<p>oh wait, ffffffffff it wasn’t combined gas, it was osmotic pressure. Pi=iMRT
In that case, Pi=(2)(2)(.0821)(K), damn it. Was it referring to NaCl?</p>
<p>@joe: Yes it was super super obvious.</p>
<p>@Rock: yeah, it was 2,2, not 2,1</p>
<p>Yup 10char</p>
<p>ffs, I was rushing and I used the wrong formula. I can’t even get the question right that I’m good in.</p>
<p>Okay so I know four of the five in the last passage,
lactose over sucrose
2-2
same y int higher slope
mgcl2 </p>
<p>anybody remember the last one?</p>
<p>There was one where you plugged in and it asked you for something…I think.</p>
<p>YES! that one was the one that i guessed on. You had to plug it into that formula. Do you remember the answer?</p>
<p>EDIT: I think it was looking for a temperature</p>
<p>What did you plug in?</p>
<p>Ummmmmmm…I dont remember but it was straightforward, not a tricky one.</p>
<p>Ohhhh, it was the one that was referring to the graph. Wasn’t the answer NaCl on that one. It said if it’s at bla bla temp and bla bla Pi than which substance is it?</p>
<p>Ohh yeahh that was it. But i forgot what the answer was lol.</p>
<p>It was the upper lines.</p>
<p>O2 is not air, it is oxygen.</p>
<p>^ Are you getting at something here?</p>
<p>Ya, I meant to reply somewhere else in the thread. >__<
Sorry!</p>
<p>I just wish we could get our scores soon!</p>
<p>Just because it said “dry air,” that does not mean it is oxygen. First of all, as an AP Chemistry student, Peroxide is a polyatomic ion (O2^-2). This has nothing to do with the question. Dry air refers to air free of water vapor; therefore, the answer is NOT H20. Moreover, the question asked for the gas that is most influential. Because air is approximately 80% diatomic nitrogen, N2 has the greatest effect. I agree with all of the other general consensus answers.</p>
<p>Hmkmmm, do you guys remember what was the question: “Which gas causes the decomposition of __________”. what was the blank? We could just google it or something if we knew the question. But, I dont think its N2 though.</p>
<p>The answer is not N2. Just because there is more present does not mean it is the most influential. I believe the problem centered around carbon compounds, which means that oxygen would be the most influential because it can form oxygen bonds with the hydrogen attached to the carbons. Nitrogen is largely inert.</p>
<p>I dont recall any oragnic reactions we learned in AP Chem that involved nitrogen, so I guess the answer is O2 like Gravitron said.</p>