<p>joeschmidt I put 10^-6 as well but im unsure</p>
<p>Does anyone know the answer to the one</p>
<p>that formed a gas
and the complex ion one</p>
<p>also, what were some other hard MC questions later?</p>
<p>^formed a gas</p>
<p>was the CaNO3 one, it forms hydrogen gas</p>
<p>the other gas question was H2C03 which goes to CO2 + H2O</p>
<p>Complex ion was NH4NO3</p>
<p>Did everyone get 1.00 for the density question? I only remember seeing 1.0 g/ml, so I put that.</p>
<p>ya i only remember seeing 1.0 g/ml (choice C i believe) so i put that…meaning i missed it because of a carless mistake.</p>
<p>that would really suck since the problem was really easy.</p>
<p>The one that had 40 mL 2So2 and 20 mL o2 had an answer of 40 ml 2so3 right? I kinda forogt about stoich with volumes</p>
<p>also did you guys get a lot of Cs in a row at the end?</p>
<p>If the SO3/O2 problem you posted has the right coefficients, then it is 40 ml 2 So3.</p>
<p>I don’t remember what letters I got at the end. If you remember the questions, I could tell you my answers.</p>
<p>I got a bunch of Cs towards the end, I remember that.</p>
<p>How many CEs do you guys remember putting?</p>
<p>Also, I got 40 mL too.</p>
<p>I had a CE for the Rutherford, a CE for the eudiometer, and a CE for the ideal gas/speed.</p>
<p>These are the questions I remember that we haven’t really gone over:</p>
<p>Sulfer balancing problem, I had 16 in front of the sulfur.
The other balancing problem was something like a 3:2:3
Last problem the mols of H2 gas and O2 gas were equal, so they exerted the same pressure.
The one with the change in temp from 27-47 degrees C, I got a change to 3.0 atm’s. </p>
<p>Don’t remember much else. I made alot of stupid mistakes on this test. Can anyone estimate the raw score the curve will generate for a 770+?</p>
<p>Edit: My third TTCE was for the ideal gas, comparing H2 and some heavier molecule. They both have the same kinetic energy at the same temp, but the H2 is faster due to its lower mass.</p>
<p>I got 16 for the sulfur as well.</p>
<p>I don’t remember the other balancing problems, though.</p>
<p>They did exert the same pressure.</p>
<p>I remember the question but I don’t remember what I got. I remember it being a pretty simple calculation, and I got a good number like what you got.</p>
<p>In the Collegeboard’s book, a raw score of 76/85 is the minimum for a 770. I estimate that the curve will be more generous, so it will probably be a 74/85.</p>
<p>I am so disappointed with myself for this test. Chemistry is my best subject and I finished the test with 15 minutes to spare, but I made so many stupid mistakes.</p>
<p>Well, you could always cancel and retake. I want to retake this one…</p>
<p>It’s my first subject test too. Test proctor didn’t let us have a watch for some reason. =[</p>
<p>yes i got 3 CEs as well and they were the exact same CEs the person who posted above got! (although many people are saying the one about the eudiometer i not TTCE)</p>
<p>I thought it was 3.2 atm.</p>
<p>It had something like 3.0/300=3.2/320</p>
<p>It started at 3.0 atm and then it said what is it at 320K (47C) atm.</p>
<p>I thinik you guys got it mixed up.</p>
<p>Are you sure it started at 3.0?</p>
<p>I thought it started at like 3.4 or something.</p>
<p>I dunno. 76/85 raw for a 770 doesn’t seem very generous.</p>
<p>I don’t know. I don’t think I made more than 10 mistakes, which means I could still get at least a 750. I’ll be fine with that.</p>
<p>If it started at 3.4, then the calculations would be weird.</p>
<p>i thought the nh4no3 was the fertilizer
what were the other answer choices for the complex ion question?</p>
<p>Yes, it was.</p>
<p>I can’t seem to remember any of the questions from later on in the test.</p>
<p>about the pressure one…i don’t think it started at 3.0 atm…i remember it being 3.4 or 3.6 and the final answer was 3.0…</p>
<p>and did any remember the qustion that had .5 moles of N2 and .5 moles of O2 in a container or something along those lines?</p>
<p>^yeah.</p>
<p>Why would the pressure drop to 3.0 atm if the temp went up to 320 K from 300 K though? Pressure should have gone up.</p>
<p>Yes, it started at 3.20 atm. And it went down to 300K.</p>
<p>Ah, alright. For some reason I keep remembering it as going up to 320 K from 300 K…but I had 3.0 as my answer, so maybe not.</p>
<p>Does anyone remember the graph comparing two values of an ideal gas?</p>
<p>I think it was comparing volume and temperature, but I’m not sure.</p>
<p>so do either of you remember what the right answer for that question was? was it 3.0 atm?</p>