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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: melodrama on November 15, 2007, 09:56:38 am

Title: Exam 2 Thoughts
Post by: melodrama on November 15, 2007, 09:56:38 am
Yay/nay?

Easier BY FAR than the 06 paper. That damned paper sent me into a frenzied panic this morning.
Title: Exam 2 Thoughts
Post by: melodrama on November 15, 2007, 10:04:40 am
My answers:

BDCDBDABADACBBACCDBC

Mg, U, Al, B, O, Sn
Mass spectrometer
113, 113, 171
3, 7
Tl
279Rg

[He]2s2/2p2, [Ar]3d6/4s2, [Ar]3d5
Group 6 Period 5

C6H12O6
Cwhatever+12O2 -> 12CO2+11H2O
-5632kJmol^-1 (x2 because maltose has two glucoses)
30

goes to C17H35COOCH3 + H2O (sorry, typo)

Z group was CH3
Z2, Z1
Denatured by pH
198
6.69g
19.1g
5.73x10^3kJmol^-1

Platinum
25deg. C
pH 0
Cd (s) increase pH, decrease H+... etc. etc. Cd is oxidised


0.0275 mol
1:1
+1
goes to X2+ + e- -> X+ (apparently it's X3+, with the oxidation state +3)
Cu2+ + 2e- -> Cu
941C
4.8 x 10^-3 mol
9.78 x 10^4Cmol^-1
Cu fell off
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 10:10:55 am
Anyone got a copy of the exam paper? If someone gets it to me... like now, I could produce solutions before I head off to my chemistry exam.
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 10:13:01 am
Extremely tricky. Simplistic in places, but overall tricky.

BTW, spirited, your "X" thingy is wrong. It's X2+ loses an electron to form X3+.
Title: Exam 2 Thoughts
Post by: cara.mel on November 15, 2007, 10:13:17 am
In the 2nd last question, X is losing electrons
X2+ -> X3+ +e-

The last multi choice was worded bad. I put D, because I thought it meant 'the amount of energy in each form turned into electrical'. So in the turbine nearly all of the energy -> electrical, but in the coal only a small amount turns into electicity. My chem teacher put C. Meh, don't care any more.

Overall, I thought it was of a good difficulty, so I'm happy with it :)
Title: Exam 2 Thoughts
Post by: melodrama on November 15, 2007, 10:18:10 am
oh yeah. damnnn -2 marks already.
Title: Exam 2 Thoughts
Post by: v2shan on November 15, 2007, 10:20:17 am
Quote from: "kingmar"
Extremely tricky. Simplistic in places, but overall tricky.


yeah totally agree, nicely put
Title: Exam 2 Thoughts
Post by: Jasper on November 15, 2007, 10:23:53 am
Quote from: "Spirited Sloth"
Cu fell off


Oh oh, looks like I missed a question  :?

How many marks was this question worth?

Overall, exam was good, a few tricky multi's but nothing too too bad.
Title: Exam 2 Thoughts
Post by: melodrama on November 15, 2007, 10:25:39 am
that's the one where you have to account for the higher F value. don't worry, it was only 1 mark.
Title: Exam 2 Thoughts
Post by: Jasper on November 15, 2007, 10:27:19 am
Quote from: "Spirited Sloth"
that's the one where you have to account for the higher F value. don't worry, it was only 1 mark.


Oooohh...yeah I did that question, just got a different answer...pphhheeewwwww.

I think I got something like the current was read incorrectly (too high) or something, don't know if it's right though.
Title: Exam 2 Thoughts
Post by: v2shan on November 15, 2007, 10:29:02 am
Quote from: "Spirited Sloth"
My answers:

Platinum
25deg. C
pH 0
Cd (s) increase pH, decrease H+... etc. etc. Cd is oxidised



i don't get it......can som1 explain why pH =0 pls ?
Title: Exam 2 Thoughts
Post by: winter_89 on November 15, 2007, 10:30:45 am
standard condition means 1M of H+ , hence 0 pH
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 10:31:20 am
If anyone has particular concerns on a particular question, if you tell me the question, I can try to help you find the answer.
Title: Exam 2 Thoughts
Post by: bonghead on November 15, 2007, 10:32:40 am
i ended up running out of time i had to leave 5 multiple choice answers
Did everyone finish it easily?
Title: Exam 2 Thoughts
Post by: *insert witty name here* on November 15, 2007, 10:33:31 am
concentration is 1M
ph = -log [h+]
    = - log 1
    = 0
Title: Exam 2 Thoughts
Post by: v2shan on November 15, 2007, 10:35:56 am
Quote from: "*insert witty name here*"
concentration is 1M
ph = -log [h+]
    = - log 1
    = 0


oh right lol  i forgot my unit 3 stuff
Title: Exam 2 Thoughts
Post by: Daniel15 on November 15, 2007, 10:38:14 am
Oh boy...
You can probably tell how well I went  :roll:

