<p>i dont remember the question about NaCl but i remember i got 0,1M for Cl- in HCL and 0,2 M for NaCl in NaCl and if diluted to 1 L that would be .3</p>
<p>What about the one that had 1L of HCl and we were supposed to tell how many litres of water to add to dilute it to 0.1M or something?</p>
<p>And everybody, how many TTCE’s did you get please?</p>
<p>^Jerrick your answer is correct.</p>
<p>I believe that was 1Lof 1M HCl and 9L of water.</p>
<p>Yea, seriously, how many TTCE did everyone get? Hopefully not very many?</p>
<p>how about the one with "iron has no unpaired valance electron " "since it has an even number of electrons " ?</p>
<p>yes , ellegee , that also what i put . I got 2 TTCE</p>
<p>What do you guys think the curve will be like for this test? I thought the test was pretty straightforward (no really confusing questions) for the most part… though I am sure I got at least two questions wrong…</p>
<p>Jerrick- That was FT.</p>
<p>2 TTCE? Thank god, I was beginning to get worried. I’m sure I got 3 TTCE. Anybody else?</p>
<p>i got two TTCE</p>
<p>what was the answer to the question about observation? one of them was “AgCl has Ag+ ions” and “the soln produces electiricty”?</p>
<p>there was one about whcih of the following is conserved and they gave an equation
i put molecules? the choices were atoms, electroncs, mass, etc</p>
<p>and there was a pH of some weak base i think?
was that 12???</p>
<p>seramaria’s questions</p>
<p>For the Silver Chloride question, I think I got it wrong, I put that it has Ag+ ions is not an observation, but it may be, since the solution has a color which you may be able to identify as silver ions.</p>
<p>I think the question was which of the following is NOT conserved, and it was molecules.</p>
<p>And I had remember some type of Ph problem where it ended up as 12 too.</p>
<p>Ag+ ion was NOT an observation - observation has to be physical and does not involve complicated deductions
The pH was 12 I believe.
Riboflavin is right - molecules are not conserved. For example Na+ + Cl- -> NaCl.
Na and Cl are 2 molecules, while NaCl is one.</p>
<p>hmm i got 3 TT CE ones… one was a guess though</p>
<p>Ag+ ions definitely was not an observation, none of the other ones really made sense either</p>
<p>yes , Ag+ is the answer and so are ph = 12 and molecules</p>
<p>anyone remembers choosing 10 for POCL3 and 1 for NO2</p>
<p>What was the question for POCL3 and NO2?</p>
<p>perhaps jerrick was talking about this question… but,
there was a dilution problem. how much of something do you have to put in to make the final concentraton some molarity? they had two columns, with initial volume and added volume… i picked “c” and there was a 9 in the second column? anyone…?</p>
<p>I put 9 too because you had to add the 9 to make 10 mL (or L), not 10 mL.</p>
<p>Actually, AgCl is a white precipitate, so technically, it cannot conduct electricity. On the other hand, in my Chem Lab we performed experiments on salt identification and the inference from the observation was that Ag+ is present in the salt.
This question was quite ambiguous in the way that we cannot really observe all the ‘observations’ mentioned in the questions as AgCl is very less soluble.</p>
<p>Oh, and 9L is correct.</p>
<p>POCL3 and NO2 questions are two questions about balancing the chemical reaction hehe . I remember getting 10 for POCL3 and 1 for NO2 . And err , there’s also 1 question about the non-exist compound which is AL03</p>
<p>Yeah, I remember that one. AlO3.
Don’t remember any balancing ones though. They were pretty easy; didn’t require the elaborate procedure of going through the Half Reaction method and could be figured out by looking at the choices.</p>
<p>Scores came out… I just found out that I got an 800. 
How did everyone do?!</p>