**Chemistry...Before/After

Pepperr · 11-06-2012 7:55pm

stmacsmagician wrote: »

our chem teacher is fairly certain that the volatile liquid experiment will come up as question 3! that means more than likely that the rates of reaction could come up as a 7/8 which would be perfect!:) any ideas what will come up as question 1? im hoping for iron tablets, but doubt it!:/

Going on how successful the "tips" for the other papers have been, I would just try to learn everything, focussing on the Organics and Volumetrics experiments, since 2 of them always come up!

Next would be Fuels and heats of reactions.

A good starting point I guess, best to learn everything though.

DepoProvera · 11-06-2012 10:04pm

What are you lads doing thinking about chemistry? We've loads of time, yis are making me feel bad

SmurfOxide · 12-06-2012 9:11pm

ash2012 wrote: »

hey i'm just finishing 5th year and was wondering is it too late to pick up chemistry?? is it hard and would i have enough time to achieve a high grade ? thanks

Oh god DO NOT DO IT!!! I hate the subject with a burning passion and am most definitely going to fail the blasted thing next week. Unless you are a natural genius OR are gonna work non stop, no exceptions, don't take it up. I think you either get it or you don't, and if like me you don't you will be snookered. If I were you I would just focus on what you're at now, unless you are thinking that line for college, but if not just forget about it. I know two people that enjoy it? Yeah and they don't have a life..(I'm only joking by the way, actually good friends with one of them). just evaluate how smart you actually are (not what you want to be) and also how much time you can give it. good luck!

Coeurdepirate · 12-06-2012 9:27pm

So what do I study in order to get a D1? All Organic, Equilibrium, Titrations, Atomic Theory... what else?

reznov · 12-06-2012 10:04pm

lol I enjoy chemistry and I do have a life. People who fail at chemistry failed to understand the principles behind it.

Fundamentals are ESSENTIAL in the study of chemistry. It takes around a year to get on an A level.

reznov · 12-06-2012 10:05pm

Even with all that, Coeur, a D1 will be difficult to pull off if they throw a spanner into the works. But yes! LEARN all the organic xperiments and titrations. Guaranteed marks!

DepoProvera · 12-06-2012 10:05pm

SmurfOxide wrote: »

Oh god DO NOT DO IT!!! I hate the subject with a burning passion and am most definitely going to fail the blasted thing next week. Unless you are a natural genius OR are gonna work non stop, no exceptions, don't take it up. I think you either get it or you don't, and if like me you don't you will be snookered. If I were you I would just focus on what you're at now, unless you are thinking that line for college, but if not just forget about it. I know two people that enjoy it? Yeah and they don't have a life.. just evaluate how smart you actually are (not what you want to be) and also how much time you can give it. good luck!

Hey hey hey.. that's just like your opinion man! :cool:

It is a tough enough subject relatively speaking. But if you but in the work it will become second nature to you and its a lovely short course in the end

Monsieur Folie · 13-06-2012 6:17pm

SmurfOxide wrote: »

Oh god DO NOT DO IT!!! I hate the subject with a burning passion and am most definitely going to fail the blasted thing next week. Unless you are a natural genius OR are gonna work non stop, no exceptions, don't take it up. I think you either get it or you don't, and if like me you don't you will be snookered. If I were you I would just focus on what you're at now, unless you are thinking that line for college, but if not just forget about it. I know two people that enjoy it? Yeah and they don't have a life..(I'm only joking by the way, actually good friends with one of them). just evaluate how smart you actually are (not what you want to be) and also how much time you can give it. good luck!

You are entitled to your opinion but I disagree. I don't think Chemistry is that difficult, once you have an interest in it and are willing to keep up with it as you go. As my teacher keeps saying, ''if you keep up with the work [which isn't a whole lot, really] you'll do really well, if you don't you'll have a lot to catch up on''. If you pay attention in class it's no harder than most other subjects. That and the fact the paper is usually really easy. They always ask the same or similar questions on each topic every year.

Also, if you are planning to do a science subject in college, it's a good one because apparently Chemistry is one of the harder ones to pick up if you don't have a Leaving Cert background in it.

