June 2009 - Chemistry

<p>I guess thats 3 wrong now. Oh well.</p>

<p>I think I got one answer as 22.4 and another as… um 44.8 i believe (22.4 was the second question)</p>

<p>@hbrad yep thats what i got
Its STP (22.4L) but you double the pressure so half the volume.</p>

<p>What’s the curve usually like? :&lt;/p>

<p>yes it was 11.2 but there was another volume questions toward the end. Was it 22.4??? and
number 101 plz answer somebody was it it TTCE</p>

<p>Another gas laws question: initial 1.5 atm, 200K; final .75 atm, 100K-> volume remains at 8 L?</p>

<p>79/85 usually 800</p>

<p>sometimes 80/85</p>

<p>Nyem</p>

<p>thank you. I was so scared there. =]</p>

<p>yea, i remember got 1 answer of 22.4l
what was question 101??? cannot remember…</p>

<p>What do you think the minimum raw score is for an 800? What is the minimum raw score for a 750+?</p>

<p>I’m bordering 790/800. Let’s hope for the latter…</p>

<p>Second part of isomer question: isomers contain the same molecular formulas.</p>

<p>yes 8 i put 8</p>

<p>oh s***
remains 8L
1 blank, 2 wrongs so far</p>

<p>hm anybody remeber the OH question?! it was so gay lol</p>

<p>hahah, for the one with Nitrogen at 11.2, what I did was PV = nRT and then found P=nRT/V and i got like 10.8 because i didn’t know the exact gas constant… so i guessed 11.2 hahah, lucky me.</p>

<p>Also, i put 8</p>

<p>For the section of questions with the number of protons, neutrons and electrons for the five substances, was the noble gas also the answer to the isotope question?</p>

<p>yea, for that one, a choice was used 2 times</p>

<p>im pretty sure the noble gas was c because that had 10 protons so it was neon</p>

<p>O_o Are you guys sure there was a question that required the Combined Gas Law? My PR book said that you don’t need to know the Constant.</p>