CHEM1 15 May 2012 AQA OFFICIAL POST EXAM

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  1. AishaTara's Avatar
    • Overlord in Training
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by OFWGKTA)
    Wait aren't we allowed to discuss the answers after 24 hours or something? Or is that only for GCSE..

    only edexcel some exams which are sat in other countries, and probs IGCSE exams too

    (Original post by DisturbingKand0R)
    I walked out of this exam happy, reached home and started this thread, 30 posts in i almost bursted out crying


    aww no, dont! the mark schemes often except more than 1 answer. I try to avoid coming on here after an exam too
  2. Bubbles94's Avatar
    • Exalted Member
    • Posts: 346
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by DisturbingKand0R)
    I walked out of this exam happy, reached home and started this thread, 30 posts in i almost bursted out crying
    don't feel like that.. you could have all the right answers and everyone else could be wrong, none of us will know until august.. in january i used unofficial mar kschemes and in one subject i got 2 grades higher than i thought, and in another i got 2 grades lower.. so honestly don't take it to heart too much
  3. jakemarsden's Avatar
    • New Member
    • Posts: 18
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    ity was a reasonabll good exam i thought has anyone got idea of what the 6 marks could have been awarded for in the 6 mark period 3 question??
  4. Holy Cherrys's Avatar
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by DisturbingKand0R)
    I walked out of this exam happy, reached home and started this thread, 30 posts in i almost bursted out crying
    yeah same story.
    by the looks of it, we actually were supposed to divide by 5!

    still 4/5 you reckon?
  5. Madara's Avatar
    • Full Member
    • Posts: 81
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by exclusive110)
    Actually they do AQA all over the world, I did some AQA exams on Dubai
    Well they must be doing them at the same time then
  6. Jambone2's Avatar
    • Full Member
    • Location: Solihull, UK
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    Metals are malleable because they can be beaten into different shapes however the metal ions within them stay in the same environment (surrounded by de-localised electrons).
  7. exclusive110's Avatar
    • Junior Member
    • Posts: 50
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by Madara)
    Well they must be doing them at the same time then
    Usually they do , but not all the time.
  8. Charlottek12's Avatar
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    • Location: Macclesfield
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by DisturbingKand0R)
    I walked out of this exam happy, reached home and started this thread, 30 posts in i almost bursted out crying
    I'm sure it went better than you thought! I did that for almost all of my gcses and came out with good results
  9. rustytoe178's Avatar
    • New Member
    • Posts: 12
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by Ben_F)
    For titanium, I said that it could be bent into shapes because metals form layers held together by electrostatic forces from the delocalised electrons.
    Ahh well I mentioned de-localised electrons so maybe I'll get one mark
  10. DisturbingKand0R's Avatar
    • Respected Member
    • Location: London
    • Posts: 246
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by Salmanftw)
    yeah same story.
    by the looks of it, we actually were supposed to divide by 5!

    still 4/5 you reckon?
    yh i hope so
    the annoying thing is i can't see why the other people are right, doesn't seem logical.
  11. jakemarsden's Avatar
    • New Member
    • Posts: 18
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    Could someone clarify for me please whether the question that asks how VDW forces arise i put: "Movement of electrons causes instantaneous dipoles between neighboring molecules" does anyone no if this is right?
  12. Last Chance's Avatar
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    I retook this exam to boost up my Jan12 A scrape. :rolleyes:

    The paper was 'okay', except for the odd few silly mistakes i.e - automatically assuming the use for the hydrocarbon is making polymers. Getting the last one mark equation completely wrong and managing to cock up drawing the functional group isomer (how many marks was that?).

    Calculations were pretty straightforward I guess, it is the mass question I'm slightly unsure about. I divided the 5000cm^3 by 1x10^-6 to turn it into 5x10-3 m^3 and solved n=PV/RT to get 0.202 moles or something?

    (probably went wrong here)

    I looked at the equation and counted the total number of gases moles on the reactants side (??) What I recall now, is that they wanted you to work out the mass for a compound on the reactant side, and there was one mole of it, and 6 moles of other gases.
    I ended up multiplying by 1/7 and wrote down the moles.
    Then I calculated the mass, blah blah, got 2.01g.

    (^ probably 3/5 for this question if it's wrong)

    Someone answer my queries above.

    Anyone got the equation?
    Last edited by Last Chance; 15-05-2012 at 17:39. Reason: Opps
  13. ash356's Avatar
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by Bubbles94)
    don't feel like that.. you could have all the right answers and everyone else could be wrong, none of us will know until august.. in january i used unofficial mar kschemes and in one subject i got 2 grades higher than i thought, and in another i got 2 grades lower.. so honestly don't take it to heart too much
    Ain't that the truth... I came on here a few years back after one of my Physics GCSE's and felt immediately disheartened. Results came back and I got an A in the exam! You can't always accept the things here for face-value
  14. Last Chance's Avatar
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by jakemarsden)
    Could someone clarify for me please whether the question that asks how VDW forces arise i put: "Movement of electrons causes instantaneous dipoles between neighboring molecules" does anyone no if this is right?
    I don't remember a question like that. o_O
  15. mwdemon's Avatar
    • New Member
    • Posts: 12
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    for the isotope question is got 85.6
    for the mass i got 1.82
    for the concentration i got 2.2

    though January's paper was a lot better. :/
    i could not balance the equation

    what did people put for the titanium question?
  16. Holy Cherrys's Avatar
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    • Location: London
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    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by DisturbingKand0R)
    yh i hope so
    the annoying thing is i can't see why the other people are right, doesn't seem logical.
    na they're right cus the volume was 5 moles of gas.
    Boron was 1 mole so you did 1/5 x 0.005m^3 or whatever the values were and got the volume you were supposed to use.
  17. jakemarsden's Avatar
    • New Member
    • Posts: 18
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by Last Chance)
    I don't remember a question like that. o_O
    ow no im sure i can recall a question somewhere along them lines.
  18. DisturbingKand0R's Avatar
    • Respected Member
    • Location: London
    • Posts: 246
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by ash356)
    Ain't that the truth... I came on here a few years back after one of my Physics GCSE's and felt immediately disheartened. Results came back and I got an A in the exam! You can't always accept the things here for face-value
    no its not like that i got an A before in jan , i retook it to get a higher A, i just don't want the revision to go to waste
  19. Ahmad*'s Avatar
    • New Member
    • Posts: 22
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by Lily.K)
    Oh god, silly exam pressure mistakes! I was on the same track as you with the BO3 ion needing 3 sodiums, I just panicked
    it took me a while to see it; it was only work 1 mark, don't beat yourself up about it. Unit 2 is way more important either way
  20. Bubbles94's Avatar
    • Exalted Member
    • Posts: 346
    Re: CHEM1 15 May 2012 AQA OFFICIAL POST EXAM
    (Original post by jakemarsden)
    Could someone clarify for me please whether the question that asks how VDW forces arise i put: "Movement of electrons causes instantaneous dipoles between neighboring molecules" does anyone no if this is right?
    what question was that?! :L
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