May 2007 - Chemistry

<p>The answer was III only</p>

<p>i got it to be one mol of H atoms, and 11.2 L.....
because in a mol of H20 you have 2 H atoms</p>

<p>The answer is I only. 11.2 L would be true for gaseous H20, but not liquid water.</p>

<p>was II really 8.05 mol O2? I'm positive mine said 8.5 grams of oxygen</p>

<p>Either way, they're both wrong. There are 8 g of O2.</p>

<p>8.05 grams my bad... and i'm pretty sure III is right.
someone help! *** >_<</p>

<p>so... I guess i didn't get an 800... unless the curve is like a 5 then maybe.</p>

<p>The ionization energy was the line that went from ground state to infinity.</p>

<p>^^ yep... i didnt get an 800 either then =( 4 wrong already</p>

<p>III isn't right, because the 22.4 11.2 thing is only for gaseous water, as Foil said. And I said I and II... :(</p>

<p>for the bohr diagram. i just remember putting A, E, C</p>

<p>Which questions did you guys get CE on. I remember the evaporation lowering temperature was one</p>

<p>I remember that one too.</p>

<p>did anyone come across an equation that had to be balanced and yet there was no answer? i got 7, but the largest choice was 6. </p>

<p>I didnt think that was easy. i skipped 6!!!!! im seriously debating cancelling my score :[</p>

<p>oh i remember one where it was a carbon hydrogen compound and it had 16 percent hydrogen and i got 7 carbons or something</p>

<p>i ended up skipping it. did u put 6?</p>

<p>I got 7 carbons as well.... I did HORRIBLE</p>

<p>Omitted 7, possibly 10+ wrong.... how bad could that be?... It's at least 600 right?</p>

<p>lol, yeah. does anybody want to group togther a master list for the answers? and anybody want to contribute Qs?</p>

<p>sure if i can remember....</p>

<p>I got 7 carbons too... but I'm blanking now and cant' remember what I put or didn't put and it's making me panic. :-P... as for questions... for the Bohr atom, the one that represents the smallest change in energy levels was E, the one that took the electron to it's excited level was A, and the one that represented its ionization energy was E. What about the one that asked for the best way to separate methyl alcohol and water. Fractional crystallization? That's what I put, because I thought that alocohols are supposed to have a very low freezing point... but now i don't remember if that's really right.</p>

<p>so what happens if everyone agrees that a choice wasnt listed? can we do something? or is it too minor? this is bugging me big time. :]</p>