AQA CHEM4 - 13th June 2012
Chemistry exam discussion - share revision tips in preparation for GCSE, A Level and other chemistry exams and discuss how they went afterwards.
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Re: AQA CHEM4 - 13th June 2012So true! It's just this organic synthesis I am getting puzzled on. Just wondering.if anyone knows a site where I can some random synthesis type questions(Original post by PatrickD)
I really need to start revising for this, along with CHEM5, soon. We've got a CHEM5 mock soon so I'll probably focus on that for a bit but then I need to knuckle down with all the organic/carbonyl chemistry. We've finished learning CHEM5 and have done the second ISA so I have no excuses now!
As for specific topics, I really like Acids, bases and buffers, Kinetics, and Equilibria (as I can do the calculations without having to remember too much) but all the learning in Compounds containing the carbonyl group, Aromatic chemistry, and Amines is so tedious!
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Re: AQA CHEM4 - 13th June 2012Not sure if you already know about a-levelchemistry.co.uk? It has past exam questions and exercises for all the topics in separate links.(Original post by Doctor.)
So true! It's just this organic synthesis I am getting puzzled on. Just wondering.if anyone knows a site where I can some random synthesis type questions
Last edited by PatrickD; 25-03-2012 at 22:16. -
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Re: AQA CHEM4 - 13th June 2012my teacher printed them all off lol(Original post by PatrickD)
Not sure if you already know about a-levelchemistry.co.uk? It has past exam questions and exercises for all the topics in separate links.
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I have gone through most of them, think I should just keep going over the organic questions then Thanks
I think my main problem area is Synthesis and NMR
Let me know how you get on
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Re: AQA CHEM4 - 13th June 2012Hmmm- Is that the only hard part, remembering everything? If the paper is just memory test then I think I'll be alrite. Infact, at this moment I think chem 4 is the more annoying one(Original post by Doctor.)
Really depends on what your strengths are! CHEM5 is a lot of memory and some advance concepts. Nothing too major though DON'T WORRY
cos it contains all the number crunching parts of A2 chemistry, which means I might lose lots of silly marks in the paper even if I understand the topic completely. Agree?
chem 4 organic is just wierd
Last edited by nmudz_009; 26-03-2012 at 15:53. -
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Re: AQA CHEM4 - 13th June 2012There Is sill some number crunching for CHEM5 but not too bad! There are still some concepts to get your head round in Chem5 though so watch out!(Original post by nmudz_009)
Hmmm- Is that the only hard part, remembering everything? If the paper is just memory test then I think I'll be alrite. Infact, at this moment I think chem 4 is the more annoying one cos it contains all the number crunching parts of A2 chemistry, which means I might lose lots of silly marks in the paper even if I understand the topic completely. Agree?
chem 4 organic is just wierd
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Re: AQA CHEM4 - 13th June 2012(Original post by biofreak)
similar to me, I'm doing BIOL1, BIOL4, BIOL5, CHEM4, CHEM5 :'(
I can't complain any more then
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Re: AQA CHEM4 - 13th June 2012Right guys, so I have been trying to do this Organic Synthesis but I feel like I am not getting anywhere. How do you all cope with it, really need some techniques. I cant do the whole 'just stare at the compound and an idea will hit me'-thing
Anything helpful will be much apprecited, and +reped
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Re: AQA CHEM4 - 13th June 2012I usually try to start off with a really simple compound, e.g. an alkane.(Original post by Doctor.)
Right guys, so I have been trying to do this Organic Synthesis but I feel like I am not getting anywhere. How do you all cope with it, really need some techniques. I cant do the whole 'just stare at the compound and an idea will hit me'-thing
Anything helpful will be much apprecited, and +reped
e.g. Butane ---> 2-Hydroxypentanenitrile:
Butane --> 1-Chlorobutane --> Butan-1-ol --> Butanal --> 2-Hydroxypentanenitrile -
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Re: AQA CHEM4 - 13th June 2012But how dya realise what you should put next?(Original post by thegodofgod)
I usually try to start off with a really simple compound, e.g. an alkane.
e.g. Butane ---> 2-Hydroxypentanenitrile:
Butane --> 1-Chlorobutane --> Butan-1-ol --> Butanal --> 2-Hydroxypentanenitrile
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Re: AQA CHEM4 - 13th June 2012Sorry?
Do you mean, how do you work out what the intermediate compounds are?
I usually work my way backwards - it works easier for me than going forwards
If that fails...
Spoiler:ShowTrial and Error -
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Re: AQA CHEM4 - 13th June 2012aha cool I will give it a go(Original post by thegodofgod)
Sorry?
Do you mean, how do you work out what the intermediate compounds are?
I usually work my way backwards - it works easier for me than going forwards
If that fails...
Spoiler:ShowTrial and Error
. Just going through all the sections now 
...So much content
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Re: AQA CHEM4 - 13th June 2012Stressing so hard! I DONT understand anyhthing! I cant remeber anything and i can just about id if its a ketone, aldehyde or an acid. Need an A, dont know what to do!
Last edited by sanaindaclub; 28-03-2012 at 13:00. -
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Re: AQA CHEM4 - 13th June 2012(Original post by sanaindaclub)
Stressing so hard! I DONT understand anyhthing! I cant remeber anything and i can just about id if its a ketone, aldehyde or an acid. Need an A, dont know what to do!
Oh god, same!
I'm like.... 'err thats an ester!!' .. but that's pretty much it. FML.
Need and A for my course so have to get that, or I'll shoot myself XD -
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Re: AQA CHEM4 - 13th June 2012Only thing I can say: BEAST CHEM5 (I am struggling on this unit too(Original post by Bright.Inspiration.)
Oh god, same!
I'm like.... 'err thats an ester!!' .. but that's pretty much it. FML.
Need and A for my course so have to get that, or I'll shoot myself XD)
haha I can't do this at all(Original post by Bright.Inspiration.)
I hate this unit so much.
Anyone have any useful websites/questions on organic synthesiss + how to practice all the maths stuff (i.e. acids + bases, equilibrium, rates) ? Organic Synthesis has made me cry...twice 
This unit is too much(Original post by sanaindaclub)
Stressing so hard! I DONT understand anyhthing! I cant remeber anything and i can just about id if its a ketone, aldehyde or an acid. Need an A, dont know what to do!
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Re: AQA CHEM4 - 13th June 2012See attachments(Original post by masterhr1)
Does anybody have the Jan 2012 CHEM 4 paper?
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Re: AQA CHEM4 - 13th June 2012(Original post by Doctor.)
Only thing I can say: BEAST CHEM5 (I am struggling on this unit too)
haha I can't do this at all Organic Synthesis has made me cry...twice
This unit is too much
Org Synth is so cool!
Best bit of Chem IMHO
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. Just going through all the sections now 
