<p>Ummm I believe you are supposed to use the molarity equation: Molarity=moles/volume.
They give you the Molarity and the moles so you can solve for the volume. </p>
<p>I do not believe the moles of oxalic acid applies to H+. There is only 1 moles of oxalic acid and 2 moles of H+.</p>
<p>Oh ok. </p>
<p>Also, how do I find the Ka1 given Ka2? What is the relationship among Ka1, Ka2, and Ka?</p>
<p>If you are given a reaction with multiple steps the rule is that ka= ka1 times ka2
so all you have to do is multiply the equilibrium constants of the two reactions to get ka.</p>
<p>How important are these concepts?
Thermochem
Atomic structure/configurations
Bonding and molecular structure- Hybrid Orbitals and fundamental concepts
IMF’s
Kinetics
Equilibrium
Solubility
Acid/Base
Entropy/Free Energy
Redox
Thanks for your help!</p>
<p>All those topics will appear on the exam.</p>
<p>All those topics are topics I haven’t even looked at yet…</p>
<p>How is that even possible?</p>
<p>It’s possible because I’m not taking AP chem as a course D;
and because I procrastinated on self-studying.
well actually I lied; I studied IMF and… yeah that’s it.</p>
<p>You will get a 1 or a 2 if you do not know those topics.</p>
<p>Too re-ask another persons question… Is the pr practice tests on par with real aps?</p>
<p>Which review book has the most accurate practice tests? Cliff’s seems too hard for me, while PR seems more doable. I haven’t looked at Barron’s but I assume its tests are not easy.</p>
<p>ryanxing, Princeton Review is the most accurate, I think–I only used that and my textbook and I got a 5 on the “practice” AP exam that my teacher made us come to school last Saturday morning to do…and it was the 2008 AP Exam.</p>
<p>I do have an old version Barron’s that belonged to my cousin, but it seems like it has a lot of unnecessary and extra information that I really don’t see turning up on the exam.</p>
<p>I have Barron’s and the practice tests seem to be relatively simple…</p>
<p>Mine’s really old–it’s from 2003, I think–so Barron’s has probably improved it since then.</p>
<p>I am so going to fail the AP exam. I don’t remember anything. The entire class has felt like everyone was talking in a foreign language and I had to translate before actually learning any chemistry. It doesn’t help that my class will finish electrochemistry by april 28th. Should have self studied since my teacher fails at life, but with six other APs the time does not exist.</p>
<p>I’ve been studying with the Princeton Review book and have some several end-of-chapter questions. I’d used the prep book to prepare for my class exams, by which I found the PR review was not thorough enough. </p>
<p>Is the Princeton Review prep book really sufficient enough, as majority rules, for the AP Chemistry exam?</p>
<p>I recently got the AP Barron’s Chemistry flashcards as well. I’ve glazed over some of them and recognize a slew of concepts we studied in class (we use Raymond Chang’s 7th ed Chemistry) such as instantaneous dipole, formal charges, etc. Should I ignore reviewing these cards since they were not outlined in the PR book? </p>
<p>I haven’t enough time and have got 4 other upcoming APs, many of which are self-study. Thanks! :)</p>
<p>Here are some things that I’ve noticed from seeing released free-response sections (I don’t know if this stuff has been posted before):</p>
<p>Part A:
The first problem is always an equilibrium problem. Make sure you know all types of equilibria, including acid-base equilibrium, equilibrium of gases, and the solubility product constant.
If the format stays the same this year as the last couple years, the second question will be an experiment.
Reaction rate; electrochemistry; and enthaply, entropy, and free energy are common subjects in part A.</p>
<p>Part B:
You need to know how to write and balance reactions (if you cannot do this by now, you are doomed).
Make sure you know electron configuration, lewis dot structures, oxidation numbers, and bond strengths.</p>
<p>Hope this helps. Just remember this certainly doesn’t cover everything.</p>
<p>What do you guys know about how significant figures are graded in free response questions?
LIke i know it says your figures have to be significant but if you’re off a decimal place are you docked the whole point? (e.g. 7.89 instead of 7.9)</p>
<p>I used the Barron’s book, and it was pretty tough. On their practice test I got a four, but ended up making a 5 on the exam.</p>
<p>Also, on significant figures, I THINK they’ll let you slide if you’re just one significant figure off.</p>
<p>If you are one off it’s okay</p>