October 2009 SAT II - Chemistry - Page 2

spectravoid · 10-10-2009, 12:46 PM

no the question that said

Kw = [OH-][H+] = 1x10^-14

what was the pH

also, the question that asked for the Concentration of OH-

i said 10^-10 was that right?

vanillasky123 · 10-10-2009, 12:47 PM

yea I remember that question... it definitely gave an initial H+ concentration.. I think pH was 4. I got 10^-10 for OH conc though.

abatis · 10-10-2009, 12:50 PM

Me too. 10 chars

vanillasky123 · 10-10-2009, 12:53 PM

what about the H3PO4 question? ratio of H to O.. I kept getting 1:24 for some reason but that wasn't a choice...

College-goer · 10-10-2009, 12:54 PM

tat thing was hard as ba*ls. i got 720 last june and i thought i got an 800 that time....lol wonder what i got this time.

spectravoid · 10-10-2009, 12:54 PM

i think it was 3:64 or something

abatis · 10-10-2009, 12:57 PM

The answer to that should be 3:64

swim2daend · 10-10-2009, 01:00 PM

i thought i did terribly, but u guys r making me feel better lol

Freeze · 10-10-2009, 01:07 PM

Aren't you not supposed to discuss specific questions on the SAT Chemistry Test??? They made us sign on it........ anyways i'm not discussing questions... just speculation of my score

1 omitted
i think i missed 2 with one omit... and i am generally accurate with score predictions
estimated score: 81.5
score range: 77.25-84.....(+- 3 in each direction.... based on probable human error/being worried over nothing)
i think the cut off for an 800 will be 78 this time.
Most likely score ~800...
i think the curve will be generous this year.... it was challenging time-wise, although not too difficult.

spectravoid · 10-10-2009, 01:08 PM

we are allowed to talk about it

http://talk.collegeconfidential.com/...on-lifted.html

kipling123 · 10-10-2009, 01:10 PM

3 omit
dunno but i think i got a lot of them wrong
not feel good about it
feel terrible :S

shen0211 · 10-10-2009, 01:34 PM

wait, so it takes 78/85 to get an 800?

noaflora · 10-10-2009, 01:49 PM

what was the bronsted lowry question?

i also got 3:64, and pOH 10, because the pH was 4...what other questions do you remember?

spectravoid · 10-10-2009, 01:54 PM

Not sure if it was on this test or physics

but wasn't one answer the curve with the inverse relationship with T and R

christiansoldier · 10-10-2009, 01:54 PM

I didn't have to guess on any of the questions. This is my second Chem. I got 790 first time, trying for 800 this time and pretty sure I got it.

From the "going for 800" perspective, this was a pretty fair test. No flame tests. Pretty easy descriptive chemistry. Pretty easy solubility rules. Pretty easy lab questions. The rest is just a matter of studying and knowing how to do it. If you studied the bread and butter and knew your stuff, it was a good test.