<p>SO2 was definitely a resonance.
Why isn't the test up for me yet?!?!?!
And I got a really low pH for question 1. Now I'm worried, because 12 and 1 is just too big of a difference.... O_O</p>
<p>for #1 i got like 3.18 or 3.somthing can't remember exactly.</p>
<p>I got ~3. Check over my post 15. See if you agree.</p>
<p>Yeah crap I didn't see part f and g for the last one... I messed up #2 part b and still am not sure how to do c; I think I really screwed up the equation part of #5... what are the answers to the question of #5</p>
<p>.. .. ..
:O=S=O: no??? =/</p>
<p>how many points do u need to have on the free response to still get a 5 if you got like 55 rite now multiple choice</p>
<p>You have an extra electron pair over sulfur.
What did you guys for get for the titrated pH for #1?</p>
<p>Wait shouldn't the final pH have been some number over 7 because you're adding a strong base to a weak acid? How did you guys get acidic pHs?</p>
<p>But it wasn't to the equivalence point. I got 4.something...</p>
<p>pH = 3.31. </p>
<p>MnO4 turns the solution purple because the MnO4 can't react with any more of the Iron, so th excess ions accumulate and change the solution's color. right?</p>
<p>Ohhhh ha ha oops.......</p>
<p>why is that an extra pair?? maybe im mistaken but shouldn't there be 18 electrons total?</p>
<p>2.53 10 char</p>
<p>Darkruler - that's exactly what I said for the MnO4 question. I remembered doing a similar lab in AP Bio last year.</p>
<p>How can you do the temperature one without the G=RT lnk equation? I realize that at equillibrium G=0, but you need to use that equation in order to set k=1, right???</p>
<p>lol the Keq question answer was 298 since when RT ln K = 0, the delta G = delta G in standard state....</p>
<p>How did you get that pTang?</p>
<p>I did -log(PKa) + log(.15/.1). Is that wrong?</p>
<p>ahhhh, crap, i see. damn...... I'm sooooo stupid.... jesus. That sucks. I got 140/160 on 2 previous year's tests. I don't think I will get anywhere near that on this..... ahhhhhhhhhhh</p>
<p>does anyone know the curve approx?</p>
<p>100/160 minimum for a 5. possibly up to 110/160.</p>