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Author Topic: Unit 3 Questions MEGATHREAD :)  (Read 63667 times)  Share 

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DisaFear

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #255 on: June 10, 2011, 09:47:14 pm »
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It was the first exam I did, got a rather embarrassing result
I'll just say I lost ~10 marks in the short answer

My scores are steadily improving though
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Vincezor

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #256 on: June 10, 2011, 09:51:04 pm »
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Quote from: nacho on June 10, 2011, 09:44:50 pm
whatd you guys get on neap 11?
i lost like 3 marks cause i put the wrong things in my calc lmao


Wow what a beast! I lost 6 marks (damn WVO!) but I discussed some of the corrections with my teacher and she said 2 of the questions I marked wrong were right. But who cares, I'll just keep the lower score haha :laugh:
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Andiio

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #257 on: June 10, 2011, 09:53:00 pm »
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What did everyone find was the hardest '11 exam?
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nacho

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #258 on: June 10, 2011, 09:54:30 pm »
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Quote from: Vincezor on June 10, 2011, 09:51:04 pm
Quote from: nacho on June 10, 2011, 09:44:50 pm
whatd you guys get on neap 11?
i lost like 3 marks cause i put the wrong things in my calc lmao


Wow what a beast! I lost 6 marks (damn WVO!) but I discussed some of the corrections with my teacher and she said 2 of the questions I marked wrong were right. But who cares, I'll just keep the lower score haha :laugh:
haha no i meant
"I lost 3 marks, just from the calculator mistakes"
many more marks were followed by those LOL.
I lost 13 overall,
could have/should have been 9, as i went back and 'fixed' up one of my answers only to put the wrong answer and lose 4 marks for the entire second-half :(

edit: damn 6, marks is quite pro. How many exams have you done? Hopefully it was one of your later exams..!
I like neap papers, they are challenging
« Last Edit: June 10, 2011, 09:57:59 pm by nacho »
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Dr.Lecter

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #259 on: June 10, 2011, 09:55:03 pm »
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Quote from: nacho on June 10, 2011, 09:27:05 pm
Explain why it is necessary to remove water and other contaminants from the biodiesel.
my answer - Biodiesel is a fuel, and if it were to combust in the presence of a high concentration of water, the water would prevent the combustion from occurring.

Neap answer: The biodiesel must be of a high enough concentration to burn in the combustion process.

am i correct to some degree?
fyi - water is not very good for older type diesel engines so to some extent, you can justify yourself by saying contaminated biodiesel defeats the purpose of being efficient ( it is not good for engines as it can cause injector nozzle and pump corrosion)
« Last Edit: June 10, 2011, 10:09:18 pm by Dr.Lecter »
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luken93

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #260 on: June 10, 2011, 10:02:34 pm »
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Quote from: Andiio on June 10, 2011, 09:53:00 pm
What did everyone find was the hardest '11 exam?
I think Lisachem was probably the biggest step up, havent done TSFX/TSSM though..
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jane1234

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #261 on: June 10, 2011, 10:16:07 pm »
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 :o I just did KBT 2010 and now I'm freaked out I'm going to fail... are they supposed to be excessively hard!!??
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thushan

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #262 on: June 10, 2011, 10:19:07 pm »
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Quote from: luken93 on June 10, 2011, 10:02:34 pm
Quote from: Andiio on June 10, 2011, 09:53:00 pm
What did everyone find was the hardest '11 exam?
I think Lisachem was probably the biggest step up, havent done TSFX/TSSM though..

Agreed. That was a good, hard paper. Shame I'm still making careless mistakes :S
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nacho

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #263 on: June 10, 2011, 10:19:57 pm »
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Quote from: jane1234 on June 10, 2011, 10:16:07 pm
:o I just did KBT 2010 and now I'm freaked out I'm going to fail... are they supposed to be excessively hard!!??
yea, they tried to make it really hard.
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jane1234

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #264 on: June 10, 2011, 10:23:29 pm »
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Quote from: nacho on June 10, 2011, 10:19:57 pm
Quote from: jane1234 on June 10, 2011, 10:16:07 pm
:o I just did KBT 2010 and now I'm freaked out I'm going to fail... are they supposed to be excessively hard!!??
yea, they tried to make it really hard.


*sigh of relief*

Thank you, I was getting all paranoid because I didn't know what the hell a "chemical marker" did to fuels  :idiot2:
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Vincezor

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #265 on: June 10, 2011, 10:37:46 pm »
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Quote from: jane1234 on June 10, 2011, 10:16:07 pm
:o I just did KBT 2010 and now I'm freaked out I'm going to fail... are they supposed to be excessively hard!!??

Man that was one hell of an exam. The last page where you had to draw the nucleotides... I just couldn't be bothered for only 3 marks :/ I think I lost around ~20 marks overall, not very happy. I wish more exams were hard like this, this and only a few others really made me doubt my ability for chem whilst the others are confidence boosters I guess.

@nacho, yes it was one of my later of exams (I think one of the last five) so don't be worried! :P
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chemkid_23

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #266 on: June 10, 2011, 10:38:38 pm »
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Got a quick question about insight 2008 multi choice qs 6.
It goes that a volume of 180ml of 1.0M of HCl is added to 100mL of 1.0M of NaOh; find the pH of the resultant solution.
Well I've worked it out, and keep getting it wrong. The solutions say that c(HCl)= 0.080/0.250 and not 0.080/0.280 which is hwat i did. Where does the 250 ml come from; solutions say it is 150ml + 100ml; where is the 150 coming from? Please help
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Lols123

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #267 on: June 10, 2011, 10:40:46 pm »
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LOL Jane
I just did that one
It almost made me depressed until I read this thread xD
how did you go on it? ^^
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acinod

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Re: Unit 3 Questions MEGATHREAD :)
« Reply #268 on: June 10, 2011, 11:03:31 pm »
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LisaChem 2011 is probably the hardest exam in the current study design.
LisaChem 2010 was also pretty hard along with 2009 and 2010 TSFX, 2010 NEAP and 2011 CSE.
Insight is challenging but is actually all relavant so they are the best I think.
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Re: Unit 3 Questions MEGATHREAD :)
« Reply #269 on: June 10, 2011, 11:05:56 pm »
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Noob question: What is a mass spectra?  Just need some clarity cause doing TSSM, and their answer confuses me.
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