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January Edexcel Chemistry IAL Unit 1 2016 (Thread) Watch

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    (Original post by Electrify)
    Atom economy was something like 82% if I got it right.
    i got the same
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    (Original post by Electrify)
    Atom economy was something like 82% if I got it right.
    Yep I got that as well. *virtual high five*

    I remember it being 82/100 x 100, it was an easy question :P
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    Yo guys please tell me how many peaks you got for oxygen, is my logic fine or not? I am biting my finger nails over here.
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    Guys with the Hess Cycle I put the arrows from bottom to top and got like -3030.5kj/mol. Please tell me that was right.
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    (Original post by Electrify)
    Guys with the Hess Cycle I put the arrows from bottom to top and got like -3030.5kj/mol. Please tell me that was right.
    it is right
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    Omg lol if I get the hess law question right I am going to be so damn happy. That should be a confirmed A for me then. Holy crap. So do you draw both arrows from bottom to up? Because that's what I did.
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    (Original post by AhmedSiddiqui)
    Yep I got that as well. *virtual high five*

    I remember it being 82/100 x 100, it was an easy question :P
    i got 84/102 x 100 which gave me 82.35
    is this wrong?
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    (Original post by YesterdaysDreams)
    i got 84/102 x 100 which gave me 82.35
    is this wrong?
    Aww man I think you did get it wrong. I calculated the ram twice and I remember it being 100.
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    Ok can anybody confirm how does the ums scales work..? I mean to achieve the full 120/120 ums do you need to get full marks from the paper or what?
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    (Original post by AhmedSiddiqui)
    Aww man I think you did get it wrong. I calculated the ram twice and I remember it being 100.
    do you remember the formula of the hydrocarbon
    in the equation
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    (Original post by YesterdaysDreams)
    do you remember the formula of the hydrocarbon
    in the equation
    Yup I remember that as exactly 82.
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    (Original post by AhmedSiddiqui)
    Yup I remember that as exactly 82.
    what was it? (the equation)
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    pretty sure it was 82%
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    (Original post by Zainat0987)
    Ok can anybody confirm how does the ums scales work..? I mean to achieve the full 120/120 ums do you need to get full marks from the paper or what?
    No, you don't need to obtain full marks in raw to get a 120/120. "Raw" means how much you get in the paper out of the original number of marks. Often, if the paper is a little hard, you can obtain full UMS with a relatively low raw mark. Scaling is very normal though. Science papers almost always have scaling. You can get a higher percentage than your raw mark with scaling. Hope I helped!
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    (Original post by YesterdaysDreams)
    what was it? (the equation)
    It was a benzene ring with an OH group, I believe
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    I got the Enthalpy change value around -3000ish.
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    For the atom economy, it was dehydration of Cyclohexanol.

    Cyclohexanol --> Cyclohexene + Water
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    The % yield, i got was 73.5% anyone else?
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    (Original post by elhm18)
    No, you don't need to obtain full marks in raw to get a 120/120. "Raw" means how much you get in the paper out of the original number of marks. Often, if the paper is a little hard, you can obtain full UMS with a relatively low raw mark. Scaling is very normal though. Science papers almost always have scaling. You can get a higher percentage than your raw mark with scaling. Hope I helped!
    Oh so thats how its works.. last may one of my friend got 120ums ...and i thought he got the full raw mark...btw does it goes the same way for maths c12?? And what do you guys predict for the A to be this term..?
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    (Original post by Zainat0987)
    Oh so thats how its works.. last may one of my friend got 120ums ...and i thought he got the full raw mark...btw does it goes the same way for maths c12?? And what do you guys predict for the A to be this term..?
    Last may was 80/80 for full UMS.

    I'm 100% sure, full UMS would be at 80/80 for this paper as well.
 
 
 
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