The good thing is that I went better than I did on my practice exam.
The bad thing is I worked out the maximum score I can get on that exam is like 35%... I left heaps of it blank and left like 20 minutes early. I was flicking through it and adding up the marks, and one of the supervisors was looking at me like I was crazy. :P

It's not all bad... Some people went even worse than I did and left one and a half hours early  :shock:



Oh, and, if we put stupid answers, do we get marks taken off? For some question asking about which element was a better reductant or something (can't remember exactly what), I put "It's a totally awesome element and stuff" as the explanation  :lol:
Title: Exam 2 Thoughts
Post by: mtyp on November 15, 2007, 10:38:52 am
if i did not take into account the energy needed to heat up the aluminium, will i lose all the marks or will i still get consequential marks?
Title: Exam 2 Thoughts
Post by: bilgia on November 15, 2007, 10:39:28 am
farrr according to spirited sloths answers (not mc) i lost like 6marks!!!!
what do u reckon A+ cutoff will be
??
Title: Exam 2 Thoughts
Post by: melodrama on November 15, 2007, 10:41:08 am
yeah, but i could be wrong... i'd put more faith in ahmad/coblin
Title: Exam 2 Thoughts
Post by: asa.hoshi on November 15, 2007, 10:41:32 am
MC
1. B
2. C
3. B
4. C
5. B
6. B
7. C
8. B
9. C
10. B
11. B
12. C
13. B
14. C
15. B
16. B
17. C
18. B
19. C
20. B

im bound to get at least 5 rite :)
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 10:43:44 am
Can't tell at this early stage. More input = better results.

Don't base it on me/spirited/care.mel/anyone else that said it was extremely easy because it was tricky.

Last multi-choice = wha?
H+/H2 gas pH = guh?
Otherwise, no emission spectra. No "learn chem guys". = Kingmar does very nicely for himself and can afford to lose marks in BM.
Increment, there you go!!!

spirited got a different multichoice answer from mine - Question 8, I put D, she put B. Anyone got a clue what it is?
Title: Exam 2 Thoughts
Post by: Markos on November 15, 2007, 10:44:31 am
I liked this exam, to a certain etxtent. Seemed to have heaps of unusual questions... stuff that required more than just systematic thinking
Title: Exam 2 Thoughts
Post by: Daniel15 on November 15, 2007, 10:46:30 am
Quote from: "asa.hoshi"
MC
1. B
2. C
3. B
4. C
5. B
6. B
7. C
8. B
9. C
10. B
11. B
12. C
13. B
14. C
15. B
16. B
17. C
18. B
19. C
20. B

im bound to get at least 5 rite :)


Bahahaha
I would have done C for everything :P

Reminds me of the GAT...
Some kids were going through past GAT papers, looking for patterns in the multiple choice answers. They used several patterns (eg. all Cs, ACDCACDC..., ABCDABCD..., etc.) and worked out which pattern gave the best average mark on the past papers (I think it was something like ACDCACDCACDC... averaged about 45% or something :P), and used that pattern on the GAT  :lol:  :lol:
Title: Exam 2 Thoughts
Post by: squance on November 15, 2007, 10:47:30 am
Quote from: "*insert witty name here*"
concentration is 1M
ph = -log [h+]
    = - log 1
    = 0


Nooooo!!!!!  I put 7 as the pH....  :cry:
Title: Exam 2 Thoughts
Post by: JohnS on November 15, 2007, 10:48:19 am
Quote
spirited got a different multichoice answer from mine - Question 8, I put D, she put B. Anyone got a clue what it is?


I have it on good knowledge that its D
Title: Exam 2 Thoughts
Post by: bilgia on November 15, 2007, 10:48:26 am
Quote from: "squance"
Quote from: "*insert witty name here*"
concentration is 1M
ph = -log [h+]
    = - log 1
    = 0


Nooooo!!!!!  I put 7 as the pH....  :cry:


same rofl..im so pissed off,!
the [He] question was awkward for me as well...i had way different answers to spirited sloth....
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 10:48:40 am
Amusing. At least the GAT isn't worth anything... :P

Asa.hoshi, you got 4 right. :P
Title: Exam 2 Thoughts
Post by: bilgia on November 15, 2007, 10:49:01 am
Quote from: "JohnS"
Quote
spirited got a different multichoice answer from mine - Question 8, I put D, she put B. Anyone got a clue what it is?


