<p>Well, this is a considerably difficult exam . . as shown by the "curve" (only 60% correct needed to get a 5). </p>
<p>My chemistry class at school is definently not at its best, as only a few people have taken the test in the entire history of the school and ONE person to pass. so I bought Barron's and started reviewing, looks alright so far, so I think I'll do a decent job as long as I keep studying. Haven't taken any of the practice tests yet though. </p>
<p>so how are you all preparing . . doing the FR's on collegeboard? Are you nervous, or ready to take it to town . . ? </p>
<p>I'm kinda worried about the labs since we didn't perform any of them in class, can any veteran ap chem test taker enlighten us about the lab coverage on the test? There are 22 that are supposed to be covered during the year, I have a list of them from the summer chem program I did, but I only did a few and it was long ago.</p>
<p>This test is scaring me more than my other AP tests because of all the facts and methods you have to memorize, and the seemingly random info about chemicals all need to be known.</p>
<p>I remember last year when the ap chem test takers did a "game" where a poster asks a chemistry related question, and the next person answers and provides a new question. Anyone want to do that? It really helps prepare you . . i did it last year with apush and some of the info I learned from that thread came back to me during the test. . </p>
<p>well these are just my thoughts, if anyone else is taking the 2006 AP Chem test this year, feel free to say whatever :)</p>
<p>^ Very scared. I've had a horrible chemistry experience-- both Honors Chem & AP Chem teachers left either halfway through the year or didn't come back to school. So I've been learning through longterm subs. All the stuff we had to skip over in order to catch up with other classes is starting to come back to haunt me.</p>
<p>Hey sarorah, maybe it's my turn to be able to help you :) I took the chem test last year and got a 5. There's always 1 question on a lab, but most of the time you can solve the problem even if you didn't do the lab. (My crazy AP chem teacher did all of the labs AFTER the AP test) </p>
<p>Here's some of the things that I did which I thought were very useful</p>
<p>Do all of the FRQ's on collegeboard, or if you don't have time, at least read the questions and the answers to them</p>
<p>Do the two multiple choice tests in the Princeton Review book</p>
<p>Read the section about equation writing in the PR book, they have good generalizations that can help you solve the problems faster</p>
<p>Memorize solubility rules</p>
<p>And of course, keep up with the assignments that your teacher gives you, and keep up with the reading. If you don't understand the reading, or don't have time for it, here's a good set of notes:</p>
<p><a href="http://www.sciencegeek.net/APchemistry/index.shtml%5B/url%5D">http://www.sciencegeek.net/APchemistry/index.shtml</a></p>
<p>Hey Phoenix, how difficult are the equations on the actual AP exam? I looked at the equation sections from the two practice tests in the pr book, they look too easy to be true. And when you say one question on lab, do you mean a multiple choice question? or a free response with like gazillion sub q's?
thanks</p>
<p>There's 1 FRQ question for labs, and there might be 2-3 MC questions for labs. Generally the equations are pretty easy on the actual test, but it's still pretty difficult to get a PERFECT score on that section (You can still get a 5 without a perfect score on this section). I forgot how they compare to PR's practice ones since I no longer have that book. I think one thing that is noteworthy is that there is always a combustion reaction among the choices for the equations section - just know that the products of a combustion reaction are ALWAYS CO2 and H2O, and there is always an O2 molecule on the reactions side</p>
<p>i m really scared for the exam too my teacher hasnt taught us s***</p>
<p>i am scared too. i am taking a distance course for it and i feel like i dont remember anything b.c we havent actually had to study for any tests (since its done on the computer at home). only 2 out of i think 7 kids in the ap chem class at our school are planning on taking it...they havent learned much either....there should really be better classes for this.</p>
<p>this prep is going to suck. but thanks, phoenix for the advice...</p>
<p>The average on the equations section for the test is only a three I believe. This part is NOT HARD at all. I am very sure I got a 15 on this part. If you remember the general cases of how things work (Combustion, what happens when something is reduced/oxidized in an acidic/basic solution, etc...) then this section is very easy and will be a key factor in getting that 4 or 5. </p>
