<p>Ok, so I've search around on the thread and online, and found ranges for a 5 between 93 and 107 out of 160.</p>
<p>Anyway, I have a few questions:
1) Multiple choice is 75 questions, yet the total is 160. Collegeboard says that MC and FR are both worth equal amounts, so will my score in the MC section be multiplied by some number? Or perhaps I have it all wrong?</p>
<p>2) Which book's practice tests have problems most similar to the difficulty of the chem AP test? I took barrons and got a 40%, but I got around 80% on Princeton Review. Any ideas? I'm trying one from Petersons/ARCO right now, and it appears to be as easy as Princeton's (easy as in not Barron-status hahah).</p>
<p>Thanks. And feel free to post your chemistry stresses too!</p>
<p>Took chem last year. Barron’s way harder. PR is good. Have never looked at ARCO. I personally only looked at the questions from the review books. Never sat down and took a test from them.
From looking at 1994 released exam, I think most people who got 5 got 50+ right out of 75 on MC</p>
<p>Go with Barrons. Barrons is so much better than anything else. It will make you sad when you take the practice test in it (it’s a lot harder than the real thing), but after that, when you actually take it and get your score back, you should be presently surprised.</p>
<p>i only use AP Achiever (for their practice q’s) and Barron’s (did EVERYTHING to this book - highlighted, ripped, did all the q’s, read it back & forth a few times) and got a 5. also, do all the practice fr q’s on the CB website and you shoudl be a good shape. make sure you UNDERSTAND the frq’s and if you get anything wrong, check with you teacher & clarify! it will only help you good luck, ap chem testers!</p>
<p>oh and please don’t fret too much if the frq turns out to be difficult. i thought the mcq was wicked easy last year (pretty confident i got everything but 2 questions right) but completley blew the frq … somehow still managed to pull a 5 though, much to my surprise</p>
<p>how about the total score? is it really out of 160? (would that mean multiple choice score would have to be multiplied by some constant?)</p>
<p>and how did you guys feel about the FR? in my opinion, MC seems way easier than FR in general, and that’s why I’m not confident in getting a 5, even if I get 50+ on the MC. (that would require about 50/80 on the FR)… :(</p>
<p>I’m not 100% sure, but I talked to a friend of mine who took the AP test a year ago, and he said PR is best in terms of how its formatted (its very similar to the AP test).</p>
<p>But I’m still not clear on the format of the test…
There’s 75 MC 90 minutes.
There’s 6FR, how many points each?
What would I multiply what by, to get my total score?</p>
<p>yeah… me too haha. our class hasn’t done a single lab, and we’re skipping nuclear and organic chemistry…</p>
<p>well… you guys wanna open it up to chemistry questions?
Might be good for us to study haha.</p>
<h2>and if anyone ever finds the answer to how the exam is scored, that’d be nice. (for example, I don’t know what to multiply my score in the 75MC, and im not sure how much each FR is worth ahah).</h2>
<p>maybe I’ll start:
the AP chem balanced equations portion:</p>
<p>I have no idea how to do the balanced equations portion of the FR. I know how to balance equations using stoichiometric coefficients, but not the particular type of “balanced equations” on the AP test.</p>
<p>For example: “a small piece of sodium is placed in distilled water”</p>
<p>my initial thinking:
Na + H2O –> NaOH + H+</p>
<p>but they have as the right answer:
2Na + 2H2O –> 2Na+ + 2OH- + H2</p>
<p>Why is my answer wrong? (I have the right species and my answer is balanced…)
Also, I have no idea when to combine certain species, or keep them separate as ions–do solubility rules account for this?</p>
<p>Yea, solubility rules account for equations. Your equation was wrong because NaOH is a strong base and strong bases dissociate 100%. </p>
<p>As for the grading of the test, it should work something like this:</p>
<p>[(MC correct) - (1/4 X Number wrong)] X 1.0667 = Weighted section I
FRQ1: (Points out of 9) x 1.7778
FRQ2: (Points out of 10) x 1.600
FRQ3: (Points out of 8) x 2.000
FRQ4: (Points out of 15) x 0.5334
FRQ5: (Points out of 8) x 1.500
FRQ6: (Points out of 8) x 1.500</p>
<p>Composite Score:
160 - 108: 5
107 - 86: 4
85 - 62: 3
61 - 43: 2
42 - 0: 1
(These values are based off a form my AP Chemistry teacher gave me)</p>
good luck, ap chem testers!</p>