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IAL Chemistry Unit 1 edexcel 2017 October Mark Scheme Watch

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    How was the paper guys? It was pretty easy for me.
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    What the hell is a dimer?? i think theres alot of stuff not in unit 1
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    (Original post by jazlilong)
    What the hell is a dimer?? i think theres alot of stuff not in unit 1
    I didn't what that was too so I left that blank. Did you know the question about octane
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    is it the isoctane? i think its cause its more efficient at burning or something...
    theres a question about redox reaction and they ask whats the reaction.. isnt it unit 2 stuff?
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    it was displacement reaction i guess
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    it was precipitation i guess, because solid product was formed.
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    It was difficult for me
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    (Original post by Luj99)
    How was the paper guys? It was pretty easy for me.
    It was difficult for me
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    Were the abundances 66.75 and 22.25
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    (Original post by hami_2000)
    Were the abundances 66.75 and 22.25
    No it was some 77.something
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    (Original post by Dawood khalid)
    No it was some 77.something
    Yeah sorry i meant 77
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    (Original post by hami_2000)
    Yeah sorry i meant 77
    Can you remember any other questions you know the answers to. I wanna know how i did
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    (Original post by hami_2000)
    Can you remember any other questions you know the answers to. I wanna know how i did
    What about the last one tha lattice energy
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    I did the lattice energy minus everything else to find the electron affinity
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    i did the lattice energy the same way but didn't you have to divide by 2 to get the electron affinity for one electron?
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    (Original post by hami_2000)
    Yeah sorry i meant 77
    how come 77 something for the 35CL i got 101. something and for the next one it was i dont know but can you show how you calculated? also for question one how did you show the volume was 12cm3..it was the worst paper
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    a dimer is two polymer unit but i got that wrong cz i made a cyclic alkane
    (Original post by jazlilong)
    What the hell is a dimer?? i think theres alot of stuff not in unit 1
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    also how to calculate delta T ?? wth that wasnt in the course. it was difficulttt
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    also i hope the threshold is low for this one...mine was way too bad...any idea about the threshold?
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    What did you guys write for how do you know when enough water has been evaporated for the crystallization thing
 
 
 
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