<p>One of the more important things that people dont emphasize about this test is on the multiple choice, you have to do a lot of math without a calculator. Make sure your math skills are up to par to do math quickly and correctly.</p>
<p>I got a 5, this is the advice I can give you.</p>
<p>PS. D = PM/RT, helped me out so many times.</p>
<p>I'm worried too. A month before the exam, my teacher left for a 2 week trip and i can honestly say that she is the worst teacher I have ever had besides the sub she gave us. I feel like I'll do ok if I review basic concepts though. 60% for a 5? that sounds too good to be true. I have a few questions: About how many points are on the test adding up every possible point, or at least how many are on the free response? Also, If I get about 50 mc right, how many points do I have to get on the free response for a 5? 4? 3?</p>
<p>Yeah, we do need better ap chemistry classes. </p>
<p>jaadoo- 60% really is right, lets see</p>
<p>(straight from the barrons book)</p>
<p>In 1989, you had to get a total score of 93-160 to get a 5
The minimum would be 93/160=.58, or 58%
In 1994, the range was 99-160
99/160=61.8% . . so roughly 60% needed to get a 5. </p>
<p>If you get 50 MC right, it depends on how many others you get wrong. 50 mc with an omit of 25 (cuz there are 75 MC questions for a 90 min period) . . well that would be 50 raw points, less if you tried to answer more and get some wrong. So you'd need around 45-50 more points on the FR to get a 5 . . </p>
<p>Here are some more ranges, you can do the math
for a 4:
1989: 71-92
1994: 76-98</p>
<p>for a 3:
1989: 46-70
1994: 49-75</p>
<p>I think if you have at least an idea of what you're doing, you can easily get a 3, so I don't know why so many people do so poorly . . it's when you're shooting for a 5 where you need to carefully plan what to answer, and how to use your time to get your maximum deserved score. basically be much more efficient by answering as many mc's correctly as you can.</p>
<p>Last year, I checked out the resources people posted for the 2005 ap chem test, and I have some saved in my fav's list, so I can post some of those to help us all out. . . </p>
<p>thanks for the tips prvious ap chem test takers :)
if anyone has any more tips, dont hesitate to help us!</p>
<p>Interesting; my teacher said I earned a 3 when I got 67% of the MC questions right. Of course, he has been teaching since the mid 1960s and has not updated any of his exams or grading scales, so that scale that he used was probably made in the early 1970s.</p>
<p>well its better to think u got a 3 and then really get a 5 then think ur gonna get a 5 and end up with a 2 or a 3!!!!</p>
<p>Alright I'll start, participate guys, this is your chance to ask ANY question you don't know the answer to . . this really helps, i'm telling you from first-hand experience .. it might even guarantee a 5 with some extra studying!</p>
<p>to play, answer the previous question if you can and give a new question.
okay 1st question:
what is a colloid?</p>
<p>ahhh we did something about colloids a while ago? just taking a random guess is a it a type of element ? like halogen or watever</p>
<p>haha thats a good guess...but its a type of solution...like a suspension or something i think..</p>
<p>its a type of solution where something is suspended in it. not floating, not sinking, exactly inbetween-achieved when the density of the suspended molecules is the exact same as the density of the solution they are suspended in.</p>
<p>what is the electron configuration of NO3- ?</p>
<p>i'm not really sure but i think it's a very dispersed solution (solutes are very finely grinded particles)</p>
<p>Given solutions of X, Y, Z. you are told that these solutions are NaCO3, NaHCO3, and NaCl. any basic chemistry laboratory equipments may be used. write a procedure + explanation that would ID which one is which</p>
<p>Edit: sorry, i took too long posting and the above person posted before me.</p>
<p>alright stan.... let's work yours out.</p>
<p>btw, im assuming you mean Na2CO3.</p>
<p>by basic lab equipment, I hope you have a Ph tester.
test Ph of all 3 solutions. find the one that is closest to 7. that's NaCl.</p>
<p>the CO3 in the Na2CO3 would react w/ the water to form an equilibrium reaction.</p>
<p>CO3(-2) + H2O <--> HCO3- + OH-</p>
<p>the solution will be slightly basic.</p>
<p>HCO3(from NaHCO3) + H2O <--> CO3-2 + H+</p>
<p>solution will be slightly acidic.</p>
<p>test Ph of other 2 solutions, the one above 7 is Na2CO3
the one below 7 is NaHCO3.</p>
<p>nice question stan, a little ambiugous on the 'equipment' we're allowed to use.</p>
<p>yeah i meant Na2Co3</p>
<p>um, regarding your question. i don't really know the answer - all what i know is that it has a sp^2 hybrid. help?</p>