**OFFICIAL** AP Chemistry 2013 Thread

<p>Yeah some of my friends didnt have a graph either, which kinda screws the whole test up. Either they lose the points for not doing the graph or they had an extra ~4-5 minutes on the test which could also mean 3-5 points as well.</p>

<p>@jonhs123:
I made some more ■■■■■■■■ mistakes, like for the delta H calculation one, I mixed up some products and reactants…and for the delta G problem, I forgot to convert it to kJ/mol…</p>

<p>At least I’m not going insane, but it would be interesting to see what happens, perhaps everyone will get the points or not get the points, ie throw out the questions, and then curve it from there. I wouldn’t mind if I had to do the whole test again as it would only be easier</p>

<p>@tbradsworth Everyone makes mistakes like that, but when predicting your score, I take off an extra 2-3 points from each problem just in case.</p>

<p>ugh i hope its a generous curve, my worst case scenario is about 96-97 zzz right under a 5… Best case scenario ~110. When we get our scores, all we know is the final score correct? No MC or FRQ scoring?</p>

<p>Yes, you may find out the subscore, between 2-4 if you count part A’s and B’s or not.</p>

<p>Sorry could you elaborate? I don’t quite understand what you’re saying. We CAN find out our scores from each section?</p>

<p>You’ll never know your composite score, ie 110 or 103, but you may find out you final score for multiple choice (1,2,3,4,5) or FR (1,2,3,4,5), but you may also find out a number (again just 1-5 for FR A and another for FR B.</p>

<p>Oh ok, So for example I can get a total score of a 5. And then find out I got a 5 on the MC and 3 on FR A and 4 on FR B?</p>

<p>Chem: 2002 - 110, 2008 - 100</p>

<p>Those are the lowest composite scores for a 5 (based on the new May 2011 grading policy). It dropped 10 points, which means there may be a chance that the composite score this year will be less than 100, since this year’s exam appears to have been really difficult.</p>

<p>From question 2 of the MC, what was amphoteric? I put SO2 because sulfur is amphoteric in sulfuric acid, but I was annoyed by that one… No need to stress about that graph, but I honestly think they misprinted the question. Part d of that problem was on the bottom of the left page and the lines started on the right side at the top. There honestly was no graph.</p>

<p>We shouldn’t discuss the MC questions.</p>

<p>But since you asked—aluminum oxide (Al2O3) was the answer. I am certain about this.</p>

<p>What letter was Al2O3? And any predictions for the curve for a 5?</p>

<p>I think it was D. I dont really think in terms of letters…I just remember the answer.</p>

<p>AY MEGHAMIND</p>

<p>I think that there’s an allowance of +/- 1 or 2 sigfigs for each answer. At least that’s what my teacher told me</p>

<p>Every single person here has a different explanation of significant figures. Lets all go back to our information sources and check our information. I think you may be referring to ± 1 or 2 in the last sig fig place. For example. If there is 2 sig figs and you get 1.12 you round to 1.10 and perhaps 1.20 is acceptable as well, perhaps this is what he’s saying, don’t take my work for it. If someone can find out about the sig figs from a trusted source, then write. We have enough conflicting information about it</p>

<p>No I mean significant figures, not decimal point approximations</p>

<p>Here’s a quote from this website: [AP</a> Central - Chemistry Course Perspective](<a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>AP Chemistry Classroom Resources – AP Central | College Board)</p>

<p>"At the AP Reading, I deduct a maximum of one point once per question for a mathematical error and a maximum of one point once per question when the final answer contains a number of significant figures more than one different from the appropriate number.</p>

<p>Then if you refer back to killerskullz point, way back then this is REALLY lenient with SF. That’s good but its hard to avoid not missing that one point. So when I projected my score on appass I just subtracted 1 from a question. That’s why my projections are so low for FR. Expect the unexpected</p>

<p>Guys, I just realized I forgot to do the last FRQ question (number 6). How much am I screwed? :(</p>

<p>Assuming you succeed in the other 5, you can still get a 5.</p>