*K=1/P(O2), not sure if cb cares but im pretty sure its the pressure of O2 and not concentration since its in gaseous state.
OH MY… My best friend just texted me and said she had a whole different FRQ yet she had form O… what… my mind is seriously blown. For number two, she had a whole different FRQ. She said she’s never seen that question before… Idk what the deal is 
I’m sad now.
But we all worked so hard for this exam, I’m sure our scores won’t be seriously effected…? I mean… i hope… I feel like collegeboard won’t address this because it’s so messed up. They barely address anything… That’s just my fear that they won’t do anything about it all. And if they do that… well there goes my sleepless week and hard work down the drain. How sad… I’m actually super upset… 
temperature would be the only thing that would slow the reaction down, rate law was rate=k[ClO-] so increasing either blue or bleach would make the change to transparent happen even faster, so by default it would be temperature, right?
My friend thought she had form O too. she then realized she had form O for psych and just got them mixed up.
Ok here is the deal. I know yall don’t want to believe that you in fact did have the questions, but you did. Today when ,y class was talking about it 1/2 the people said they didn’t see them and the other 1/2 said they did see them (and do them). I didn’t notice them until i was checking my work for the 2nd time and noticed them, they were hard to see and very easy to miss. Honestly if they drop them it’s not fair to those of us who had them because they did take time and if you didn’t do them you had more time elsewhere. Also, college board won’t say oh they didn’t see them, they will think you didn’t know how to do them. So yes check your work obsessively next time like I did and you would have seen them. Stop blaming college board for you mistake.
haha oh. my friend didn’t take psych. in my school we have to be juniors to take psych, and we’re just sophomores. seems like a good class though, i can’t wait to take it 
@cocolover123 I kind of confused what you are saying with respect to the multiple choice because basically what you’re saying is that it’s fair to give people the 50 questions that count to some people but give 60 (with the ten that don’t count to others in the to complete in the same amount of time )
Also: for the first one, I said that it would gain mass because the O2 is not weighed on the scale since it is part of the surrounding. thus, when you look at the molar mass of the solid, which is what would end up being weighed, you saw that the molar mass of the products is higher.
@whatisthepurpose Thats wrong. in DeltaG = -RTlnK R isn’t .0821 its 8.314… Sorry bud… You didn’t even need to plug it into that equation. Just find that Delta G is pos, means not TDF, means K < 1…
@nyel345 No one is blaming anybody; it’s not necessary for you to come on and talk us about this. We’re only having a friendly debate and discussing it among each other. I have literally mentioned 500 times how I checked my work obsessively and if anyone obsesses over school work and tests, it’s me. You have no idea what kind of school I go to; we got our tests late and had to get postponed for about an hour because the tests weren’t at where they were supposed to be. So yes please judge us that we blame others and just didn’t know how to do them because that totally makes sense You literally don’t even know us to let us know about our mistakes or not.
I am completely done with this website.
You guys are still talking about this? How do you even remember the questions?
@Kitsyxoxo Hunny, there is no way in hell they are going to make everyone retake the free response. The fact that you think that is hilarious. They were more likely than not experimental, and will not count towards ANYones scores. They will just take it out for everyone. If anything you should be happy you didn’t get it. Because all of us had to waste time answering them when they won’t count while you got extra time to check answers.
Ya’ll need to stop complaining.
Yes–they will either completely take the questions out or do nothing about them at all.
I don’t want to talk about this anymore because I’m seriously getting sick about it and feel like I’m going to throw up. I studied so hard for this, more than anything ever, because I needed a 5 if I wanted to even consider the medical school I wanted to go to. And as everyone is so prone to say, if it was really human error, then there goes all my dreams and all my hard work down the drain. There are no words to describe how upset I am feeling right now. There’s no way I got a 5 when those questions were skipped.
The answer couldnt have been temp, because the rate would have increased and would have decreased the time needed to reach near 0 abs. Pretty sure it was increase [dye]
For 2(e) (no calculator part) I got 120 degrees, I just guessed. I had a C2H5OH model at home, is that correct?
no, 104ish
Hi! Can someone tell me roughly how you guys think I did!!!
