AQA A2 CHEM4 Revision Thread (Wednesday 27th January AM) Watch

chernij
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So, who else is doing CHEM4 in January? Any tips for revising/understanding different parts?

Some links:
Specification
Specimen Question Paper
Specimen Mark Scheme
Periodic Table and Data Sheet
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felt_monkey
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w00p w00p CHEM4! Although I'm not feeling good about it. Deffo subscribing to this thread
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Smeh
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Dreading this exam.
So many damn mechanisms to learn!
Has anyone got the book by Nigel and Angela Saunders?
So many mistakes!
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Malsy
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(Original post by Smeh)
Dreading this exam.
So many damn mechanisms to learn!
Has anyone got the book by Nigel and Angela Saunders?
So many mistakes!

OMG yes! It's like a game of spot the mistake in our class. :rolleyes:
:p:
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jeremybag
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I hate the spectroscopy bit... im fine with all the mechanisms/calculations!
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Ultimate_Geek
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There seems like a huge amount to learn and it's all intensely complicated.
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*MJ*
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(Original post by Malsy)
OMG yes! It's like a game of spot the mistake in our class. :rolleyes:
:p:
Same. :sigh:

OP, don't get me started on CHEM4...

:coma: :coma: :coma:

Mechanisms. :love:

It's almost as good as Malsy and that's the biggest compliment Chemistry can recieve. :sexface:

:dance:
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Hippysnake
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I am so failing this exam.

Why must I be so damn lazy?
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*MJ*
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(Original post by jeremybag)
I hate the spectroscopy bit... im fine with all the mechanisms/calculations!
(Original post by Ultimate_geek)
There seems like a huge amount to learn and it's all intensely complicated.
It is frightening at first, yes.

You just have to get used to it and practice.

I can't emphasise the word practice enough!

The reason I say that is because this module and Chemistry in general is very easy to make stupid mistakes and lose silly marks. :sigh:

More practice reduces this.

Good luck to you all and Hippysnake, get off yo' backside and start working boy. :hmmm:
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Smeh
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I'm so proud of myself.
Doing some chemistry revision now
Been putting it off for a month but I saw this thread and the Jan exam thread and it scared me into action lol.
Quick question can anyone tell me the reagent with which bromoethane is transfomrmed into propanitrile?
I suck at remembering this sort of stuff...and the reaction conditions crap.
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doctobe
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I am also doing CHEM 4 AQA just wanted to ask if we have to know everything from last year as part of the synoptic elements.
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*MJ*
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(Original post by Smeh)
I'm so proud of myself.
Doing some chemistry revision now
Been putting it off for a month but I saw this thread and the Jan exam thread and it scared me into action lol.
Quick question can anyone tell me the reagent with which bromoethane is transfomrmed into propanitrile?
I suck at remembering this sort of stuff...and the reaction conditions crap.
React with KCN in aqueous alcoholic conditions.

Edit: Allow it to reflux too and :CN- is the nucleophile. :dance:
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doctobe
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answer is hydrogen cyanide although KCN is more often used as it does not evolve HCL gas which is a respiratory irratant
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*MJ*
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(Original post by doctobe)
I am also doing CHEM 4 AQA just wanted to ask if we have to know everything from last year as part of the synoptic elements.
Learn all the organic stuff, yes.

In terms of the other modules...

Atom economy

Percentage yield

Volumetric calculations

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doctobe
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Why aqeous alcoholic - whats the significance
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*MJ*
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(Original post by doctobe)
answer is hydrogen cyanide although KCN is more often used as it does not evolve HCL gas which is a respiratory irratant
HCN = dangerous :no:

KCN is used and in this case KBr is formed but yes generally...KX where X is a haloalkane.

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doctobe
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But do i have to learn alkaline earth metals, fractional distillation, Shapes of simple molecules, redox,
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*MJ*
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(Original post by doctobe)
Why aqeous alcoholic - whats the significance
Alcoholic is just the general conditions...aqueous because the reaction will involve ions.

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*MJ*
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(Original post by doctobe)
Why aqeous alcoholic - whats the significance
Alcoholic is just the general conditions...aqueous because the reaction will involve ions.

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*MJ*
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(Original post by doctobe)
Why aqeous alcoholic - whats the significance
Alcoholic is just the general conditions...aqueous because the reaction will involve ions.

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