I have it on good knowledge that its D

i put D as well
Title: Exam 2 Thoughts
Post by: JohnS on November 15, 2007, 10:50:35 am
I lost 4 marks
What will i get for 70/73 in first exam and 79/83 on this one?
Title: Exam 2 Thoughts
Post by: ltee on November 15, 2007, 10:51:04 am
gahh i lost like at least 7 marks. three from multiple choice. i didnt even got grams T_T i had kilograms of that ethanol to change from 18.5 to 100. gay. and i didnt get the ph either... can i still get an A? oh and how much was it out of

edit - that was according to sloth's results. i got the D for 8 as well, so maybe at least 6 marks
Title: Exam 2 Thoughts
Post by: melodrama on November 15, 2007, 10:51:56 am
D? arghhhhh damn. i'm on 3 now.
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 10:57:14 am
Stupid mistake on the monounsaturated question.

But no-one down my end is complaining. I'll say I did comparatively well and leave it at that.
Title: Exam 2 Thoughts
Post by: hakeemthedream on November 15, 2007, 10:59:13 am
HEY GUYS

made my typical stupid mistakes costnig me big time

if i got 68/73 on 1st exam

and i get 80/84 on this one

can i still get 45 raw?

cheers

FUCK ph, didnt think, fuck oxidation, i put +1 and got wrong equation and fucked up question 4 multi im pretty sure

4 marks
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 11:04:00 am
Quote from: "hakeemthedream"
>>rant<<


Angry? :x

45 is possible. You've dropped 9 marks.
Based on this Unit 4 exam, which wasn't overly difficult, but tricky, the standard will remain unchanged, I suspect, considering it didn't change for Unit 3. People will fall for the tricks, and the last multi-choice was pretty craphouse.
Title: Exam 2 Thoughts
Post by: squance on November 15, 2007, 11:06:06 am
Quote from: "kingmar"
Quote from: "hakeemthedream"
>>rant<<


 People will fall for the tricks, and the last multi-choice was pretty craphouse.


What was the last MC about again?
Title: Exam 2 Thoughts
Post by: Daniel15 on November 15, 2007, 11:07:41 am
Quote
Cd is oxidised

That was it I think... The one where you had to write an explanation?
I wrote "Because it's cool like that. It's a totally awesome element" as the explanation  :lol:
They don't take marks off for stupid answers, do they? My thoughts are usually "If I have no clue how to answer this question, put a random answer" :D
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 11:10:50 am
It was the conversion of energy.

Even on a bad day I couldn't devise such a shithouse worded question.

It was about which contributed the most energy to generate a specific amount of electricity. (this is better worded than the VCAA one)

Mechanical, Thermal, or Chemical.

I'm told the answer is Chemical contributes the most (then heat is lost), then thermal to drive the turbine (more heat lost), then mechanical (more heat loss).

Hence, the answer from least to most is Mechanical, Thermal, Chemical in terms of energy contribution to a specific amount of electricity generated.

Hence, answer is C.
Title: Exam 2 Thoughts
Post by: asa.hoshi on November 15, 2007, 11:11:03 am
Quote from: "squance"


What was the last MC about again?


During the production of electricity in a coal-fired power station, energy is present in the following forms.
I. mechanical energy of turbine.
II. chemical energy of coal and oxygen.
III. thermal energy of steam.

The amount of energy in each of these forms that take part in the generation of a fixed quantity of electricity is, from lowest to highest
A. III, I, II
B. I, II, III
C. I, III, II
D. II, III, I
Title: Exam 2 Thoughts
Post by: hakeemthedream on November 15, 2007, 11:12:57 am
scratch that possibly 6 marks
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 11:13:36 am
For that question:

pH rises. Thus, H+ ion conc. decreases. Thus, H+ --> H2 (g).
Thus, H+ is reduced. Thus, Cd(s) is the reductant.

Cd is oxidised is strictly speaking incorrect unless you follow that working (or so I'm told).
Title: Exam 2 Thoughts
Post by: squance on November 15, 2007, 11:15:38 am
Quote from: "asa.hoshi"
Quote from: "squance"


What was the last MC about again?


During the production of electricity in a coal-fired power station, energy is present in the following forms.
I. mechanical energy of turbine.
II. chemical energy of coal and oxygen.
III. thermal energy of steam.

The amount of energy in each of these forms that take part in the generation of a fixed quantity of electricity is, from lowest to highest
A. III, I, II
B. I, II, III
C. I, III, II
D. II, III, I


I put A........

Because thermal energy gave out the lowest energy or something??
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 11:15:40 am
Quote from: "asa.hoshi"
Quote from: "squance"


What was the last MC about again?


During the production of electricity in a coal-fired power station, energy is present in the following forms.
I. mechanical energy of turbine.
II. chemical energy of coal and oxygen.
III. thermal energy of steam.

The amount of energy in each of these forms that take part in the generation of a fixed quantity of electricity is, from lowest to highest
A. III, I, II
B. I, II, III
C. I, III, II
D. II, III, I



You have the exam? Might wanna post that in another thread w/ coblins answers so we don't splat that on people who want to discuss but don't wanna feel worse about dropping marks.
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 11:16:14 am
Quote from: "kingmar"
It was the conversion of energy.

