The Official AP Chemistry Discussion Thread

Test Preparation AP Test Preparation
361

<p>The AP Chem Exam is soooooo fun. Did 6 practice tests and got 85-95%. So ready to take it on tomorrow. :slight_smile: I’m glad I have a chem teacher with a 98% pass rate for the past 10 years. :D</p>

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<p>^ Nice, this is my AP Chemistry teacher’s first year teaching AP Chemistry. Basically, I’m self-studying and hoping for a 5 on the AP test tomorrow. =/</p>

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<p>where are the answers to the 1999 test?</p>

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<p>do we multiply chem mc raw score by anthing?</p>

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<p>1999 MC Answers:

  1. c 2) e 3) b 4) a 5) d 6) a 7) c 8) e 9) c 10) e 11) a 12) b 13) a 14) b 15) d 16) c 17) e 18) a 19) c 20) b 21) b 22) e 23) e … 24) d 25) c 26) c 27) a 28) b 29) e 30) d 31) c 32) d 33) c 34) a 35) c 36) b 37) c 38) b 39) c 40) d 41) e 42) c 43) d 44) c … 45) d 46) c 47) c 48) b 49) e 50) d 51) e 52) b 53) a 54) b 55) d 56) a 57) a 58) c 59) c 60) a 61) e 62) a 63) b 64) a 65) a … 66) a 67) e 68) d 69) c 70) a 71) b 72) b 73) d 74) a 75) d </p>

<p>My teacher gave them to us in a text file, so I reorganized it a little.</p>

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<p>wow goodluck dragon</p>

<p>our schools teacher got preggers halfway through and left.
i had her last year and got a 4
but these years kids are screwed…</p>

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<p>How important are quantum numbers and isomers? I haven’t seen very much of them.</p>

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<p>not terribly important, but they do show up enough (especially in the MC) that if you have time, you should definitely look them over.</p>

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<p>Do you guys think there will be any questions on electroplating?</p>

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<p>hey my teacher just went over that today. I doubt it. But know that in electroplating, E standard is 0.</p>

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<p>Can someone enlighten me on how electroplating is in AP Chem?</p>

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<p>anyone have any review guides/quick links that have some good general stuff we an revise. Like a quick reference of some of the more important concepts. Thanks.</p>

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<p>It’s when the anode and cathode reactions are the exact opposite of each other. for example, Cu2+ + 2e- =>Cu and Cu => Cu2+ + 2e-. Mostly used to plate something, like a golden shoe.</p>

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<p>Here: <a href=“http://www.phs.princeton.k12.oh.us/departments/science/ldusch/appdfs/awesome%20review%20sheet.pdf[/url]”>http://www.phs.princeton.k12.oh.us/departments/science/ldusch/appdfs/awesome%20review%20sheet.pdf&lt;/a&gt;&lt;/p&gt;

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<p>^That’s from Dr. Kumar, right? </p>

<p>for electroplating, but then your balanced reaction doesn’t exist…</p>

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<p>It may appear that, but the ions in the solution will move on to the metal as the electric current still runs with a power source. So only electrolysis.</p>

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<p>From PR</p>

<p>Use I = q/t to get q</p>

<p>q/96,500 = mol e-</p>

<p>Use the half reaction to get mol whatever you’re electroplating</p>

<p>Use molar mass to get grams</p>

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<p>Ah cool, so it’s just another way of saying that the ions are moving to the cathode.</p>

<p>Can someone list all of the IMF bonds in order of strength? And I mean stuff like, ionic, metallic, network covalent (NOT JUST COVALENT), Dipole-dipole, London Dispersion Forces, and Hydrogen Bonds.</p>

<p>Also, for a Lewis structure, how do you determine if it is polar or nonpolar?</p>

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<p>I think this is how it goes
Metallic Network Covalent
H bonding
Covalent
Ionic</p>

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<p>oh and London forces at the bottom</p>