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OCR Salters Chemistry B F332 Advance Notice Jan 2011 Understanding Our Changing Atmos Watch

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    What did everyone write for that question about why the reaction that didn't have 100% atom economy be better for economical purposes... or something..?
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    (Original post by hidden_desire)
    What did everyone write for that question about why the reaction that didn't have 100% atom economy be better for economical purposes... or something..?
    Think I said that it required high costs to get the conditions required for the reaction to occur
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    (Original post by hidden_desire)
    What did everyone write for that question about why the reaction that didn't have 100% atom economy be better for economical purposes... or something..?
    Said something along the lines of expensive to get reactant in pure form, the solutions would be more widely available and cost less.
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    (Original post by hidden_desire)
    What did everyone write for that question about why the reaction that didn't have 100% atom economy be better for economical purposes... or something..?
    I put that it's more expensive to transport Chlorine, amongst several other rushed answers
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    (Original post by hidden_desire)
    What did everyone write for that question about why the reaction that didn't have 100% atom economy be better for economical purposes... or something..?
    I wrote money is spent on creating enough energy to convert K into its gaseous state for the reaction to occur
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    What did you put for that building houses with poly(phenylethene), why is good?
    I put that its a good insulator.
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    (Original post by russdood93)
    What did you put for that building houses with poly(phenylethene), why is good?
    I put that its a good insulator.
    I put its strong and turgid :/
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    (Original post by coffee345)
    i said to make polypropene e.g. fibres?? -.-
    Which question was that?

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    (Original post by russdood93)
    What did you put for that building houses with poly(phenylethene), why is good?
    I put that its a good insulator.
    Turns out Poly(phenylethene) is polystyrene...
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    (Original post by jpurkis1)
    Which question was that?

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    Turns out Poly(phenylethene) is polystyrene...
    it's the one about what can propene be used for in industrial processes? O.O

    and i put flexibility for polystyrene so i got that 1 wrong -____-"
    i think i failed this paper...what did you get in June?
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    (Original post by russdood93)
    What did you put for that building houses with poly(phenylethene), why is good?
    I put that its a good insulator.
    Same! That's what I thought, because it trapped air and it was used for building houses in cold areas
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    (Original post by coffee345)
    it's the one about what can propene be used for in industrial processes? O.O

    and i put flexibility for polystyrene so i got that 1 wrong -____-"
    i think i failed this paper...what did you get in June?
    I'm pretty confused about this question! I'm so sure the question was 'suggest a SOURCE of propene....'

    So I wrote crude oil.

    Sigh. I wanted to pick up some marks through this re-sit so I could get a solid A by the end of the year...
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    (Original post by tom108)
    I put its strong and turgid :/
    Dunno about TURGID but saying Rigid will probably get a mark as I saw a similar question in a older exam paper and they allowed Rigid as an answer.
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    (Original post by hidden_desire)
    I'm pretty confused about this question! I'm so sure the question was 'suggest a SOURCE of propene....'

    So I wrote crude oil.

    Sigh. I wanted to pick up some marks through this re-sit so I could get a solid A by the end of the year...
    I need an A too...but i don't think i'll get it at this rate...i probably end up re-sitting my re-sit >.<

    what grade did you get for this in June?
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    (Original post by coffee345)
    I need an A too...but i don't think i'll get it at this rate...i probably end up re-sitting my re-sit >.<

    what grade did you get for this in June?
    Well overall in Chemistry I was only 1 measly mark off an A. But that was because I did pretty well in my coursework - otherwise I was a few marks off an A in both :/
    A2's even harder, so .. well.. let's just say I'm having a hard time trying to stay optimistic

    Hehe. Wbu? x
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    (Original post by hidden_desire)
    Well overall in Chemistry I was only 1 measly mark off an A. But that was because I did pretty well in my coursework - otherwise I was a few marks off an A in both :/
    A2's even harder, so .. well.. let's just say I'm having a hard time trying to stay optimistic

    Hehe. Wbu? x
    I was 8 marks off an A overall in Chemistry...

    What did you do for you Chem investigation?
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    (Original post by hidden_desire)
    I'm pretty confused about this question! I'm so sure the question was 'suggest a SOURCE of propene....'

    So I wrote crude oil.

    Sigh. I wanted to pick up some marks through this re-sit so I could get a solid A by the end of the year...
    Seems people are a bit confused as to what the question was asking...I put crude oil as well.
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    (Original post by coffee345)
    it's the one about what can propene be used for in industrial processes? O.O

    and i put flexibility for polystyrene so i got that 1 wrong -____-"
    i think i failed this paper...what did you get in June?
    A low B
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    (Original post by jpurkis1)
    A low B
    Well, from the answers you wrote they seem logical so i think you might be able to get an A

    i got a high B for this paper last June...but i don't know what happened today

    ah well - let's just hope for low grade boundaries ><
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    (Original post by coffee345)
    Well, from the answers you wrote they seem logical so i think you might be able to get an A

    i got a high B for this paper last June...but i don't know what happened today

    ah well - let's just hope for low grade boundaries ><
    Low grade boundaries ftw...
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    Right the GRADE BOUNDARY for this paper was released by OCR today, its:

    The total number of raw marks available is 100

    A -- 68/100

    B -- 62/100

    C -- 57/100

    D -- 52/100

    E -- 47/100

    U -- 0/100

    *Source = http://www.ocr.org.uk/download/admin...l_raw_mark.pdf

    _________

    I'm happy with how the grade boundaries turned out for this paper!
 
 
 
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