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OCR Chemistry F322~ 4th June 2013~ AS Chemistry Watch

  • View Poll Results: How did you find the exam
    Hard A= 72
    42
    15.22%
    It was okay A= 76
    99
    35.87%
    Easy A= 79
    75
    27.17%
    Very Easy A=82
    60
    21.74%

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    100 pages!

    edit: damn namod
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    (Original post by Namod)
    Hello, i'm retaking this unit,
    and didn't do any F322 for 1 full year.
    Still didn't do any paper or anything, I'm thinking of starting my revision now.
    People say in this case do "cramming", but the question is now does "cramming" work?
    just do the past papers
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    (Original post by GeneralOJB)
    100 pages!
    beat you boss

    (Original post by needtosucceed=))
    just do the past papers
    ok thanks
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    (Original post by GeneralOJB)
    100 pages!
    LOL
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    (Original post by Namod)
    First post of 100 page I would like to thank everybody for reading this.
    Anyways back to topic, does cramming work or not?
    depends how much you know already
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    (Original post by needtosucceed=))
    depends how much you know already
    I know nothing but im quite clever.
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    (Original post by Namod)
    I know nothing but im quite clever.
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    (Original post by Namod)
    I know nothing but im quite clever.
    LOOL umm you should be able to cram quite well then
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    (Original post by Namod)
    Hello, i'm retaking this unit,
    and didn't do any F322 for 1 full year.
    Still didn't do any paper or anything, I'm thinking of starting my revision now.
    People say in this case do "cramming", but the question is now does "cramming" work?
    Anything is possible, though it can be a little stressful, as you might come across something you find difficult and that might take up most of your time revising for while you've still got some content to go over.
    However I do not know your ability with chemistry, so you might be fairly good at everything in the unit!
    Would you like to revise on here?
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    Predictions please guys - not feeling confident at all for this exam, so any suggestions of what could come up, so I can re-read over things? Thanks
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    Hey guys, need some clarification on q 3a)i) on January 2012. http://www.ocr.org.uk/Images/78566-q...-resources.pdf

    Do I include the mass of magnesium to work out Q? And if not why?
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    Is there a list of definition so I can memorise before sleeping tonight?
    I don't even have the main book, I just have the ocr chemistry book but I don't trust it definition wise.
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    (Original post by tetra-s)
    Hey guys, need some clarification on q 3a)i) on January 2012. http://www.ocr.org.uk/Images/78566-q...-resources.pdf

    Do I include the mass of magnesium to work out Q? And if not why?
    never, the mass is only talking about the solutions, not any solid compounds.
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    (Original post by cab1094)
    Predictions please guys - not feeling confident at all for this exam, so any suggestions of what could come up, so I can re-read over things? Thanks
    I think just about everything will come up as useral oh dear, but Global warming in particular hasn't come up in a while
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    (Original post by Namod)
    Is there a list of definition so I can memorise before sleeping tonight?
    I don't even have the main book, I just have the ocr chemistry book but I don't trust it definition wise.
    the ocr endorsed textbook that i'm assuming is the one you have has the exact definitions so learn them from there.
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    (Original post by needtosucceed=))
    nickel catalyst. 300oc
    Is it not 150 degreesC?
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    (Original post by niceguy95)
    I swear I gave a good method time but here it is again

    I just remember t as if it exothermic in foward direction (- delta H)

    Increase temp shifts to left (EXIL)
    Decrease temp shifts right. (EXDR)

    If its endothermic in foward direction (+ delta H)
    Increase temp shifts to the right (ENIR)
    Decrease temp shifts to the left (ENDL)

    Stupid method put that's how I remember for temperture

    As for pressure

    Ch4 + br2-----> 4ch3br
    Increase pressure shifts to side with fewer moles ( so in this reaction left as it has 2 moles)

    Decrease pressure shifts to side with more moles (so in this case the right as there 4 moles)

    *only use pressure if has a gas (g) symbol on all products and reactants


    My weird methods of remembering things
    I was hoping you'd post !! I couldn't find that explanation
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    (Original post by needtosucceed=))
    never, the mass is only talking about the solutions, not any solid compounds.
    But if it has been dissolved into solution, does this not increase the volume of solution?
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    (Original post by JimmyA*)
    Is it not 150 degreesC?
    i was thinking that, but i remember seeing 300 somewhere. they accept anything above 100
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    (Original post by tetra-s)
    But if it has been dissolved into solution, does this not increase the volume of solution?
    technically yep, but you never include it in the volume
 
 
 
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