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**Chemistry...Before/After

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    #122
    finality
    Registered Users Posts: 1,763 ✭✭✭finality


    David1994 wrote: »
    Nope honours... :P I think there is a question like heat of reaction between HCL and NaOH. I could very wrong now but I just remember one where you use polystyrene cups and stuff like that.

    Ooooooooooh yeah, completely forgot about that one :L


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    #123
    ChemHickey
    Closed Accounts Posts: 3,479 ✭✭✭ChemHickey


    Benzoic acid is very unlikely come up. It was up last year!


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    #124
    FaoiSin
    Registered Users Posts: 789 ✭✭✭FaoiSin


    ChemHickey wrote: »
    Benzoic acid is very unlikely come up. It was up last year!

    And the year before :P


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    #125
    David1994
    Registered Users Posts: 1,073 ✭✭✭David1994


    What could be likely to come up? :D


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    #126
    eia340600
    Closed Accounts Posts: 108 ✭✭eia340600


    Well, 4 days left till d-day. I decided to take the chemistry exam last December and have opened my book for the first time today. Hopefully I'll be able to get through it all and get a nice B out of it..


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    #127
    Monsieur Folie
    Registered Users Posts: 1,988 ✭✭✭Monsieur Folie


    eia340600 wrote: »
    Well, 4 days left till d-day. I decided to take the chemistry exam last December and have opened my book for the first time today. Hopefully I'll be able to get through it all and get a nice B out of it..

    You're trying to do the Chemistry course in 4 days?

    Good luck. :p


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    #128
    eia340600
    Closed Accounts Posts: 108 ✭✭eia340600


    Monsieur Folie wrote: »
    You're trying to do the Chemistry course in 4 days?

    Good luck. :p

    Trying being the operative word! I need 160 between this and physics. I'm hoping for some kind of miracle in the Chem exam that will let me bring my book in with me. Maybe some sudden blindness in the invigilator???


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    #129
    Dicksboro_man
    Registered Users Posts: 414 ✭✭Dicksboro_man


    eia340600 wrote: »
    Trying being the operative word! I need 160 between this and physics. I'm hoping for some kind of miracle in the Chem exam that will let me bring my book in with me. Maybe some sudden blindness in the invigilator???

    a good start would be to get off this.. :D

    definitely study organic and atomic theory.


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    #130
    Monsieur Folie
    Registered Users Posts: 1,988 ✭✭✭Monsieur Folie


    Dicksboro_man wrote: »
    a good start would be to get off this.. :D

    definitely study organic and atomic theory.

    ^^ This!!

    Also, if you know the experiments well enough that's three questions sorted. That along with organic and atomic theory should get you by well enough, as long as you know a couple of other key definitions and stuff from other areas.

    Let us know how you get on. :pac:


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    #131
    Mista
    Registered Users Posts: 183 ✭✭Mista


    And look over rates of reactions and chemical equilibrium, they could be a full question by themselves :P


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    #132
    Liveforrugby
    Registered Users Posts: 343 ✭✭Liveforrugby


    "To study some oxidation-reduction reactions" one of the mandatory experiments

    Does this ever come up anywhere? I haven't seen it anywhere, am I missing something?


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    #133
    Mista
    Registered Users Posts: 183 ✭✭Mista


    Liveforrugby wrote: »
    "To study some oxidation-reduction reactions" one of the mandatory experiments

    Does this ever come up anywhere? I haven't seen it anywhere, am I missing something?

    The ones with sodium thiosulfate, iodine solution, potassium permanganate, bleach (sodium hypochlorite).. don't think they're on OL :)


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    #134
    Liveforrugby
    Registered Users Posts: 343 ✭✭Liveforrugby


    No I mean the ones with the halogens, like adding chlorine to pottasium bromide where you get an orange colour due to the Br2, all those, have any of you seen any of that ever being asked?


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    #135
    Mista
    Registered Users Posts: 183 ✭✭Mista


    Liveforrugby wrote: »
    No I mean the ones with the halogens, like adding chlorine to pottasium bromide where you get an orange colour due to the Br2, all those, have any of you seen any of that ever being asked?

    Oh.. nope, I've never seen anything like that.. why do you ask?


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    #136
    ChemHickey
    Closed Accounts Posts: 3,479 ✭✭✭ChemHickey


    Liveforrugby wrote: »
    No I mean the ones with the halogens, like adding chlorine to pottasium bromide where you get an orange colour due to the Br2, all those, have any of you seen any of that ever being asked?
    They were asked in a mock back in like 2003 or so but they would be difficult to get a 50marker on them unless they have some ox red. Eqns to balance.


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    #137
    leaveiton
    Closed Accounts Posts: 1,778 ✭✭✭leaveiton


    They could come up in a section B question on redox too.