Even on a bad day I couldn't devise such a shithouse worded question.

It was about which contributed the most energy to generate a specific amount of electricity. (this is better worded than the VCAA one)

Mechanical, Thermal, or Chemical.

I'm told the answer is Chemical contributes the most (then heat is lost), then thermal to drive the turbine (more heat lost), then mechanical (more heat loss).

Hence, the answer from least to most is Mechanical, Thermal, Chemical in terms of energy contribution to a specific amount of electricity generated.

Hence, answer is C.


Self quote.
Title: Exam 2 Thoughts
Post by: asa.hoshi on November 15, 2007, 11:19:38 am
Quote from: "kingmar"



You have the exam? Might wanna post that in another thread w/ coblins answers so we don't splat that on people who want to discuss but don't wanna feel worse about dropping marks.
give me one good reason why i should type it up? coz it takes a while you know...
Title: Exam 2 Thoughts
Post by: hakeemthedream on November 15, 2007, 11:19:56 am
FARK, LOST 6 MARKS

classic fucking mistake

wrote 32 for monounsaturated, my eyes just skipped it, i FUCKING DIDNT THINK< as usual, way too many stupid errors

thast 78/84 and 68/73, i just wanted 45, probs 44 now MAX?
Title: Exam 2 Thoughts
Post by: bilgia on November 15, 2007, 11:21:18 am
hmm who can predict a study score range from getting a B+(high) on midyrs to a high A/low A+ on end of yr?
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 11:22:25 am
Quote from: "asa.hoshi"
Quote from: "squance"


What was the last MC about again?


During the production of electricity in a coal-fired power station, energy is present in the following forms.
I. mechanical energy of turbine.
II. chemical energy of coal and oxygen.
III. thermal energy of steam.

The amount of energy in each of these forms that take part in the generation of a fixed quantity of electricity is, from lowest to highest
A. III, I, II
B. I, II, III
C. I, III, II
D. II, III, I


Heh, answer is C without even reading the question. Options A and C indicate II is certainly the last one. Options B and C indicate I is certainly the first one. C is the intersection. (edit: you can even reinforce this further by using this reasoning on the middle one, it's certainly III by options C and D, C is the ultimate intersection!)

The answer is C too, from what I've read.
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 11:23:05 am
Quote from: "asa.hoshi"
Quote from: "kingmar"



You have the exam? Might wanna post that in another thread w/ coblins answers so we don't splat that on people who want to discuss but don't wanna feel worse about dropping marks.
give me one good reason why i should type it up? coz it takes a while you know...


Sorry, wasn't saying type it up.

I was hoping you could scan it up. Our school is cheap with its exams.

Never mind, just a thought.

hakeem, calm mate. You'll still get 40+. That's virtually guaranteed.
I wish I could drop 9 marks in BM. I'd be lucky to get out of it with a 40 at this rate.
Title: Exam 2 Thoughts
Post by: ezflow on November 15, 2007, 11:24:32 am
Quote from: "bilgia"
farrr according to spirited sloths answers (not mc) i lost like 6marks!!!!
what do u reckon A+ cutoff will be
??


I reckon the A+ cut-off will be 90%

But, what do I know? I can't read the minds of every chemistry student.
Title: Exam 2 Thoughts
Post by: asa.hoshi on November 15, 2007, 11:24:38 am
i have no scanner.
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 11:25:41 am
Quote from: "asa.hoshi"
i have no scanner.


Nah, it's alright. You don't have to do it. Just post up questions that seem to be of major concern to people, if you wanna help out.

I reckon you should lend it to someone with a scanner though, haha.
Title: Exam 2 Thoughts
Post by: asa.hoshi on November 15, 2007, 11:28:38 am
Quote from: "coblin"
Quote from: "asa.hoshi"
i have no scanner.


Nah, it's alright. You don't have to do it. Just post up questions that seem to be of major concern to people, if you wanna help out.

I reckon you should lend it to someone with a scanner though, haha.
haha i'll try taking photos of it OK?
Title: Exam 2 Thoughts
Post by: gfb on November 15, 2007, 11:31:23 am
My teacher had the exam paper. If i had it, i would've scanned it.

The exam was alright. Made stupid mistakes. Its my 5th subject anyway hehe so don't really mind.
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 11:32:54 am
Quote from: "asa.hoshi"
Quote from: "coblin"
Quote from: "asa.hoshi"
i have no scanner.


Nah, it's alright. You don't have to do it. Just post up questions that seem to be of major concern to people, if you wanna help out.

I reckon you should lend it to someone with a scanner though, haha.
haha i'll try taking photos of it OK?


HAHA. Sounds cool. Email to my email address (you have it), or post them up here.

