<p>mcpheevn,</p>
<p>1 x 10^-1 is 0.10 M. :P</p>
<p>What did you guys get for the greatest entropy question? I got the one that went (phase) (g) + (g) –> (s)</p>
<p>I’m not sure if this one’s correct…someone please say it is :$</p>
<p>@crazedoutboy
i don’t remember if the question was asking for greatest entropy change or increase. but if it’s increase, you’re reaction is the opposite of increase since gas molecules are consumed. the more gas produced, the greater entropy increase.</p>
<p>What did you guys choose for the TF question of </p>
<p>‘A solution might be less saturated when temperature increase’ because ‘the solubility of the solute usually increase when temperature increases’</p>
<p>I chose TF.</p>
<p>How about the question about the solution with lowest electrical conduction? I chose methanol among Ba(OH)2, HNO3, acetic acid and another option.</p>
<p>Wasn’t there a typo on the question asking you which solution has a H+ concentration of 1 x 10^-1 when all the solutions have 0.10 M (10^-2)? I chose the HNO3 solution.</p>
<p>mcpheeven
im not sure what the TF question is.
lower electrical conduction- it is methanol becuase it does not ionize in solutions
also HNO3 is correct becuase it is strong acid and will ionize almost completely therefore the .1 molarity will give acidity of almost 1
also the one that was acidity 2~6 i think was acetic acid HC2H3O2 because it does ionize and make acetic solution but it doesn’t ionize completely since it is a weak acid. thats as far as i remember</p>
<p>did you guys get 1 for the redox reaction? i think it had HCL in it.
I think the coefficients were something like 1, 3, 1, 1</p>
<p>^ yeah i think thats pretty much what i got it was something like nitrogen and hydrogen that changed the oxidation numbers right?</p>
<p>@mcpheevn I put T, T, CE for the solubility one</p>
<p>^^ lol somehow I thought -log(0.1) = 2</p>
<p>@coffeedrinker: Sorry I put TT on it but no CE since if increasing temperature causes solubility to increase, would the solution become more, and not less, saturated?</p>
<p>^if that’s the case, would the answer be FT then? I forgot what I put</p>
<p>and agree with yjs’s other answers</p>
<p>I believe the solubility one is T,T,CE. Since temperature increase raises solubility, more solute would be able to disolve. Thus, the solution would be less saturated at a higher temperature.</p>
<p>Well I confused saturation with degree of concentration. Since more solute dissolved = more concentrated solution. But I could see how the solution will become less saturated, since more solute needs to be added to make it saturated again.</p>
<p>I chose T for the first clause since I know there are some salts that actually decreases solubility (again, I conflate this with saturation) when temperature increases.</p>
<p>Does not choosing CE means the whole answer is wrong? :(</p>
<p>Very, extremely easy (not to brag or anything)… The solubility TF, I had as T, T, CE. I can definitely remember that there were about four T,T,CE, including this one.</p>
<p>As for the ionization energy, it seems I got that one wrong… oh well!!!</p>
<p>argon has the highest fIE frm all those elements because its a noble gas</p>
<p>OK man i got it wrong ( i screwed it dAm !! <em>stomach wobbles</em> ) </p>
<p>i think i screwed my SAT subject same as SAT </p>
<p>can we change da question lOL 
</p>
<p>how many TT CE were therE ??</p>
<p>Come on guys, post more answers!</p>
<p>What determines the pressure of the gas - size of the container, reaction, number of moles
Increasing entropy - the one with more gas
Radioactive Decay - often emits gamma rays
ultraviolet light - absorbed by the ozone
infrared radiation - causes global warming, re-radiated by the earth
Magnet - Separates the metal from a non-metal
Cheese Cloth and Funnel - Sand from Water
Weird Apparatus on the Right with Water - Separates gases
Sulfur - Found in coal and contributes to acid rain
Highest First Ionization Energy - Definitely Argon
Transition Metal - the one with a d-orbital
Same electron configuration - I forgot the question
For the T/F concerning the amount of oxygen that reacts with something to produce a certain amount of something - I said TTCE because I the explanation was something about limiting reagents (I assumed the math was right).
Ammounium Sulfate - both ionic and covalent bonds
How many atoms in sucrose - Just count them up, I think 24 was the answer
Acetic Acid - pH between 2 and 6
The alcohol - not an electrolyte
H2O and OH- - The acid and the conjugate base</p>
<p>Come on guys, post more answers, I’m doing my part… I thought the people on college confidential were supposed to be smart. This is pathetic.</p>
<p>^ for the magnet, i put seperates copper and iron ( maybe that was a dumb idea on my part)
excited electron - the one without a full p orbital and had a higher level s orbital with 1 e-
SiCl4 - tetrahedral shape
pH of some base ( 2M NaOH ? ) - 12
something with coefficients 6 and 1 so it only uses 3 mol and 0.5 mol leaving 2.5 mol of N2</p>
<p>hmm i dont really remember the questions off the top of my head anymore</p>
<p>one regaring da LI C O % </p>
<p>Was it C 13%li ??</p>
<p>do you remember what the experimental error was?</p>