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Author Topic: m done with chem paper22...  (Read 3399 times)

Offline superduper2009

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Re: m done with chem paper22...
« Reply #15 on: May 31, 2010, 11:38:52 am »
Guys the paper was easier than most past pprz... but organic part was a bit tricky... i reckon i did fine... although last question puzzled me...
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Offline studz

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Re: m done with chem paper22...
« Reply #16 on: May 31, 2010, 11:58:40 am »
hey this chemistry paper 22, which one is this..? CIE, AS level?
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could've would've should've....BUT DIDN'T!

Offline highly_ambitious

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Re: m done with chem paper22...
« Reply #17 on: May 31, 2010, 01:09:54 pm »
hey, nice profile pic...is dat dhoni?
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Offline AndrewCedric

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Re: m done with chem paper22...
« Reply #18 on: May 31, 2010, 01:22:07 pm »
Isnt is Kurt Cobain??
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Offline aldehyde1612

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Re: m done with chem paper22...
« Reply #19 on: May 31, 2010, 01:48:09 pm »
Quote from: highly_ambitious on May 31, 2010, 01:09:54 pm
hey, nice profile pic...is dat dhoni?

lol.
pretty sure its Kurt cobain.  <3

paper was alriite. i actually did not get the first question.  :(
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.We know a little about a lot of things; Just enough to make us dangerous.

Offline thnx-to-allah

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Re: m done with chem paper22...
« Reply #20 on: May 31, 2010, 02:08:06 pm »
Quote from: Nera_egypt on May 31, 2010, 09:24:51 am
Thanks 2 God I did very well   :) I am satisfied. I hope paper 1 is the same

but isnt an 80 % an A , 48 out of 60 is 80% so i think that will be the A mark
Or not...?????
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Offline studz

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Re: m done with chem paper22...
« Reply #21 on: May 31, 2010, 02:27:46 pm »
Quote from: highly_ambitious on May 31, 2010, 01:09:54 pm
hey, nice profile pic...is dat dhoni?

lmao no its not dhoni..
yeap kurt cobain..from nirvana
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could've would've should've....BUT DIDN'T!

Offline 247sports

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Re: m done with chem paper22...
« Reply #22 on: May 31, 2010, 06:59:45 pm »
the ppr was better than i expectd it to be
i bet all of us expectd it to b very hard
the only thing the threshold will b reeeeelllllliiiii very high
but lets hope for the best :)
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Offline aldehyde1612

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Re: m done with chem paper22...
« Reply #23 on: June 01, 2010, 09:27:13 am »
is 24hours up yet???

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.We know a little about a lot of things; Just enough to make us dangerous.

Offline IGCSE nightmare

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Re: m done with chem paper22...
« Reply #24 on: June 01, 2010, 10:14:39 am »
YES!
Please discuss
What is the black solid?
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Offline Chingoo

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Re: m done with chem paper22...
« Reply #25 on: June 01, 2010, 10:23:36 am »
Quote from: IGCSE nightmare on June 01, 2010, 10:14:39 am
YES!
Please discuss
What is the black solid?

It is carbon from reaction of H2SO4 and Propan-1-ol.
http://www.chemguide.co.uk/organicprops/alcohols/dehydration.html
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All that is on earth will perish:
But will abide (forever) the Face of thy Lord--full of Majesty, Bounty & Honor.
Then which of the favors of your Lord will ye deny?

Qura'n, Chapter 55: The Beneficent, Verses 26-28

Offline aldehyde1612

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Re: m done with chem paper22...
« Reply #26 on: June 01, 2010, 10:26:34 am »
darn...  :-\ i dont think i got that one.

what about the rest of that question... anyone remember?? something about why you remove it from water...???
oh. and why the thing turns black??
« Last Edit: June 01, 2010, 10:30:09 am by aldehyde1612 »
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Offline IGCSE nightmare

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Re: m done with chem paper22...
« Reply #27 on: June 01, 2010, 10:30:59 am »
Quote from: Chingoo on June 01, 2010, 10:23:36 am
It is carbon from reaction of H2SO4 and Propan-1-ol.
http://www.chemguide.co.uk/organicprops/alcohols/dehydration.html

Nid404 said that it was CuO and she was quite sure about that!
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Offline Chingoo

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Re: m done with chem paper22...
« Reply #28 on: June 01, 2010, 10:40:46 am »
Quote from: IGCSE nightmare on June 01, 2010, 10:30:59 am
Nid404 said that it was CuO and she was quite sure about that!

Okay. =P Do you think it matters now? No one can change our answers now. Just work hard for P1 instead. =D
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All that is on earth will perish:
But will abide (forever) the Face of thy Lord--full of Majesty, Bounty & Honor.
Then which of the favors of your Lord will ye deny?

Qura'n, Chapter 55: The Beneficent, Verses 26-28

Offline XaM!!

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Re: m done with chem paper22...
« Reply #29 on: June 01, 2010, 10:43:54 am »
I also wote Copper oxide...
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Dnt walk As iF u RulE da WorLd..... Walk As if U dOnT CarE wHO RuLzz It.......


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