I'll be back at 5pm.
Title: Exam 2 Thoughts
Post by: golids on November 15, 2007, 11:34:32 am
exam was alright i thought

a few dodgy MC but other than that i think i did pretty well
Title: Exam 2 Thoughts
Post by: asa.hoshi on November 15, 2007, 11:35:06 am
i have no choice but the type it up now. coz my sis took the camera. i'll just type up th MC section
Title: Exam 2 Thoughts
Post by: JohnS on November 15, 2007, 11:35:27 am
Quote from: "JohnS"
I lost 4 marks
What will i get for 70/73 in first exam and 79/83 on this one?


Anyone?
Title: Exam 2 Thoughts
Post by: ankit123123 on November 15, 2007, 11:36:20 am
im very dissappointed. i needed to get 35 + in chemistry as it is a pre req for medicine. after all that umat preparation and getting an interview, it would suck balls if i dont get that 35 in chem.

im angry at myself more than the difficulty of the paper or the time ... i cant believe i made such stupid errors. the Cadmium one i basically disregarded 2 years of chemistry which said H+ conc decreases with increasing ph. thats what hurts. argh.
Title: Exam 2 Thoughts
Post by: vce_2007 on November 15, 2007, 12:00:05 pm
Quote from: "bilgia"
hmm who can predict a study score range from getting a B+(high) on midyrs to a high A/low A+ on end of yr?


ooo i can!

last year i got B+ mid year (not sure whether it was high or low) and an A+ end of year (im guessing it was pretty low)

and i got 35 raw

keep in mind that im pretty sure my grades were low for that range AND this years unit 3 chem was harder than last years...

so ur up for anything about a 35 to 39 raw :D
Title: Exam 2 Thoughts
Post by: kaney1234 on November 15, 2007, 12:05:21 pm
Thought it was pretty fair
Also got D for multichoice question 8

Also with the first question part 4 was it Nitrogen? It was the one that gave the first 4 ionisation energies. 3 really low ones then a high one.
What type of score would you expect if you dropped say 4 marks over the whole year and top of sacs? Would it be 48?
Title: Exam 2 Thoughts
Post by: Jasper on November 15, 2007, 12:42:28 pm
Quote from: "JohnS"
Quote from: "JohnS"
I lost 4 marks
What will i get for 70/73 in first exam and 79/83 on this one?


Anyone?


Quote from: "bilgia"
hmm who can predict a study score range from getting a B+(high) on midyrs to a high A/low A+ on end of yr?


Quote from: "kaney1234"
What type of score would you expect if you dropped say 4 marks over the whole year and top of sacs? Would it be 48?


I may be wrong about all of these, but if I had to predict...

John, 43 - mid 40's + (depending on your SAC marks)

bilgia, high 30's

Kaney, 47/48
Title: Exam 2 Thoughts
Post by: Defiler on November 15, 2007, 12:43:13 pm
Exam went great I'm all finished with exams so laters ~~~
Title: Exam 2 Thoughts
Post by: melanie.dee on November 15, 2007, 12:47:25 pm
i fucked up that X question too.. damn. infact. i screwed the whole thing haha theres goes any chance of getting an A+ i hope i scrape an A
Title: Exam 2 Thoughts
Post by: golids on November 15, 2007, 12:48:09 pm
Quote from: "ankit123123"
im very dissappointed. i needed to get 35 + in chemistry as it is a pre req for medicine. after all that umat preparation and getting an interview, it would suck balls if i dont get that 35 in chem.

im angry at myself more than the difficulty of the paper or the time ... i cant believe i made such stupid errors. the Cadmium one i basically disregarded 2 years of chemistry which said H+ conc decreases with increasing ph. thats what hurts. argh.


getting into any health case is a bitch, stupid UMAT would have fucked up heaps of people including me
Title: Exam 2 Thoughts
Post by: golids on November 15, 2007, 12:49:42 pm
does anyone know the answer to the q why there is a barrier

i cancelled out catalyst and that it to prevent the products from coming into contact with the electroylyte and had B and C left over. think i might have put B which would be wrong i'm hearing but can anyone confirm
Title: Exam 2 Thoughts
Post by: bonghead on November 15, 2007, 01:13:03 pm
Quote from: "golids"
getting into any health case is a bitch, stupid UMAT would have fucked up heaps of people including me


Dont even start me on the Umat. that peice of shit is the biggest load of inane crap compiled into one pointless test. It serves no purpose other than destroying the potential of perfectly capable students
Title: Exam 2 Thoughts
Post by: Bombers on November 15, 2007, 01:13:47 pm
Quote from: Spirited Sloth
My answers:

BDCDBDABADACBBACCDBC

i thought they wanted the highest Oxidation state for 1st multi choice  :evil: , a mark there already. So pissed.
 My answers were.
DDCDBDADADACDDACCDDA

Platinum
i SAID CARBON is that accepted. :x
Title: Exam 2 Thoughts
Post by: bilgia on November 15, 2007, 01:19:09 pm
Quote from: Bombers
Quote from: "Spirited Sloth"
My answers:


Platinum
i SAID CARBON is that accepted. :x


i said carbon   :shock:
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 02:15:16 pm
Quote from: "ankit123123"
im very dissappointed. i needed to get 35 + in chemistry as it is a pre req for medicine. after all that umat preparation and getting an interview, it would suck balls if i dont get that 35 in chem.

im angry at myself more than the difficulty of the paper or the time ... i cant believe i made such stupid errors. the Cadmium one i basically disregarded 2 years of chemistry which said H+ conc decreases with increasing ph. thats what hurts. argh.


