OCR A2 Chemistry Unit 5, F325 15th June 2015
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Original post by TheLegalDealer
Hi guys , can anyone help me with this nucleophillic substitution reaction with amines . I've never come across nor taught it 
It should be a synoptic link to f322. Amines can substitute an halogen in halogenalkanes in a process called nucleophilic substitution.
Edit: LOL yeah mine is a bit wrong, but not too far off tbh
(edited 9 years ago)
and this one
Thanks
Do only 2 Cl ligands get substituted for the ketone group?
Thanks
Do only 2 Cl ligands get substituted for the ketone group?
(edited 9 years ago)
Original post by Hectors
It should be a synoptic link to f322. Amines can substitute an halogen in halogenalkanes in a process called nucleophilic substitution.
Edit: LOL yeah mine is a bit wrong, but not too far off tbh
Edit: LOL yeah mine is a bit wrong, but not too far off tbh
That what i got at the start
, but is obv wrong . Is this type of question common in f324 ??
Original post by Saywhatyoumean
Hi can anyone help me with this question?
I don't know how to draw the complex at all lol
I don't know how to draw the complex at all lol
Original post by Saywhatyoumean
and this one
Thanks
Do only 2 Cl ligands get substituted for the ketone group?
Thanks
Do only 2 Cl ligands get substituted for the ketone group?
I've just drawn something and it's so wrong
What's the answer?
(edited 9 years ago)
Original post by TheLegalDealer
That what i got at the start , but is obv wrong . Is this type of question common in f324 ??
, but is obv wrong . Is this type of question common in f324 ??I don't think so because it's not in the f324 book or in the specification.
Original post by Hectors
I don't think so because it's not in the f324 book or in the specification.
I'm going try and learn it just in case ...
Original post by TheLegalDealer
I'm going try and learn it just in case ...
It wouldn't come up
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Original post by Captain Anonymous
probably wouldn't come up but ill go over the basics of it just in case it pops in the exam , you cant be too sure nowadays
Original post by TheLegalDealer
I'm going try and learn it just in case ...
Learn the things you need on the syllabus, way more important :P
Original post by AnnekaChan173
Learn the things you need on the syllabus, way more important :P
Of course
, but why did it come up in this ocr question ? old spec maybe ?Original post by AnnekaChan173
Lol that's a guess
hmm I thought it would be something like this?
I'm not sure though :/
Original post by AnnekaChan173
I've just drawn something and it's so wrong
What's the answer?
I've just drawn something and it's so wrong
What's the answer?
wait why is that wrong? That's what I thought the answer was lol
I don't have the answer to that one
or the other one I posted :POriginal post by AnnekaChan173Lol that's a guess
Seriously stop doing these papers
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Original post by Mutleybm1996
That one was in the OCR section btw
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Original post by Saywhatyoumean
Where did you get these questions from?
Original post by Dry humour
Where did you get these questions from?
On the a level chemistry website there are sections that split it into exam boards
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Original post by Saywhatyoumean
hmm I thought it would be something like this?
I'm not sure though :/
I'm not sure though :/
Idk, can't be right though, H won't have four bonds attached to it. Also NH2NH2 is bidentate.
Original post by Mutleybm1996
It's on the a levelchemistry site in the OCR section, chill out.
Can someone help me with this question on buffers?? I think im missing something very simple..
So I basically got the whole question wrong because im not sure how they got 0.24 mol for the acid
So I basically got the whole question wrong because im not sure how they got 0.24 mol for the acid
Can someone help me in question 1aiv please?
I don't understand how we are suppose to know what order the C2H4Br2 is for the rate concentration graph. I know it is first order for concentration time graph. But am I right in thinking that the orders can be different for a concentration time graph compared to a rate concentration graph?
This is really bugging me so any help is great!
Here is the answer -
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Attachment not found
Attachment not found
I don't understand how we are suppose to know what order the C2H4Br2 is for the rate concentration graph. I know it is first order for concentration time graph. But am I right in thinking that the orders can be different for a concentration time graph compared to a rate concentration graph?
This is really bugging me so any help is great!
Here is the answer -
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