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Reply 3700
Original post by such
I did reply earlier...



I'm not sure what the correct answer is though, but unfortunately it was not a carboxylic acid group.


It was an ester group.:smile:
Original post by Lysipud
Did anyone else get -4534 for the formation?


what equation did you use, did u use hess law or the formation equation?
Original post by such
You're right, and I think you will get the mark.



I don't think that would be acceptable. UV light is essential to start a radical reaction.


Thanks :smile: and yeah it was definitely UV light i didn't realize in the exam
30minns = Unofficial markscheme :biggrin:
Reply 3704
What was the answer to why a large number of products are produced during cracking one?
Reply 3705
Any ideas on grade boundaries?
I got 87+-2 Do you think that would definitely be an A?
Original post by GeneralOJB
It's e/z not cis/trans bro.

I put uv light, but heat will almost certainly be allowed.


My teacher told me cis is the Z and trans the E isomer?
think I got 96/100, if I got the maths questions right, can't remember what I got for them at all lol
Original post by jacksonmeg
if you just show the making of ozone that isnt maintaining, its increasing, right ?


Yes it is maintained because the reaction is reversible.
Reply 3710
Original post by tom689
Any ideas on grade boundaries?


I reckon:

78 - A.
71 - B.
64 - C.
57 - D.
50 - E.
43 - U.

:biggrin::wink::smile:


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Reply 3711
Original post by nothepreacher
I got 87+-2 Do you think that would definitely be an A?


Yeah...
Of course, of course, of course!




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My teacher told me that the largest number of C atoms you can get in an alkane ring is 6, so wouldn't the skeletal formula of Octane be a hexagon with two methyl groups extending from it?

I remember it being discussed not so long ago.

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Original post by nothepreacher
I got 87+-2 Do you think that would definitely be an A?


Definitely!
Original post by Saif95
Thanks!

Sorry for thinking you were lying


It's fine, you are forgiven, It's weird though, the length of time it took to upload.
Original post by Liberty.
What do you think will be an A for the coursework? I got 35/40 :tongue: and I'm still worrying.


usually 34/40 but some my teacher fear that teachers from other schools are helping students cheat causing grade boundaries to maybe go up
Original post by Ché.
I reckon:

78 - A.
71 - B.
64 - C.
57 - D.
50 - E.
43 - U.

:biggrin::wink::smile:


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too low It would be 84 for an A I supoose
Original post by nothepreacher
I got 87+-2 Do you think that would definitely be an A?


I should think so!

Original post by Room4student
My teacher told me cis is the Z and trans the E isomer?


We don't need to do cis/trans only E/Z :smile:
Reply 3718
Original post by Ché.
I reckon:

78 - A.
71 - B.
64 - C.
57 - D.
50 - E.
43 - U.

:biggrin::wink::smile:


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THIS! Maybe 76-77 for an A ;-)
I thought the paper was really nice but I made 1 stupid mistake on percentage yield by writing on my paper x100 but I accidentally did x10 on my calculator and didn't realise until after the papers had been collect :/


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