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OCR Chemistry F322~ 4th June 2013~ AS Chemistry

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Original post by needtosucceed=)
nope I did f324 in january, we did the january paper for f325 as a mock in class. Hoping this junes paper should be a lot better considering how bad januarys was


because it was that bad, i am more prepared.
Each time i dont want to revise or tired , i think about the last 2 questions in the exam and not being able to find the value of n which i wasted like 20 minutes on and still got it wrong
Original post by scorpio22
because it was that bad, i am more prepared.
Each time i dont want to revise or tired , i think about the last 2 questions in the exam and not being able to find the value of n which i wasted like 20 minutes on and still got it wrong


omg yea the last two questions were soo bad, how would the examiners even think we would have a clue about finding n?! the first part of the paper was okay though. Did you get your paper back then, what was your raw mark?
Original post by needtosucceed=)
omg yea the last two questions were soo bad, how would the examiners even think we would have a clue about finding n?! the first part of the paper was okay though. Did you get your paper back then, what was your raw mark?


i didnt get my paper back but was able to remember what i put..
it was really bad... i would be happy with 65% in this exam lool.. how did u do in f324
This actually is a AQA chemImageUploadedByStudent Room1370032587.494996.jpg exam paper, but how do you write overall equations, i thought you cancel the ones that appear on the same side of the equations?


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Reply 1184
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ssflcb
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Original post by needtosucceed=)
because the 15 peak is in both isomers. its the 29 peak thats only in butane therefore it must be butane :smile:


understood ! Thanks so much for your help :smile:
Reply 1185
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Hello...
Original post by JimmyA*
It is it forms a kink (like a zig zag shape), you do it in F324, so there will be less points of contact, hence why unsaturated triglycerides are liquid at room temperature(oils) and saturated triglycerides are solid at room temperature (animal fats, butter etc.).

Oh okay, havent done F324 so have never heard of it, do you know if you'd still get marks for mentioning it in this exam??
Reply 1186
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ImAz
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Does anyone have a link to the Jan 2010 mark scheme? Can't find it anywhere


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Reply 1187
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ssflcb
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Original post by ImAz
Does anyone have a link to the Jan 2010 mark scheme? Can't find it anywhere


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http://www.ocr.org.uk/Images/63346-mark-scheme-january.pdf

this it ? :smile:
Original post by Jimmy20002012
This actually is a AQA chemImageUploadedByStudent Room1370032587.494996.jpg exam paper, but how do you write overall equations, i thought you cancel the ones that appear on the same side of the equations?


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yep you do, the HBr and HBrO cancel out.
so this is the answer 2H2O2 = 2H2O + O2
Reply 1189
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ImAz
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Original post by ssflcb


Nope that's F321 :\


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Original post by ImAz
Nope that's F321 :\


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nope they were all on that document :smile:
Reply 1191
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JimmyA*
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Original post by Hello...
Oh okay, havent done F324 so have never heard of it, do you know if you'd still get marks for mentioning it in this exam??

Nope you don't need to know it at all :smile:
Reply 1192
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ImAz
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I got 69 UMS in the January exam.. Really bad I know, but it was a rough time. Does anyone know what I need minimum in this exam to get an A or even a high B?


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Original post by needtosucceed=)
yep you do, the HBr and HBrO cancel out.
so this is the answer 2H2O2 = 2H2O + O2


What about the H2O2, if they ate on the same side of both equations wont they cancel?


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Original post by ImAz
I got 69 UMS in the January exam.. Really bad I know, but it was a rough time. Does anyone know what I need minimum in this exam to get an A or even a high B?


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Around 78-80


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Reply 1195
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ImAz
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Original post by needtosucceed=)
nope they were all on that document :smile:


Ohh! Phew cheers for pointing that out


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Original post by Jimmy20002012
What about the H2O2, if they ate on the same side of both equations wont they cancel?


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they're not on both sides of the equation. when your cancelling down you write all the reactants from the 2 equations together, then do an arrow and write all the products. then you cancel things on both sides. you don't cancel between equations.
Original post by ImAz
I got 69 UMS in the January exam.. Really bad I know, but it was a rough time. Does anyone know what I need minimum in this exam to get an A or even a high B?


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depends what you got on ur practicals. If you did really well a high B/low A is fine. If you did bad then you'd need a lot higher, in the top 80's/90's
also 69 is good, only 3 off an A :smile:
Reply 1198
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Sum786
Original post by theo3335796
Maybe this? Excuse my terrible paint drawing


Hi,
why do you have a CH2CH3 wouldn't it just be CH2CH2?
HELP?
What are people aiming to get and what did they get in f321 in terms of UMS, all im really seeing on this foru, are your typical A grade candidates lol, every ones so smart

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