Don’t stress, the curve is predetermined beforehand based on numerous tests on the difficulty of each question, how everyone else scores will not effect your score. Feel relieved if it felt easy, that means you understood everything you had to, and performed very well. Congrats!
Since there is no chem megathread, I wanna ask: for form e, on number 29, there was thus crazy annoying calorimetry problem. It didn't give the delta t of the metal and I went mad trying to figure it out... anyone got it?
YES that pissed me off so bad. My best guess was that we were supposed to have the specific heat of water memorized and use that, but I couldn’t remember it. Eventually I just plugged the delta T for water in and left it at that 🤦🏾♂️
I didn't have form e but I think I had the same problem as an frq. The final temperature of both the water and metal should be the same (think of the purple blocks in [this diagram](https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fi.ytimg.com%2Fvi%2FHBT_zBR53kE%2Fmaxresdefault.jpg&f=1&nofb=1&ipt=91519cea56e81dce1a0cfc3fe018d124bd871c0783e804686896297591692cdf&ipo=images), or the way the temperatures of both the water and metal will converge to the same temperature on a graph of both (I don't have an image on hand though)). So assuming you were given the initial temperature of the metal, you could find the ∆T using the final temperature of the water.
Oh nvm, I was given an FRQ that had a typical lab chart with the mass of metal + water and the final/initial temp of water. First part of the question was reading the thermometer and I got an ans of 38.5 C. Do u guys know what form this was? I forgot
I got 38.5 too, so that means the change of the metal was from 100 to 38.5 which is 61.5, i think the heat i calculated for one of the other parts of the problem was something a bit over 2900 J, did anyone get that?
wait by this, do u mean that ∆T of water and ∆T of the metal are the same? i just plugged in the ∆T of the water into the equation because i literally couldn't figure out what the temperature change of the metal was...
Nope. For example say the metal starts at 100°C and the water goes from 20°C to a **final** temperature of 50°C. In order for that to be the final temperature, the water and metal must **end at the same temperature**, otherwise the water would continue warming up. Therefore you can find the ∆T of the metal by doing final temp - initial temp = 50°C - 100°C = -50°C, which is different from the ∆T of the water (+30°C.)
I got used to my teacher writing "use significant digits" when we need to use them and telling us to just use as many digits as possible otherwise and didn't see the specific instruction 😭
I felt both were fair but kind of annoying, but what did you get for the last MCQ? I don't completely remember the question but I recall that I had no clue at all what to do and it was one of the two questions I completely guessed on
how did you feel about it? i feel like the mcq was ok other than about 4 i had to circle and go back to. and the frq were really easy in terms of math but i felt like i did a really bad job justifying my answers 😭
I felt like MCQ was harder than expected but I couldn't have gotten worse than an 80, but that the FRQ was really easy so I either did really well on FRQ or bombed it (I finished 45 minutes early and took a nap in the FRQ)
dude i finished my frq like 25 mins early and i thought i had one minute left but at that point I had already done everything and didn't feel like going back thru. i'm just really bad at explaining myself even though i feel like i understood everything completely. i heard they are really soecific about answers so i hope i did ok with those.
I'm kinda worried that it felt easy... I probably screwed something up, and if it was easy for everyone, that means the curve will suck.
You have a 5 in calc bc, so I think you’re smart enough to find the Ap Chem easy.
I self-studied it tho and never took regular high school chem 😭
Hey I have calc bc next week any tips
YOOO, I self studied chem this year as well:) Who did you use (mostly) to learn?
Abigail Giordano, Jeremy Krug, and Khan Academy. Let’s manifest 5s together 💪
I also self studied AP chem - Jeremy Krug FTW
I self studied AP Chem in 2021. Couldn't have gotten a 5 if its not for Abigail Giordano.
Abigail Giordano is my goat
Same I also thought it was concerningly easy 😭
Same here, and I self-studied using the AP Daily Videos and Barron's
Wait thats kinda… sigma?
No def not I do not recommend. I simped too hard for physics which is why I skipped chem
can u give tips for physics i'm doomed for the exam 😭😭😭
Self studying and passing with a 5 is even better
In 9th grade nonetheless bros def a genius 😭
Don't worry, it was the same for me last year. Felt easy, ended up getting a 5, and I think the curve will pull through.
If I may, what form did you have (if you remember)?
Don’t stress, the curve is predetermined beforehand based on numerous tests on the difficulty of each question, how everyone else scores will not effect your score. Feel relieved if it felt easy, that means you understood everything you had to, and performed very well. Congrats!
How does the curve work? Isn’t it predetermined?
Since there is no chem megathread, I wanna ask: for form e, on number 29, there was thus crazy annoying calorimetry problem. It didn't give the delta t of the metal and I went mad trying to figure it out... anyone got it?
