OCR B (Salters) Chemistry F331 (Chemistry for Life) Thursday 23rd May Exam Discussion

Good luck guys, I took finished my A-level last year :biggrin:

. The words "heat under reflux" and "concentrated sulphuric acid" have haunted me ever since.

Reply 2

printergirl

13

im not looking forward to this !!

Reply 3

Original post by xxSherlockxx

Good luck guys, I took finished my A-level last year :biggrin:

. The words "heat under reflux" and "concentrated sulphuric acid" have haunted me ever since.

this right here is my motivation to learn those conditions and reagents

Reply 4

In all seriousness, make sure you learn those reagents and conditions. The A2 Summer exam has a massive list of them, any of which can come up. They're easy marks, don't lose them by not learning them!

Reply 5

username939180

Original post by xxSherlockxx

In all seriousness, make sure you learn those reagents and conditions. The A2 Summer exam has a massive list of them, any of which can come up. They're easy marks, don't lose them by not learning them!

May I ask where to get this list of reagents and conditions? What exactly are they for?

Reply 6

Original post by evenstar95

May I ask where to get this list of reagents and conditions? What exactly are they for?

I'm not sure where you can get them from, my chemistry teacher gave me mine. I think you can find it somewhere in the Chemical Ideas textbook though. They are all the conditions for various reactions, things like alcohol to aldehyde to carboxylic acid/ketone. Carboxylic acid to amines, amines to amides, etc.

Just looked it up, Chapter 14.2, but as I said, that is A2.

Reply 7

Original post by xxSherlockxx

I'm not sure where you can get them from, my chemistry teacher gave me mine. I think you can find it somewhere in the Chemical Ideas textbook though. They are all the conditions for various reactions, things like alcohol to aldehyde to carboxylic acid/ketone. Carboxylic acid to amines, amines to amides, etc.

Just looked it up, Chapter 14.2, but as I said, that is A2.

No you need to learn some for the F332 exam, the list for that in the f332 thread here on tsr :smile:

Reply 8

Original post by madrevision

No you need to learn some for the F332 exam, the list for that in the f332 thread here on tsr :smile:

Sorry, I meant the whole lot was for A2

Reply 9

ElChapo

18

Anyone got f331 Jan 2013 markscheme? Would like to mark this paper over the weekend rather than wait till monday, thanks.

Reply 10

lizz-ie

18

Hey guys, how can you easily distinguish between nucleophilic substitution, electrophilic substitution, radical substitution and elimination reactions?

Reply 11

Original post by ElChapo

Anyone got f331 Jan 2013 markscheme? Would like to mark this paper over the weekend rather than wait till monday, thanks.

Here is the markscheme, http://www.thestudentroom.co.uk/attachment.php?attachmentid=210305&d=1366452870
Have you got the paper?? Haha really want to have a go at at :smile:

Reply 12

Original post by evenstar95

May I ask where to get this list of reagents and conditions? What exactly are they for?

ImageUploadedByStudent Room1368967740.359811.jpg

Made this if its any help! But this won't be so useful in the F331 exam

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Reply 13

Original post by lizz-ie

Hey guys, how can you easily distinguish between nucleophilic substitution, electrophilic substitution, radical substitution and elimination reactions?

Sub - something is removed. and replaced by something else
Add- something adds itself to a double bond (reactant loses d bond). and idk about the rest my f332 revision is currently pending- look in the revision guide... :smile:

Reply 14

physics done- chemistry here I come :smile:

Reply 15

CompSci1

Does anyone have a list of questions, which normally comes up in F331?

Reply 16

tasniaa

Just finished OCR biology exam today.
I have this exam on Thursday too, does anyone have any predictions?

Reply 17

ElChapo

18

Original post by CompSci1

Does anyone have a list of questions, which normally comes up in F331?

Really bro? A list? lol just do some papers, but there is always a question on octane number, bond angle and shape, heterogeneous catalysts, absorption and emission and mass spec

Reply 18

Can anyone help me out this is really bugging me and I know it should be easy:

2N2O(g) ---> 2N2(g) + O2

Standard enthalpy change of formation for NO2 = +82.0 kJmol^-1

Calculate enthalpy change under standard conditions for this reaction

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Reply 19