Sorry for scaling you down, Ankit.
By the way, the concentration of H+ DOES decrease! That's why pH increases! Cd is the reductant, H+ is reduced, H+ conc. is lowered, pH rises. You're not wrong.

With carbon, it will depend. I can't remember the question anymore.
Carbon should be fine, it's relatively inert. Platinum is the ultimate electrode - thus the possibility of it reacting like carbon does in the Hall-Heroult is nil.
Title: Exam 2 Thoughts
Post by: melanie.dee on November 15, 2007, 02:17:57 pm
i had no idea about the electrode so i was like um er when all else fails, plaaatinumm!

i really think a stuffed a fair bit up now i thinka bout it. fuuck. i hope i can scrape an A still :?
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 02:50:12 pm
Quote from: "melanie.dee"
i had no idea about the electrode so i was like um er when all else fails, plaaatinumm!

i really think a stuffed a fair bit up now i thinka bout it. fuuck. i hope i can scrape an A still :?


Haha. Good policy.

I guess I'll post up my MC answers. They don't differ significantly from spirited's, and I am under the impression they are correct (so says a teacher anyway. Now...)

BDCDBDADADACBBACCDBC

For those that struggle with Chem, D was the most frequent response. A was the least.
Title: Exam 2 Thoughts
Post by: Ahmad on November 15, 2007, 03:20:06 pm
Hey guys. Because I did so very little study for chemistry, I was quite happy with my performance. I've checked and discussed quite a lot and I know I lost atleast 1 mark (silly mistake hehe). 45+ here I come!

For that MC about energy and stuff I put C.

Yeah, and I put platinum for that question as well. Although I think they'll also accept carbon/graphite, but I could be wrong.
Title: Exam 2 Thoughts
Post by: Jasper on November 15, 2007, 03:39:23 pm
Quote from: "kingmar"
With carbon, it will depend. I can't remember the question anymore.
Carbon should be fine, it's relatively inert. Platinum is the ultimate electrode - thus the possibility of it reacting like carbon does in the Hall-Heroult is nil.


How about graphite?  :?
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 03:46:06 pm
err lol graphite = carbon.
Title: Exam 2 Thoughts
Post by: AkirA on November 15, 2007, 04:05:11 pm
Quote from: "bonghead"
Quote from: "golids"
getting into any health case is a bitch, stupid UMAT would have fucked up heaps of people including me


Dont even start me on the Umat. that peice of shit is the biggest load of inane crap compiled into one pointless test. It serves no purpose other than destroying the potential of perfectly capable students


I've gone through the exam thoroughly and as far as my knowledge goes along with the answers here, i haven't lost a mark yet. Hopefully I'll get 45+?

In regards to the UMAT rant there, i take into consideration that you must be angry over your mark and therefore biased over it (Would you really say the same thing about it if you got really high?) but it's ridiculous to say it serves no purpose - it certainly does, especially Section 2 in my opinion.

In any case, Chemistry is over! Don't delve too deeply into something you can't change - if you've finished, congratulations but if you've got Spesh tomorrow (and UMEP) then concentrate!
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 04:22:22 pm
People are entitled to bullshit the UMAT, just as I can bullshit methods.

I think methods is useless in real life - I want Commerce, I'll go do it, then one day at my job, while poring over balance sheets, my manager will say: "Hey! Can you anti-derive this for me?" or "Hey! Can you work out for x cos(x)^2 = 1 + sin(x)?"

It just isn't happening.
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 04:34:36 pm
Quote from: "kingmar"
People are entitled to bullshit the UMAT, just as I can bullshit methods.

I think methods is useless in real life - I want Commerce, I'll go do it, then one day at my job, while poring over balance sheets, my manager will say: "Hey! Can you anti-derive this for me?" or "Hey! Can you work out for x cos(x)^2 = 1 + sin(x)?"

It just isn't happening.


One day your CEO could ask you to analyse some trends in some data that he paid some guy to collect, and you'd be surprised how much maths you might have to do.
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 04:38:41 pm
Quote from: "coblin"
Quote from: "kingmar"
People are entitled to bullshit the UMAT, just as I can bullshit methods.

