem solving skills and make you work the problems out faster during the exam.