<p>Isn’t 2-hydroxethane still just ethanol, there are only two carbons… I’m really upset about that PE diagram, never even saw it. Dropped my expectations of a 4 to a 3. Also said ZnCl2 instead of dissociating and Ca+ not +2… ***</p>
<p>I got .003 moles… I don’t even know anymore…</p>
<p>Remember that if you got the correct answer for part b) based on an incorrect answer for part a), you’ll still get credit for b). College Board is merciful that way.</p>
<p>So foreverFish, for number 3, where it asks you to calculate the q, if i got that wrong, but i showed the procedure to get delta h kj/mol correctly in the following question, would i get the point. Stupid question, I assume yes.</p>
<p>Did everyone not see e and f, now that I look at it, I can’t believe it, the lines for the answer started after d, am I blind??? I sometimes misread questions, but I don’t skip pages.
@TheBombingRange I also got 0.003 moles or something like that, I was in a hurry to do that, and didn’t have time to think it through,
@ForeverFish I hear different opinions about that, sometimes its stated (after the fact obviously) and sometimes if its little they take off both points. If you’re correct in all cases, that’s a bunch more points for me.</p>
<p>guys what if you do a math mistake…any points at all?</p>
<p>Same thing, one point off for final answer, but depends if you set it up right, and how big a problem. There’s a good chance that everyone missed more points than usual on math mistakes, because the questions were longer. For example, in acid/base, a,b,c,d are just calculating pH, before it asks you to do a titration, but it got right into calculating moles of stuff. Did anyone else feel the questions were longer because of this reason?</p>
<p>I really wished I had more time, or wouldn’t have made careless mistakes (I forgot to tak the square root when calculating the concentration of the first problem, and I was rushing, so I missed 5f cause I thought I had finished the problem after drawing the curve). <em>facepalm</em></p>
<p>@jonhs Same here! I swear the lines started right after, I honestly don’t think I could have skipped it. It was on a separate page for e and f, too. Maybe it’s a misprint for a certain run of the tests??? Let’s hope it’s the CBs mistake, not ours. Oh, and how the hell do you get experimental delta H!!! I got the predicted with Hess’s law, but couldn’t figure out how to get the experimental one…</p>
<p>@TheBombingRange Something was fishy with this test anyway, two answers for the volume one, invisible questions, unexpected topics. But I knew the multiple choice so well that I calculated I could have done awful on ALL the FR and still get a 5. With the delta H problem, I did everything right except I used 0.50 as the mass, not 100.5, so my answers were way off, except everything else on the problem was right. And to calculate, you just make a proportion with q:moles=deltaH:1 mol
Do you think I’ll get lots of partial credit, because everything is set up right.</p>
<p>I think? I did better than I initially thought… By the way, I’m not sure they base the grading on how the students did. That’s like punishing everyone for either teachers doing a great job or students taking initiative on studying really well, or that’s how I would view it.</p>
<p>[2012</a> AP Exam Score Distributions](<a href=“2012 AP Exam Score Distributions”>2012 AP Exam Score Distributions)</p>
<p>If they really did look at them after, I’m not sure they’d let 50% of Calc BC testers get 5’s. Similarly, only 8% of people got 5’s on Environmental Science. I believe they give the test to college kids?</p>
<p>I need to stop stressing, nothing I can do now</p>
<p>^If this made any sense at all</p>
<p>So anyone wanna discuss sigfig usage? Because I was told that sigfigs were a must and the answers I am seeing do not necessarily utilize them or utilize them very loosely lol *** probably gonna get docked</p>
<p>@weiscool</p>
<p>Kids who take calc BC are already very skilled in calculus ab and the subject area. Many smart kids take environmental, but mainly more non-smart. In calc BC, if I got a 105 and you got a 110 and someone else got 115, they’re not giving me a 3, you a 4, and the other guy a 5… There’s an expected range of values, which they shift somewhat as a curve after the grading.</p>
<p>So yes, the curve is after the grading. But it won’t shift 20 points. Most it can shift is 10 points really (and that’s usually in the tougher direction).</p>
<p>For the guy about sig figs… They usually chose one question to use sig figs on. If you messed up with sig figs there, it’s -1 on the whole question.</p>
<p>For sig figs, is it one part per question on the free response, or one part of one question on the entire free response?</p>
<p>My exam was not too hard, though I missed #2 on the predicting reactions. I think i got a 5.</p>
<p>Wow this thread jump 200 posts. You people are really desperate to know the answers</p>
<p>For 5d, ((d) Identify an intermediate in the reaction mechanism above. ), I misread “an” as “all”. Would listing both of them (Cl- and C2H5+) cause me to lose a point?</p>
<p>@tbradsworth</p>
<p>You should be fine, I wrote both too.</p>
<p>I still can’t get over the 5e and 5f, one does not just miss a graph, its a graph for goodness sake, it’s big, and multiple people do not miss a graph, MULTIPLE PEOPLE missing a GRAPH. Not a word, like one, all or not, but a giant plot.</p>