October 2009 SAT II - Chemistry - Page 4

jmnd3 · 10-10-2009, 04:07 PM

I think it was the one with the sulfur, but i don't exactly remember the question

abatis · 10-10-2009, 04:11 PM

I think it was the one with the sulfur too.

Hikui · 10-10-2009, 04:13 PM

Freeze. Please don't be a jerk and say it was obvious. It was difficult for me.

People on here can be so arrogant. /oldnews

Freeze · 10-10-2009, 04:13 PM

-contreacerere

Hikui · 10-10-2009, 04:16 PM

SF4 is tetrahedral. I just looked it up.

EDIT: Oops. It's not. It's triagonal bipyramidal.

Freeze · 10-10-2009, 04:18 PM

BF4 with no charge doesn't exist. BF4- on the other hand is tetrahedral. so..... obviously BF4 isn't tetrahedral

Somestudent2 · 10-10-2009, 05:33 PM

Not to derail the topic, but I don't think this justifies a new one.

I haven't taken the official test yet (as I am still taking AP Chemistry), but I have taken the sparknotes test just to get a feel for it. Obviously, sparknotes tests aren't the most renowned for being accurate.

That being said, is the subject test only theory and very simple math? The sparknotes test I took had absolutely zero math, and a lot of the theory was foreign to me from my honors Chemistry class last year. Different schools cover different topics, but the math is generally the same. If the sparknotes test is representative of the actual one, then I am worried.

mowmow721 · 10-10-2009, 06:07 PM

Um... one the second set of questions near the beginning. Is it the ANION that carries the charge in solution?

jle2010 · 10-10-2009, 06:14 PM

when do scores come out??

JackB427 · 10-10-2009, 06:29 PM

pH 4 was definitely right :]

JackB427 · 10-10-2009, 06:32 PM

Okay, so for the question about having 50 mL of 5.00 M NaOH and 150 mL of 2.00 M NaOH. When they were mixed, is the answer 200 ml of 2.75 M?

mj rothlan · 10-10-2009, 07:21 PM

for the last few here, i got anion, pH 4, TTCE on the bronsted lowry, 2.75 M, SF4 as non tetra... what was the meniscus one, it confused me being upside down haha

mowmow721 · 10-10-2009, 07:22 PM

haha the meniscus one totally got me too. 3.82 i think. just shows how little ACTUAL chemistry i do. What did you guys get for the how many moles to react with Cd in the redox reaction (had to balance it to see). I pretty much ran out of time, so I had to skip it and guess wildly.

and then what did you guys get for the VERY LAST balancing question? (like number 65 almost). I got 6, but i had like 20 seconds to do it.

mowmow721 · 10-10-2009, 07:25 PM

sorry i meant 37.38 for meniscus

christiansoldier · 10-10-2009, 07:36 PM

To SomeStudent:

The chemistry subject test does test quantitative chemistry. You'll be expected to do molar mass calculuations and gaseous volumes and percent mass and stuff like that. It's all fairly easy crunching, though, because you don't get a calculator.