Chemistry Predictions/Thoughts (1 Viewer)

[tywebb]

Has there been no progress on getting the full paper. Everyday i dont see it, the more I die inside

Here is another version with all the questions, but it is out of order

EDIT: see post #439 for reordered version

 

[Interdice]

Here is another version with all the questions, but it is out of order

Outta curiosity. Where did you get the paper the first time? Cool if you don't want to answer

 

[lolcti]

Outta curiosity. Where did you get the paper the first time? Cool if you don't want to answer

Interdice does chem?! I thought you just talked ab depressing shit all day

 

[Interdice]

Interdice does chem?! I thought you just talked ab depressing shit all day

The only thing bigger than my Asian fetish is my hate for Chemistry

 

[Interdice]

Also for Q16. The answer is the compound with the bigger ksp. Right?

 

[ghreysantomy]

Also for Q16. The answer is the compound with the bigger ksp. Right?

Q16 was (B)
=> AgI precipitates out first as it has a SMALLER Ksp and so less of it needs to be added into a given volume before it begins to precipitate, compared to AgCl, whose Ksp is larger. The solutions, by PEAK, were posted on this thread a few days ago.

 

[Interdice]

Q16 was (B)
=> AgI precipitates out first as it has a SMALLER Ksp and so less of it needs to be added into a given volume before it begins to precipitate, compared to AgCl, whose Ksp is larger. The solutions, by PEAK, were posted on this thread a few days ago.

Thanks

 

[tywebb]

Here is another version with all the questions, but it is out of order

Here is a better version with questions in proper order. It is also unredacted unlike nesa's version.

 

[tywebb]

now nesa put it up: https://educationstandards.nsw.edu....exam-papers/2023/chemistry-2023-hsc-exam-pack

albeit with q2, 16, 18 partially redacted

my version is better!

 

[sneak11]

if for the 9 mark spectroscopy question i had put carboxyl accidentally instead of carbonyl but put (ketone) in brackets, is there a possibility i might still get that mark?

 

[SadCeliac]

Here is a better version with questions in proper order. It is also unredacted unlike nesa's version.

THANKS TYWEBB

 

[Luukas.2]

if for the 9 mark spectroscopy question i had put carboxyl accidentally instead of carbonyl but put (ketone) in brackets, is there a possibility i might still get that mark?

If you've drawn a ketone, written ketone, and spoken of carbonyl (correctly) in the justification that accompanies the table, I think there is a far argument to be made that you should be credited despite a minor mistake. However, if you've made the same mistake in the justification or if your answer (overall) comes across as reflecting uncertainty or as being mistaken, being penalised is the fair outcome.

Having said that, if the marking scheme treats the table and structures specifically and separately, then you could be out of luck.

Note, also, that giving two answers is generally discouraged. Suppose someone wrote carbonyl (aldehyde) and then drew a ketone, for example... the functional group is correct but the additional (and unrequested) compound class is incorrect. Should that be ignored? What if the answer said "aldehyde (carbonyl)," so that the second answer is the correct one?

In your case, would you credit the answer ketone alone, without the proper name of a functional group provided? I would argue against that being credited, but an earlier question incorrectly portrayed aldehydes and ketones as having different functional groups, so taking a hard line on functional groups vs. compound classes seems harsh.

So... is there a possibility of you getting the mark? Yes. Is there a possibility of you doing anything to influence the decision now? None at all. My advice is: move on.

 

[tywebb]

matrix solutions: https://www.matrix.edu.au/2023-hsc-chemistry-exam-paper-solutions/

 

[tywebb]

mg from nesa is up: https://educationstandards.nsw.edu....-41d6a29e-e3b8-428f-a5dc-3cdcbe3b58db-oLRxQ8N

 

[Interdice]

Do u get marks for half equations?

For example Q24, I wrote
HC2O4- + H+-> H2C2O4

 

[Unovan]

bruh i forgot all the answers that i wrote

 

[Interdice]

bruh i forgot all the answers that i wrote

Really? I remember them all except for english

 

[nsw..wollongong]

Really? I remember them all except for english

English is stuck in my head for how bad I stuffed up the mod c section