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Advanced Higher Chemistry 2012 Thread

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Reply 100
what did everyone get for the % yeild mass question?
13e?

I got 3.358g i think
Original post by Babb_zz
Right im scanning the paper, See how nice i am :smile: btw ignore the pencil marking on the paper, those are my multiple choice answers, probs got them wrong *rolls eyes*


but again, SAKJLFBSUDFGOBSDB to that paper, did anyone get that ion question in the multiple choice, what block was it in? :smile:


d block I said. But on reflection, cerium fit the bill for number of electrons, actually... :tongue:
If it has 55 electrons in its 3+ form, its elemental form has 58 electrons and thus atomic number 58. Cerium. So that's the f-block. T_T
Original post by AeroLB
We were to draw a graph? :O I drew the molecule :smile: whoopsie.


At least you answered the question, I've just realised I missed out that whole page! WHOOPSIE :rolleyes:
Reply 103
How about the complex ion [Cu(CN)2]-?

I think I called it dicyanocuprrate (II), and am paranoid that i will be penalised for misspelling cuprate! I'm notoriously bad at naming.
Original post by KeeranL
what did everyone get for the % yeild mass question?
13e?

I got 3.358g i think


I Got that! :smile:
Reply 105
Original post by AeroLB
How about the complex ion [Cu(CN)2]-?

I think I called it dicyanocuprrate (II), and am paranoid that i will be penalised for misspelling cuprate! I'm notoriously bad at naming.


i named it dicyanocupratte(I)
Original post by AeroLB
How about the complex ion [Cu(CN)2]-?

I think I called it dicyanocuprrate (II), and am paranoid that i will be penalised for misspelling cuprate! I'm notoriously bad at naming.


Isnt the oxidation state of copper 1?
Reply 107
Original post by jordan0141
Isnt the oxidation state of copper 1?


haha yes :biggrin:

At least I won't have to worry about if it was right or not haha One of the many silly mistakes made today...
Reply 108
Original post by jordan0141
Isnt the oxidation state of copper 1?


i said 1
Reply 109
I really want to be able to mark my multi choice answers
Reply 110
for question 12a i put:
S2C8H14O2
but i origionally had
S2C9H14O2

im worried now:frown: what did everyone else put?
My Multiple choice answers were:
ADDBB ACCAB CDDBA AACCD DCBDB ACDAB AABDB BCADD
Got mixed up with the prefix when it's dentate and wrote bicyanocupprate(I)

whoops :tongue:
Original post by KeeranL
for question 12a i put:
S2C8H14O2
but i origionally had
S2C9H14O2

im worried now:frown: what did everyone else put?

so did I
[QUOTE="adam_johnson;37541840"]
Original post by KeeranL
for question 12a i put:
S2C8H14O2
but i origionally had
S2C9H14O2

im worried now:frown: what did everyone else put?

so did I


I wrote it with a COOH at the end I think so and I remember having 13 H's and 2 S's (think I got 8 C's as well). So yeah, same as you both I think. Although, would they accept it as S2C8H13COOH? :redface:
Reply 115
[QUOTE="why-hello-there;37541946"]
Original post by adam_johnson


I wrote it with a COOH at the end I think so and I remember having 13 H's and 2 S's (think I got 8 C's as well). So yeah, same as you both I think. Although, would they accept it as S2C8H13COOH? :redface:


Yeah, this is correct, of course they should accept it, as it clearly shows the carboxyl group.
Original post by adam_johnson
My Multiple choice answers were:
ADDBB ACCAB CDDBA AACCD DCBDB ACDAB AABDB BCADD

I hope you're right, I got 26 in that case (if not a couple more which I forgot.)
My multiple choice answers. Some of which I already know are wrong.
ACCAB BDCAA CDDBA AACCD
CCDDB DCDBB ABBDB CDACD

:smile: X
For the ligand complex, I wrote that it was Dicyanocuprate (I) (correct spelling, not sure if correct answer).


As for that Proton NMR question and the question referring to Tetrahydrofuran...no idea.

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