<p>How do you all prepare for the lab questions (aka #5)?
Sometimes it seems like the question requires the student to have done the lab (finding molar mass from freezing point thing). However, sometimes it can be reasoned pretty easily knowing basic rules of chemistry (find the unknown substances using solubility rules).
Should we have done some of these in the lab? I only remember about ten labs all year and we did most of those theoretically. I had the freezing point thing on my ap chem final and our teacher never even showed us the formula
[change in]T=Km. I had to ask her about that after school. How should I prepare?</p>
<p>We've done like two labs because our teacher sucks! So don't worry, you are much better prepared than I am.</p>
<p>This is what I'm doing b/c we've done so few labs...I got the REA AP Chemistry book to supplement the PR book I have...it has all the labs...I read through them once...Now, I'm going to read through them again & try to memorize the gyst of each lab.</p>