<p>umm actually i thought that it was quite easy... finished the whole thing in less than 30min, but i'm an international so i guess my syllabus makes me better prepared.
anyway the answer for that gas volume qn with the diagram is volume of water because pV=nRT, so the pressure is impt and that includes both vapour pressure and atmospheric pressure.
i put MgO and SO3 too.
NaCO3 is not neutral.
the neutralisation thing: definitely strong base. that's the only thing u can tell from the equivalence point. the volume may be due to it being a dibasic alkali.</p>
<p>So I completely bombed the SAT II Chem test... didn't have time to prepare with the end of the year work and junk going on, so wow, it went BAD. I don't know what to do, i probably got more than 30 wrong or blank. What do I do? Should I cancel? If I don't cancel will my pitiful score just bring down my entire college app?!?!</p>
<p>i thought todays test was easier than REA,Barrons,ARCO.
which ive been consistently getting wrong around 20 =(</p>
<p>Rayyy, do you mean the mass of the water when you wrote "the volume of water"
The five choices were vapor pressure, atom. pressure, mass of the gas, volume of the gas, and mass of water</p>
<p>do international students and students from different states all take different tests? Or all the questions are the same</p>
<p> which of the following are Characteristic Properties? mass, boiling pt, enthalpy formation, etc.... </p>
<p>i put mass. =X</p>
<p>sorry, i meant mass. yeah i suppose we take the same tests, since all the questions discussed here were the ones i took. just wondering, but is getting 800 considered hard to most students on CC? it just happens that most people i know from my sch get 2400 on three sat 2s, so sat's kind of easy to us.</p>
<p>You are definitely in a super good school. May I ask you where it is?</p>
<p>"which of the following are Characteristic Properties? mass, boiling pt, enthalpy formation, etc.... "</p>
<p>isn't which of the following isn't a characterstic property?</p>
<p>yes, it was which one isn't. I put mass also.</p>
<p>The test was definitely easier than PR practice tests and the Real SAT II practice test.</p>
<p>And, it is possible to titrate a strong acid with a weak base. Someone in a previous reply said it wasn't, but it definitely is. And, likewise, you can titrate a weak acid with a strong base.</p>
<p>Following questions</p>
<p>Weak acid can not titrate strong base/weak acid has fewer H+(aqueous) ions than strong acid. I put FT</p>
<p>For a reaction and saying that compressing it doesnt change the concentration at equlibrium/equlibrium is independant on either temp. or pressure. I put FF</p>
<p>umm yes you can titrate a stronb base with weak acid. The equivalence point will not be at 7 though, it would be somewhere near 9 ~ 11, so you would use a basic range indicator like phenolphthalein.</p>
<p>For some weird reason I said vapor pressure was not a characteristic property</p>
<p>can someone please predict my score?</p>
<p>omitted 4, wrong 5</p>
<p>I thought pressure doesnt change the concentration at equlibrium/equlibrium, only temperature would affect the Keq... so I put TF...oh well, I'm probably wrong. Stupid test!</p>
<p>don't remember the question, but for gases pressure would effect the conc at equi. say X(g) + Z (g)<=> XY (g) with an increase in pressure the conc of XY would increase</p>
<p>does anyone remember that question that for Keq had something like 1/[Ag][Cl] - anyway it had 1 in the numerator and asks you to pick an equation that corresponds with it. would that mean that in the products it would have a solid?</p>
<p>yes, all solids are 1 in equilibrium expressions</p>
<p>The product was AgCl (s), =) </p>
<p>Edit: Actually, I don't think that was it anymore lol....must have been something else</p>