I think methods is useless in real life - I want Commerce, I'll go do it, then one day at my job, while poring over balance sheets, my manager will say: "Hey! Can you anti-derive this for me?" or "Hey! Can you work out for x cos(x)^2 = 1 + sin(x)?"

It just isn't happening.


One day your CEO could ask you to analyse some trends in some data that he paid some guy to collect, and you'd be surprised how much maths you might have to do.


CEO ask me to do stuff?

Willingly! If the CEO asked me to do stuff I'd be paid HUNDREDS OF THOUSANDS.

I'd try and anti-derive a logarithm for $100,000!!! (i can already do naturals.)
Title: Exam 2 Thoughts
Post by: AkirA on November 15, 2007, 04:58:39 pm
Quote from: "kingmar"
Quote from: "coblin"
Quote from: "kingmar"
People are entitled to bullshit the UMAT, just as I can bullshit methods.

I think methods is useless in real life - I want Commerce, I'll go do it, then one day at my job, while poring over balance sheets, my manager will say: "Hey! Can you anti-derive this for me?" or "Hey! Can you work out for x cos(x)^2 = 1 + sin(x)?"

It just isn't happening.


One day your CEO could ask you to analyse some trends in some data that he paid some guy to collect, and you'd be surprised how much maths you might have to do.


CEO ask me to do stuff?

Willingly! If the CEO asked me to do stuff I'd be paid HUNDREDS OF THOUSANDS.

I'd try and anti-derive a logarithm for $100,000!!! (i can already do naturals.)


You've completely missed the point of maths in the real world and demonstrated your lack of understanding and ignorance in how mathematics is vital to everyday life. How about you try doing the Commerce Degree and then come back and tell us how much maths you actually used during that degree rather than speculating rather ridiculously  about how 'useless' maths is.

And no, methods isn't just about derivatives and logarithms.
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 05:06:41 pm
Quote from: "AkirA"

You've completely missed the point of maths in the real world and demonstrated your lack of understanding and ignorance in how mathematics is vital to everyday life. How about you try doing the Commerce Degree and then come back and tell us how much maths you actually used during that degree rather than speculating rather ridiculously  about how 'useless' maths is.

And no, methods isn't just about derivatives and logarithms.


But the point of maths in the real world is further and spesh, not methods.
Methods simply puts a plank over the two and attempts to poorly connect the two. I never bagged maths. I bagged methods. There is a difference.

The funny thing is, even if methods wasn't a prerequisite, I'd still have done it as a subject. Why? Enjoyment.

How about you read my posts properly, instead of jumping to conclusions. I repeat, I did not put down maths, I put down methods. There is a difference, and a differing relevance to real life.

I have experienced methods teachers to back up my opinion on its uselessness.
Title: Exam 2 Thoughts
Post by: Ahmad on November 15, 2007, 05:15:36 pm
People calm down eh.  8)
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 05:20:22 pm
Agreed, and passed.

So Chem thoughts? We're waiting on coblin to enlighten us further. I'm interested to see his working out for some of the multi-choice... since I "educated guessed" a bunch.
Title: Exam 2 Thoughts
Post by: Ahmad on November 15, 2007, 05:21:47 pm
He's working on them as we speak, almost finish I think.
Title: Exam 2 Thoughts
Post by: melanie.dee on November 15, 2007, 06:04:27 pm
omg fuck i just read coblins answer and tehrse one question i read wrong. the fusion one or fission i cant remember. but it said this the reaction is endothermic and i totally read it as exothermic because i 100% know what and i just compeltely read itwrong and then just stuck it in my mind as that. FUUCK. i think i scrwed up a lot of multi choice :? like a LOT.

fuck i hope i scrape an A or ill cry. would AAA get you a 36? or higher? or lower?
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 06:06:50 pm
Quote from: "melanie.dee"
omg fuck i just read coblins answer and tehrse one question i read wrong. the fusion one or fission i cant remember. but it said this the reaction is endothermic and i totally read it as exothermic because i 100% know what and i just compeltely read itwrong and then just stuck it in my mind as that. FUUCK. i think i scrwed up a lot of multi choice :? like a LOT.

fuck i hope i scrape an A or ill cry. would AAA get you a 36? or higher? or lower?


:(

I feel bad. Gonna start working on Section B soon. I wouldn't take a look until you're done with Specialist tomorrow. You've probably done alright though, don't worry :)
Title: Exam 2 Thoughts
Post by: melanie.dee on November 15, 2007, 06:12:09 pm
ahah gosh no spesh for me, you've mistake me for one of the smart ones. im not haha :D

gaar im annoyed about that question though. stuuupid shit like that. anyway i think i might not look at the rest, i still have french exam, and plus theres not much i can do now anyway. good work doing the solutions though. would be highly appreciated if i was getting them right ahha ah dear
Title: Exam 2 Thoughts
Post by: Bombers on November 15, 2007, 06:13:10 pm
Quote from: "melanie.dee"
omg fuck i just read coblins answer and tehrse one question i read wrong. the fusion one or fission i cant remember. but it said this the reaction is endothermic and i totally read it as exothermic because i 100% know what and i just compeltely read itwrong and then just stuck it in my mind as that. FUUCK. i think i scrwed up a lot of multi choice :? like a LOT.

fuck i hope i scrape an A or ill cry. would AAA get you a 36? or higher? or lower?