David1994 · 13-06-2012 7:05pm

How is everyone sorted for this exam? I am ****ting it as I was expecting to get at least a B2 in Biology but after the exam will probably get a C2

Probably need to get a B in chemistry now

Mista · 13-06-2012 7:09pm

David1994 wrote: »

How is everyone sorted for this exam? I am ****ting it as I was expecting to get at least a B2 in Biology but after the exam will probably get a C2 Probably need to get a B in chemistry now

Pretty good actually... I love chemistry, and studied my ass off for it.. so happy we have another 5 whole days to study for it

David1994 · 14-06-2012 5:26pm

Ok could anyone give me a defined definition of le chateliers principle?
I gave one in the mocks from my revision book but didnt get full marks for it :P

Nazata · 14-06-2012 5:43pm

David1994 wrote: »

Ok could anyone give me a defined definition of le chateliers principle?
I gave one in the mocks from my revision book but didnt get full marks for it :P

When a system at equilibrium is subjected to a stress, the system will readjust itself so as to minimise the effects of the stress. (system = reversible reaction in this context)

Mista · 14-06-2012 5:49pm

So which experiments would ye think are likely to come up, apart from a titration and organic one?

David1994 · 14-06-2012 6:26pm

Mista wrote: »

So which experiments would ye think are likely to come up, apart from a titration and organic one?

Benzoic acid maybe... , volatile liquid,reaction between HCL and NaOH.
I know there are probably more likely ones but cannot think of them at the moment

finality · 14-06-2012 6:34pm

David1994 wrote: »

Benzoic acid maybe... , volatile liquid,reaction between HCL and NaOH.
I know there are probably more likely ones but cannot think of them at the moment

Are you talking about OL? the HCL/NaOH titration isn't on the HL course.

David1994 · 14-06-2012 6:41pm

finality wrote: »

Are you talking about OL? the HCL/NaOH titration isn't on the HL course.

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.

Hayezer · 14-06-2012 6:44pm

ETHANAL AND WINKLER!! I would cry with happiness if they came up, along with Volatile liquid or something :pac: If you can do good in the experiments, your laughin for the rest of the test. A normal equilibrium question with definitions, Haber-Bosch etc would be lovely aswell.

Pepperr · 14-06-2012 6:46pm

finality wrote: »

Are you talking about OL? the HCL/NaOH titration isn't on the HL course.

It is, under Fuels and Heats of reaction. Look over it!

David1994 · 14-06-2012 6:48pm

Pepperr wrote: »

It is, under Fuels and Heats of reaction. Look over it!

I knew it thank you for clarifying!

Ally7 · 14-06-2012 7:37pm

It's the heat of neutralisation of HCl and NaOH that's on, not the titration.

finality · 14-06-2012 7:39pm

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

ChemHickey · 14-06-2012 7:48pm

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

FaoiSin · 14-06-2012 7:52pm

ChemHickey wrote: »

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

And the year before :P

David1994 · 14-06-2012 8:38pm

What could be likely to come up?

eia340600 · 14-06-2012 8:42pm

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..

Monsieur Folie · 14-06-2012 8:45pm

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.

eia340600 · 14-06-2012 8:49pm

Monsieur Folie wrote: »

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

Good luck.

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???

Dicksboro_man · 14-06-2012 9:43pm

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..

definitely study organic and atomic theory.

Monsieur Folie · 14-06-2012 11:37pm

Dicksboro_man wrote: »

a good start would be to get off this..

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:

Mista · 15-06-2012 10:38am

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

Liveforrugby · 15-06-2012 12:23pm

"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?

Mista · 15-06-2012 12:52pm

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

Liveforrugby · 15-06-2012 1:15pm

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?

Mista · 15-06-2012 1:19pm

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?

ChemHickey · 15-06-2012 1:33pm

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.

leaveiton · 15-06-2012 1:37pm

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

Mista · 15-06-2012 1:38pm

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

Liveforrugby · 15-06-2012 1:44pm

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

ChemHickey · 15-06-2012 2:05pm

Liveforrugby wrote: »

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

Hopefully. they're simples.

ashalingable · 15-06-2012 2:56pm

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!

FaoiSin · 15-06-2012 3:22pm

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

Liveforrugby · 15-06-2012 4:39pm

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

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

Spattersonox · 15-06-2012 4:46pm

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

David1994 · 15-06-2012 4:55pm

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...

ei.sderob · 15-06-2012 10:06pm

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!!!

Geo10 · 15-06-2012 10:15pm

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!!

ChemHickey · 15-06-2012 10:17pm

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

Random_Person · 16-06-2012 12:33pm

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:

FaoiSin · 16-06-2012 12:37pm

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.

Random_Person · 16-06-2012 12:43pm

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?

**Chemistry...Before/After

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