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    (Original post by Ali_Ludley)
    For both the name the molecules I got:

    3,7-dimethyloct-3-ene

    1,1,1-triflouroethane

    Not sure about the first one but I'm pretty sure on the second one.
    Ah man. I put 2,6-dimethyloct-5ene
    Initially put down 3,7-dimethyloct-3-ene but scribbled it out.
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    (Original post by Kathiye)
    For the abundance one I got something like 870 million. xD And I can't remember the chlorine one.
    I got 780 million, but put it as 7.8x10^8
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    (Original post by juniorx)
    i got something like 2 ethyl 6 methyl hept 2 diene for the first one
    FUUUU missed the 2-diene. Will i just lose 1 mark as it was 2 marks?:mad:
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    (Original post by juniorx)
    what did you get for the abundance one near the end and the volume of chlorine in dm^3?
    780million and around 40000dm-3, you?
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    (Original post by imstuckk)
    i think its nitrate (III) ion
    **** thats definetly right
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    (Original post by imstuckk)
    how did everyone do on the equilibrium question?
    I found it okay! I think it was
    Increase temperature -> Decreased yield
    Increase pressure -> Increased yield
    I think that there was another question here, but I can't remember it... xD
    Then there was one asking why heating would increase the rate of reaction, which I got a little confused about since it would also decrease it, because of equilibrium stuff. But I just wrote about collision theory etc.
    For the one about the backward reaction I put that it would increase the rate of reaction.
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    (Original post by ActaNonVerba)
    780million and around 40000dm-3, you?
    yep but i wrote mine as 78x10^7 (don't think it matters though)
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    (Original post by Ali_Ludley)
    For both the name the molecules I got:

    3,7-dimethyloct-3-ene

    1,1,1-triflouroethane

    Not sure about the first one but I'm pretty sure on the second one.
    I put 3,7-dimethylocta-3-ene, do you think I'll get the mark since I put octa instead of oct?
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    http://en.wikipedia.org/wiki/Nitronium_ion

    The NO2+ molecule is here ^^

    NO2- is a nitrite ion
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    (Original post by Kathiye)
    For the abundance one I got something like 870 million. xD And I can't remember the chlorine one.
    I put down 780,000,000 ....I can't remember if that's what I put down acutually...something ridiculous though.
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    for the reaction with bromine.. We're we supposed to break both C=C bonds?? or we're we to leave the one in the cyclic chain?
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    (Original post by EstebanK0)
    Ah man. I put 2,6-dimethyloct-5ene
    Initially put down 3,7-dimethyloct-3-ene but scribbled it out.
    I think that that could work (maybe? I assume that you counted from the other side). I don't know whether you're meant to start with the lowest double bond side or the lowest methyl group side, if you know what I mean. xD Hopefully they'll accept both.
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    (Original post by EstebanK0)
    Ah man. I put 2,6-dimethyloct-5ene
    Initially put down 3,7-dimethyloct-3-ene but scribbled it out.
    why is it dimethyl. i thought there was a branch on the second carbon with 2 carbons surely making it an ethyl??? And i got a hept 2 diene
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    (Original post by EstebanK0)
    I put down 780,000,000 ....I can't remember if that's what I put down acutually...something ridiculous though.
    Oh! That was probably it. I just got my 8s and 7s mixed up in my memory. xD
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    (Original post by Kathiye)
    I found it okay! I think it was
    Increase temperature -> Decreased yield
    Increase pressure -> Increased yield
    I think that there was another question here, but I can't remember it... xD
    Then there was one asking why heating would increase the rate of reaction, which I got a little confused about since it would also decrease it, because of equilibrium stuff. But I just wrote about collision theory etc.
    For the one about the backward reaction I put that it would increase the rate of reaction.
    i got the same for the first 2, and for the increasing temperature, i wrote stuff like more molecules will have energy exceed the activation energy, so more successive collisions and rate increase. not sure about the last one
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    (Original post by ActaNonVerba)
    for the reaction with bromine.. We're we supposed to break both C=C bonds?? or we're we to leave the one in the cyclic chain?
    I think both as it's reacting in excess bromine.

    Yahoo answers:

    Bromine adds to alkenes to give dibromoalkanes with one Br added at each end of the original double bond.
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    (Original post by ActaNonVerba)
    for the reaction with bromine.. We're we supposed to break both C=C bonds?? or we're we to leave the one in the cyclic chain?
    well it said excess so i broke both and drew out the full structural (it didn't say you had to but i find it easier that way)
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    (Original post by juniorx)
    why is it dimethyl. i thought there was a branch on the second carbon with 2 carbons surely making it an ethyl??? And i got a hept 2 diene
    You had to look for the longest chain - there should have been an 8 carbon chain with two methyl groups on it. I think that you probably had one of the methyl groups as the end of the chain instead.
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    (Original post by ActaNonVerba)
    for the reaction with bromine.. We're we supposed to break both C=C bonds?? or we're we to leave the one in the cyclic chain?
    Break both of them, there should have been 4Br in the chain.
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    (Original post by Ali_Ludley)
    http://en.wikipedia.org/wiki/Nitronium_ion

    The NO2+ molecule is here ^^

    NO2- is a nitrite ion
    here it says nitrate : http://www.benjamin-mills.com/chemistry/nitrate.htm
 
 
 
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