- A) i) E=0.34V-(-1.31)=1.65V ii) ← b) i) Increase ii) because the molar mass of ZnO is greater than that of Zn c) i) Higher ii) because of the Nernst equation and Le Chatelier’s principle; as pressure stefi decreases, reaction shifts to the side with most moles of gas (left) making Q<K, increasing E (this seems to be the most controversial question on the Free response, excluding all those questions that you guys claim wasn’t on your test). d) Ca (show all calculations) e) i) 1s22s22p63s23p64s23d10 ii) 4s
- A) i) PV=nRT: n=(0.08206Latmmol-1K-1)(305K)/(0.775atm)(0.0854L)=378mol (I KNOW THIS IS WRONG BECAUSE I am stupid and don’t know basic Algebra, I am so mad I got this wrong, I should’ve checked my work; I even knew it was wrong but couldn’t find the flaw.) ii) (0.200g)(1mol/46.1g)(1mol/1mol)(28.1g/mol)=0.122g b) I know this is wrong, since I got Ai wrong, so its pointless. c) DeltaG=DeltaH-TDeltaS; DeltaG=45.5kJ/mol-(298K)(126J/molK)(1kJ/1000J)= 7.95kJ/mol=-RTlnK; -3.21=lnK; K=0.0404<1.00; he is correct. d) Single bonds everywhere and two lone pairs on the O. e) I’m so mad I got this wrong, I was rushing. f) C2H4 doesn’t dissolve in water because it is nonpolar, and I talked about how LDFs aren’t strong enough. C2H5OH does dissolve in water because it is polar, and I talked about hydrogen bonding and how they’re strong enough.
- A) C6H7O2- + H3O+ → HC6H7O2 + H2O(l) b) M1V1=M2V2; M1=(0.02995L)(1.25M)/(0.04500L)=0.832M c) Methyl Red because the pKa is nearest to the pH at the half equivalence point. d) 5-log(1.7)=4.77 e) I drew a pretty funky curve but made sure it passed through the point (14.975,4.77) and finished around a pH of 1. f) I don’t remember what I guessed for this but I doubt my answer/explanation were both right.
- A) Ca(OH)2 (s) → Ca2+ (aq) + 2OH- (aq) b) I guessed for this one: (0.1)(0.2)2= 0.004 c) Very easy, made all four waters face the Ca2+ atom with the Oxygen atom.
- A) first order because the graph of time vs. ln(absorbance) shows a linear relationship with a negative slope. b) Increase concentration of bleach because since the reaction is first order with respect to belach, increasing the concentration of the food coloring wont change the absorbance. Also, if you increase the concentration of bleach, the reaction will shift to the right making Q>K, making it longer to reach an absorbance of 0 (I think this is wrong, because an increase in concentration will not change K, it will change Q, which will later return to K so the slope will stay the same, so I guess the answer is increase temperature but I don’t know why. c) Change the wavelength to satisfy red, rather than blue, light.
- A) I first compared LiI and KI and talked about how Li+ has a smaller atomic radius than K+, while I- is held constant, resulted in a smaller melting point. I then compared LiI and LiF and talked about how I- has a larger radius than F-, while Li+ is held constant, resulted in a smaller melting point. b) I put LiF because LiOH is a strong base, while HF is a weak acid: LiF + H2O → LiOH + HF.
- A) Q=mcdeltaT=(1.00mol)(24J/molK)(933K-298K)=15240J=15kJ; 15kJ–10.7kJ/mol(1.00mol)=4.54kJ. (I only subtracted 10.7 because I didn’t know why they gave me it, so I just stupidly assumed; I don’t know if that’s right). b) I just wrote how since delta H is way smaller, recycling Al requires less energy, and just to put a calculation I put (1675kJ/mol)(2molAl)=3350kJ. ( i didn't know how to do this)
They could just increase the weight on each question for the tests that didn’t have some questions to equal the same amount of points on the original
@jetynz I know they definitely will not give a new free response section but I thought it was a fair way to solve the problem
Is NaF wrong for #6 ?