text: errors in kaplan 2006 ap chem book? anybody else that has bought the 2006 ap chem book by kaplan, have you noticed that there are lots of errors? i just did the diagnostic test, and realized that many of the solutions didn't match up with the answers. in the answers for the free response,  they first say the answer is 73 atm, then 80 atm. 1.55l then 1.7l. they don't even use significant digits either...  has anyone else had problems like this? can anyone suggest a better ap book for chem? thanks. i use the princeton review book, and it's pretty good, i think.   the best review, though, is to go through your notes, go through your textbook, and talk to your teacher about practice materials for the ap test.  i would recommend checking out what other folks are saying about all of the ap chem prep books by checking out amazon.com.