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    #138
    Mista
    Registered Users Posts: 183 ✭✭Mista


    ChemHickey wrote: »
    They were asked in a mock back in like 2003 or so but they would be difficult to get a 50marker on them unless they have some ox red. Eqns to balance.

    Well I wouldn't be too worried if it was only in a mock :)


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    #139
    Liveforrugby
    Registered Users Posts: 343 ✭✭Liveforrugby


    Either way, it's making an appearance on our paper..


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    #140
    ChemHickey
    Closed Accounts Posts: 3,479 ✭✭✭ChemHickey


    Liveforrugby wrote: »
    Either way, it's making an appearance on our paper..
    Hopefully. they're simples.


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    #141
    ashalingable
    Registered Users Posts: 21 ✭ashalingable


    can someone post a link of the chemistry syllabus? my teacher wasn't too good to say the least and i want to make sure im not leaving anything out! :)


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    #142
    FaoiSin
    Registered Users Posts: 789 ✭✭✭FaoiSin


    ashalingable wrote: »
    can someone post a link of the chemistry syllabus? my teacher wasn't too good to say the least and i want to make sure im not leaving anything out! :)

    http://www.curriculumonline.ie/uploadedfiles/PDF/lc_chemistry_sy.pdf


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    #143
    Liveforrugby
    Registered Users Posts: 343 ✭✭Liveforrugby


    To investigate Le Chatelier's principle using 3 named experiments.

    Anyone ever see this come up anywhere? Also a mandatory experiment


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    #144
    Spattersonox
    Registered Users Posts: 134 ✭✭Spattersonox


    Liveforrugby wrote: »
    To investigate Le Chatelier's principle using 3 named experiments.

    Anyone ever see this come up anywhere? Also a mandatory experiment

    well I'm pretty sure we can't even do two of them, because of banning :/ So I don't think they'd ask us a full question on it. Maybe part of the equilibrium question :)


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    #145
    David1994
    Registered Users Posts: 1,073 ✭✭✭David1994


    Liveforrugby wrote: »
    To investigate Le Chatelier's principle using 3 named experiments.

    Anyone ever see this come up anywhere? Also a mandatory experiment

    Well a a question on it came up in like 2003 or 2004 :P But it was only part of a equilibrium question. We never even did that experiment :P Well we never did a lot tbh...(Crap teacher) Have had to do most of the chemistry work on my own...


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    #146
    ei.sderob
    Closed Accounts Posts: 108 ✭✭ei.sderob


    I've had a quick look at the final experiment in the water chapter, the one on free chlorine in water, is there any point in looking at studying it thoroughly? I mean it hasn't come up like. Neeeeed the A1!!!


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    #147
    Geo10
    Registered Users Posts: 1,545 ✭✭✭Geo10


    Is anyone else leaving out the chapters on organic families and reactions? Have 3 days to start revising for this and I never studied organic (except the fuels and heats of rxn chapter) in the first place! So won't have time to!
    That organic comes up as 2 Qs so should be grand!
    Also my teacher never did an option with us but I'm going to study industrial/ atmospheric chemistry out of rapid revision. I started today and its the easiest section in the whole course. Having done geography and biology covers half of it!

    I hope there's a big focus on atomic theory. I also love nuclear chemistry water and acids/bases. Hopefully the rates, equilibrium and fuels Qs aren't too tricky!! I should be ok for Q1 and Q3 too once I start revising!!


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    #148
    ChemHickey
    Closed Accounts Posts: 3,479 ✭✭✭ChemHickey


    ei.sderob wrote: »
    I've had a quick look at the final experiment in the water chapter, the one on free chlorine in water, is there any point in looking at studying it thoroughly? I mean it hasn't come up like. Neeeeed the A1!!!

    Do. It could come up as Exp Q3 as a half question, or he could try and stretch it out to get 50marks on it but it's unlikely. A half question definetly is possibly


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    #149
    Random_Person
    Registered Users Posts: 328 ✭✭Random_Person


    What do people think of the Organic Reactions question. That's the one with addition/substitution etc., reaction mechanisms and evidence..

    It can be a difficult one but last year it was quite a difficult one so I'm optimistic that they'll be kind this year. :rolleyes:


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    #150
    FaoiSin
    Registered Users Posts: 789 ✭✭✭FaoiSin


    If you need an A1 I think you should study everything. I wish people couldn't just get them by narrowing down the course and guessing what will come up.


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    #151
    Random_Person
    Registered Users Posts: 328 ✭✭Random_Person


    YeaaahFaoiSin wrote: »
    If you need an A1 I think you should study everything. I wish people couldn't just get them by narrowing down the course and guessing what will come up.

    But predictions are always right! Take English from this yea.. oh wait.. I know, take English from a few years ago when Bolan.. oh right.

    don't you just love predictions?


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