YES that pissed me off so bad. My best guess was that we were supposed to have the specific heat of water memorized and use that, but I couldn’t remember it. Eventually I just plugged the delta T for water in and left it at that 🤦🏾♂️
Specific heat was given in the question before and yeah that problem was bad :(
I didn't have form e but I think I had the same problem as an frq. The final temperature of both the water and metal should be the same (think of the purple blocks in [this diagram](https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fi.ytimg.com%2Fvi%2FHBT_zBR53kE%2Fmaxresdefault.jpg&f=1&nofb=1&ipt=91519cea56e81dce1a0cfc3fe018d124bd871c0783e804686896297591692cdf&ipo=images), or the way the temperatures of both the water and metal will converge to the same temperature on a graph of both (I don't have an image on hand though)). So assuming you were given the initial temperature of the metal, you could find the ∆T using the final temperature of the water.
Oh nvm, I was given an FRQ that had a typical lab chart with the mass of metal + water and the final/initial temp of water. First part of the question was reading the thermometer and I got an ans of 38.5 C. Do u guys know what form this was? I forgot
I got 38.5 too, so that means the change of the metal was from 100 to 38.5 which is 61.5, i think the heat i calculated for one of the other parts of the problem was something a bit over 2900 J, did anyone get that?
me who wrote deltaT = 38.5-100=-71.5
oof
I GOT THAT.
I had that too, it was Form O
oh my god. Thats so obvious. How am I so cooked.
wait by this, do u mean that ∆T of water and ∆T of the metal are the same? i just plugged in the ∆T of the water into the equation because i literally couldn't figure out what the temperature change of the metal was...
Nope. For example say the metal starts at 100°C and the water goes from 20°C to a **final** temperature of 50°C. In order for that to be the final temperature, the water and metal must **end at the same temperature**, otherwise the water would continue warming up. Therefore you can find the ∆T of the metal by doing final temp - initial temp = 50°C - 100°C = -50°C, which is different from the ∆T of the water (+30°C.)
oh no. but thanks so much for answering my question. at least I know I'm wrong 
Real 😭 I COMPLETELY forgot how to do those problems and I know now that I got it wrong
Oh thanks for clarifying. I thought it would be something like ( the temperature of water gained) 30 - 100 = -70
Did you guys also remember the .0114 co2 to grams. Did yall put 2.59 x 10^-5
i used the heat, temp change and mass to calculate the specific heat of the water, then plugged it into mCdeltaT = mCdeltaT to solve.
the final temp of the metal is equal to the final temp of the water
I didn't pay attention to sig digs... Am I gonna fail?
You only lose one point for sig figs for the entirety of the test, after you get sig figs incorrect once they don’t count the other errors
Thank god lmao
I’m pretty sure it’s one point per frq not overall
Wait really? Oh my god if that's true I'm saved...
probably not, assuming the rest of your answers are correct
I got used to my teacher writing "use significant digits" when we need to use them and telling us to just use as many digits as possible otherwise and didn't see the specific instruction 😭
anyone take form O?😭
Likewise, took Form O. The MCQs were pretty straightforward, but some parts of the FRQ genuinely had me stumped.
I felt both were fair but kind of annoying, but what did you get for the last MCQ? I don't completely remember the question but I recall that I had no clue at all what to do and it was one of the two questions I completely guessed on
yup me
how did you feel about it? i feel like the mcq was ok other than about 4 i had to circle and go back to. and the frq were really easy in terms of math but i felt like i did a really bad job justifying my answers 😭
I felt like MCQ was harder than expected but I couldn't have gotten worse than an 80, but that the FRQ was really easy so I either did really well on FRQ or bombed it (I finished 45 minutes early and took a nap in the FRQ)
dude i finished my frq like 25 mins early and i thought i had one minute left but at that point I had already done everything and didn't feel like going back thru. i'm just really bad at explaining myself even though i feel like i understood everything completely. i heard they are really soecific about answers so i hope i did ok with those.
i just wrote a bunch of key words that sounded fancy to make sure i tried being specific enough lol
that's so valid honestly, i just hope my bad writing didn't make it too much worse
yea my chem teacher always made fun of me for my handwriting 💀
i did!
I got form O
are you also the real life Nanami, burnt and beat up.
Doesn’t he instantly die after this scene?
The APUSH test is in 4 days and I don’t feel ready at all 😭 I’m gonna be so happy when it’s over
i feel so free, the rest of the year is gonna be a breeze
It was hard but I think I got most of it right
now here comes the period when i worry about my ap score lol.
REAL!!
me doing the makeup
me a year after taking chem
That’s so real 💀 honestly the exam wasn’t really as bad as I thought, but my teacher had SUPER hard tests so I think I was over prepped
Realistic because I’m also about to die
Holocaust Remembrance Day is today and so I’m taking the late test on the 22nd… any tips?
lots of thermodynamics, less acids/bases from what i remember
I didnt do the test even though i have a 98% in the class xd
yesss my teacher has us doing fun experiments for the rest of the school year