@YoohooAddict 48 isn’t bad at all! I started with a 43 and after reading through Barrons and Princeton Review and doing practice tests, I ended up with a 71 on my last one. You still have a week so it’s not too late to get above a 700. Barrons is always a bit harder than the actual test anyways.
@picuberoot You don’t understand. Here’s what happened. I’m currently a sophomore. In the middle of the year, I decided to get this prep book to help prepare because I’m only taking a basic chemistry course (not AP or Honors). So I took the diagnostic test halfway through the year and got a raw score of like 24. Then after reading through the entire book, I took the first practice test in the back and got a 48. I mean it’s an improvement but I want to get higher. Is Barrons really that hard?
barrons is that hard in my opinion. get the blue book, strongly recommend it. Most libraries have it, but it’s super helpful to see what the actual test difficulty is.
I don’t know about getting the blue book. I’m taking the test this saturday… I might get it if I can.
google omalley chemistry subject test review and youll find some more pretty accurate practie tests if you cant get the blue book
Cool thanks for the help.
Hey, do you guys know if the uni I submit my SAT test to can see that im in grade 8 when I did the test?
I’m stressing so much about this test… Does anyone know if the official College Board test is reflective of the real thing? I score between 720 and 750 on Barron’s, but I did much, much better on the College Board one I took.
//
Is it really necessary to know what things like bleach/household stuff do? That came up in the College Board practice test (answer: it is a good oxidizer, so the compound in it is NaClO), and I know nothing about cleaning supplies. I don’t even know if we have bleach in my house–we certainly never use it.
I really hope that I’ll do well, since I haven’t exactly read Barron’s thoroughly (read: I’ve only read half the chapters and done no practice problems besides those in the practice tests). I mean, I think I’ve learnt a decent amount of information in Honors Chem. The only real new pieces of information I found were things like the 22.4 L/mol gas rule, organic chemistry, and some of the things from the lab questions.
@guy6127 for that question, since you know the boiling point elevation, you can find how many moles of particles of urea were found per mole of water. I don’t know the specific formula, but you’re basically going backwards from whatever you’d do to find the boiling point elevation.
@guy6127 deltaT = kmi
m: molality of the solution.
k: A constant characteristic of the SOLVENT. Baron’s forces you to remember it. I have no idea if CB will require us to remember it too. Just to be safe, though: k of boiling point of water = 0.51, k of freezing point of water = 1.86.
i: the number of dissolved particles. E.g.: NaCl - 2, glucose - 1. In more complex cases, they’ll give you the Ka or Kb, and you’ll have to do a bit of calculation. For example:
HCOOH <-> H+ + COOH-
At the beginning: 1 ~ 0 ~ 0
Reaction: x ~ x ~x
Equilibrium: (1-x) ~ x ~ x
Ka = (x^2)/(1-x)
i = x + x + 1 - x = 1 + x.
If you prefer concrete formulas to reasoning your way through, the relevant formulas are:
Keq = M.(x^2)/(1-x)
M: molarity of the solution.
In the cases that x is a lot smaller than 1: Keq = M(x^2) => x = squrt(Keq/M).
i = (n-1)x + 1
n: The number of ions created during ionization. In the above example, n = 2.
Eh, I don’t think they’ll ask us about the complex cases though. That’s university level work. At least, it is in my country.
I’m cramming haha. I started yesterday and I’m on chapter 6 in Barron now. (YAS)
I WAS really stressed out thinking that Im not going to get through the material, but let me tell you, now I’m pretty much stress-free. I know that if I ACTUALLY GET THINGS DONE, I’ll be able to finish the book 
So for everyone who’s feeling kinda stressed out now: if you start getting things done (instead of watching YouTube for half a day and eating for the other half, which is what I was like last week 
), you’ll get a sense of accomplishment and that’ll SIGNIFICANTLY reduce ur stress level 
@Synonyms
Thanks a lot mate!!
What is the raw score for an 800 on the actual test?
Different books have different scores
True False question advice anyone??
The best advice I got was from post #65
I’m boutta take another practice test. Hope it goes well.
And I scored a score of 60/85 but minus 4 points due to wrong answers. so 56 raw score which according to Barron’s translates into a 700.
Good improvement, I might take one today
The 82/85 that is required for an 800 is making me feel nauseous…that means you either omit 3 questions or omit 1 and miss 2. Both variations sound really hard -_-.
82??
Its got be lesser than that!
Barron and sparknotes put it around 79