Fuck!!! i misread question one of mc i thought they asked for highest for some reason. I lost heaps of marks in mc already, i justed wanted an A but looks like thats down the drain already. All i wanted was a 36-37 for chem. What study score do u guys think i will get with score of B+ (A-A+) B+. I dont think i will get an A anymore. I will cry soon. I lost coulpe of marks in short answers aswell. Especially that stupid significant figures( i didnt put any sig figs) :x
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 06:15:22 pm
Quote from: "melanie.dee"
ahah gosh no spesh for me, you've mistake me for one of the smart ones. im not haha :D

gaar im annoyed about that question though. stuuupid shit like that. anyway i think i might not look at the rest, i still have french exam, and plus theres not much i can do now anyway. good work doing the solutions though. would be highly appreciated if i was getting them right ahha ah dear


Ooh oops! You're the economics chick, haha. Yeah. I'm sorry.

I give the choice for people who want to look at their answers. If it'll really affect you, it's best not to, even though I know it's really tempting. Ultimately, that choice comes from the individual though :)
Title: Exam 2 Thoughts
Post by: kingmar on November 15, 2007, 06:31:02 pm
Hey coblin, how was your Chem exam by the way :?:
Title: Exam 2 Thoughts
Post by: Collin Li on November 15, 2007, 06:33:19 pm
Quote from: "kingmar"
Hey coblin, how was your Chem exam by the way:?:


It was pretty good, probably will get H1. Ahh.. I haven't started Section B yet... I'm getting there, FSN has way too many posts to read.
Title: Exam 2 Thoughts
Post by: huangers on November 16, 2007, 12:21:01 am
hmmm well it seems not many people found this chemistry exam hard.. well i  actually thought last years exam was much easier. i only finished with about 5 minutes to spare for this one.

although i was sick all morning so it didnt help feeling crap throughout the exam.. to me it was tough, i also didnt enjoy unit 4 chem and hated food chem oh so much :P

but anyways i just found that i dropped a lot of stupid marks and i probably wont improve on the A i got for the mid year unfortunately  :(

it'll probably be my 6th subject now.. sad considering i really liked chem at the start of the year.
Title: Exam 2 Thoughts
Post by: ninwa on November 16, 2007, 12:24:35 am
Quote from: "huangers"
i only finished with about 5 minutes to spare for this one.

although i was sick all morning so it didnt help feeling crap throughout the exam.. to me it was tough, i also didnt enjoy unit 4 chem and hated food chem oh so much :P

but anyways i just found that i dropped a lot of stupid marks


haha that's like exactly the same situation as me :P except that chem may well be my 7th or 8th subject now :(
Title: Exam 2 Thoughts
Post by: huangers on November 16, 2007, 12:29:37 am
haha 7th or 8th? man that s a lot of subjects..

oh anyone else do physics the day before? compared to this chemistry exam i can say it was about 8 times easier :P why 8 times you ask? because i had 8 times the amount of time left after i'd finished physics than chem. haha damn i suck at unit 4 chem
Title: Exam 2 Thoughts
Post by: DrowNz on November 16, 2007, 12:35:11 am
physics sucks. they stole emission spectrum from us :(
Title: Exam 2 Thoughts
Post by: squance on November 16, 2007, 09:49:23 am
Quote from: "huangers"
hmmm well it seems not many people found this chemistry exam hard.. well i  actually thought last years exam was much easier. i only finished with about 5 minutes to spare for this one.

.


I only had 30 seconds to spare!!! A bee was flying around me during the whole exam and it really bugged me!, distracting me from the exam!
Title: Exam 2 Thoughts
Post by: kingmar on November 16, 2007, 02:26:56 pm
Quote from: "squance"
Quote from: "huangers"
hmmm well it seems not many people found this chemistry exam hard.. well i  actually thought last years exam was much easier. i only finished with about 5 minutes to spare for this one.

.


I only had 30 seconds to spare!!! A bee was flying around me during the whole exam and it really bugged me!, distracting me from the exam!


Oh no! Quick, tell the VCE co-ordinator! Get Special Consideration!!! :D

No seriously, tell them. If supervisiors can back that up, VCAA take consideration into your score.
Title: Exam 2 Thoughts
Post by: melanie.dee on November 16, 2007, 03:26:59 pm
i had sun shining in my eyes the whole time. special consideration? ahaha im joking. but it was annoying, although my fault cos they asked if i wanted to move, but i cbfd getting up and wasting time