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Reply 1
So what is everyone doing in transtion week (class)?
Original post by propagation
So what is everyone doing in transtion week (class)?


Is it just my college or have you started A2 also? :P


"Be the change you wish to see in the world."
Reply 3
Original post by The Lawful T.J
Is it just my college or have you started A2 also? :P


"Be the change you wish to see in the world."

Yeah we have started with Kinetics and Equilibrium maths stuff on rates.
Reply 4
We've done some practicals for reducing ketones to alcohols and the theory behind it, that's it so far
Reply 5
Original post by IgorYakov
We've done some practicals for reducing ketones to alcohols and the theory behind it, that's it so far

I haven't done that yet and I don't think it's planned, I know I am making asprin and soap when I get onto the stuff to do with the benzene ring :smile:.

Any chance you can share the theory on this reaction please?
Reply 6
Original post by propagation
I haven't done that yet and I don't think it's planned, I know I am making asprin and soap when I get onto the stuff to do with the benzene ring :smile:.

Any chance you can share the theory on this reaction please?



Sorry I meant the theory behind the practical, we've not gone into the detail yet but all I know is it's nucleophilic addition :biggrin:
We've done kinetics and nucleophilic addition too :smile:


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Reply 8
I thought I read the thread title wrong for a minute! :lol:

Early bird catches the worm, as they say. :tongue:

My college will be starting Unit 4 Kinetics shortly.
When is everyone getting their textbooks? My college will issue us in Sept.
Reply 9
Hi can anyone help me on question 8b: http://filestore.aqa.org.uk/subjects/AQA-CHEM5-QP-JUN12.PDF

How do i make the half equations. I thought O2 normally gets reduced OH- i dont get where the H20 comes from:'(
Reply 10
Original post by IgorYakov
Sorry I meant the theory behind the practical, we've not gone into the detail yet but all I know is it's nucleophilic addition :biggrin:

:biggrin: more mechanisms=free marks :wink:

Original post by The.Joker
I thought I read the thread title wrong for a minute! :lol:

Early bird catches the worm, as they say. :tongue:

My college will be starting Unit 4 Kinetics shortly.
When is everyone getting their textbooks? My college will issue us in Sept.

I bought mine today :L
Reply 11
Original post by edward28
Hi can anyone help me on question 8b: http://filestore.aqa.org.uk/subjects/AQA-CHEM5-QP-JUN12.PDF

How do i make the half equations. I thought O2 normally gets reduced OH- i dont get where the H20 comes from:'(

wrong thread dude this is Unit 4
Reply 12
Original post by propagation
So what is everyone doing in transtion week (class)?


Chapter 11 Mass Spectrometry ,Infared Spectroscopy etc and Chapter 4 Nomenclature and Isomerism


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Reply 13
Original post by chelley2
Chapter 11 Mass Spectrometry ,Infared Spectroscopy etc and Chapter 4 Nomenclature and Isomerism


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Seems like every centre is doing something different, would you like to exchange class notes after the 3 weeks?
Wow, this is really early :tongue: haha, but yeah, CHEM4 is looking great so far!
We're doing Kinetics & Nucleophilic tooooooo!

Ethyl ethanoate = pear drop flavouring.
Too cool.


"Be the change you wish to see in the world."
Right, I know it's a bit soon.. But could someone explain how to find the moles in question 1a of the June '12 Unit 4, because it's got me stumped. And it's probably the easiest question ever :P
Thanks in advance!


"Be the change you wish to see in the world."
Reply 17
Original post by mynameisntbobk
Wow, this is really early :tongue: haha, but yeah, CHEM4 is looking great so far!


Just a bit (early) :wink:
Reply 18
Original post by The Lawful T.J
Right, I know it's a bit soon.. But could someone explain how to find the moles in question 1a of the June '12 Unit 4, because it's got me stumped. And it's probably the easiest question ever :P
Thanks in advance!


"Be the change you wish to see in the world."

I don't get it aswell, I think there is more to it than normal mole calculations.

I got as far as:

1.5+1.2=2.7
(2.7-2.06)=0.64

not sure how you work out the moles for each H2 and I2.

I know that the answer adds upto 0.64 so there is some link.
Original post by propagation
I don't get it aswell, I think there is more to it than normal mole calculations.

I got as far as:

1.5+1.2=2.7
(2.7-2.06)=0.64

not sure how you work out the moles for each H2 and I2.

I know that the answer adds upto 0.64 so there is some link.


It's all so confusing :frown:


"Be the change you wish to see in the world."

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