Official OCR- AS Chemistry F321 January 2013 (revision, questions) Watch

spiderman2019a
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Hia everyone,

This thread is dedicated to Chemistry exam in January 2013.
Jump in, discuss or ask questions. From time to time I will be adding my REVISION RESOURCES .

So to start off (some great tips):

1. Learn all the DEFINITIONS by heart <3

2. Practice past papers

3. make sure you give yourself breaks

4. last but not the least, practice calculation questions and learn formulas


PAST PAPERS:

http://www.ocr.org.uk/i-want-to/prep...papers-finder/

subject:science
type:AS/A Level GCE
Qualification: Chemistry A- H034, H434
Session (optional): for you to choose

Some GREAT WEbsites:

1. http://www.s-cool.co.uk/a-level/chemistry

selective stuff you need to know

2. http://www.docbrown.info/page19/OCRchemistryAS.htm

look under the grey title:

''Summary of OCR GCE Advanced Subsidiary Chemistry AS Units and Contents Links''

''Unit F321: Atoms, Bonds and Groups''

3. http://www.a-levelchemistry.co.uk/OC...resources.html

good stuff here too

4. http://www.creative-chemistry.org.uk...ule1/index.htm

some worksheets to work on

5. http://getrevising.co.uk/members/emily1854

You will need to login for this, I just uploaded them today:P

Make sure you go through these for revision to ace your exams :P

That is it for now

Let me know if you need any help and also help me continue this thread

Good Luck

BEST NOTES YOU WILL EVER FIND (SEE ATTACHMENT)
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spiderman2019a
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Any questions?? Anyone??
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Fruity0050
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Hi there!
You see, I have a OCR Salters Chemistry AS level question about the coursework we must complete. I've been told it is related to 'Enthalpy Changes' and have been asked to look at the first two experiments in the Developing Fuels booklet (One where we had fuel and a calorimeter involved and the other zinc and a polystyrene cup ).
I'm stressing out about what I have to revise exactly because I've looked back at those experiments and, to be completely honest, I'm kind of stuck as far as preparing for it goes!

If you have any tips or ideas about my experiment, pleeaassseee help!

Also, what sort of things do you think I should revise for the 'written paper' part of the coursework.

-An extremely grateful stress-head.
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spiderman2019a
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(Original post by Fruity0050)
Hi there!
You see, I have a OCR Salters Chemistry AS level question about the coursework we must complete. I've been told it is related to 'Enthalpy Changes' and have been asked to look at the first two experiments in the Developing Fuels booklet (One where we had fuel and a calorimeter involved and the other zinc and a polystyrene cup ).
I'm stressing out about what I have to revise exactly because I've looked back at those experiments and, to be completely honest, I'm kind of stuck as far as preparing for it goes!

If you have any tips or ideas about my experiment, pleeaassseee help!

Also, what sort of things do you think I should revise for the 'written paper' part of the coursework.

-An extremely grateful stress-head.
Hi Fruity, I am sorry but I don't know a single thing about what you are talking (I am doing OCR A), the best person to ask about his would be your TEACHER and your class mates (who I am sure would be doing the same thing). Go and ask them what they are doing and any help because I am sorry but I don't know a single thing about enthalpy change :P

The other thing I had to say was that i did a bit of research for you
and found these:

Again they may or may not help !


http://store.aqa.org.uk/qual/gce/pdf...-TRB-PSA04.PDF

http://www.webchem.net/notes/how_far...f_enthalpy.htm

And as for what you need to know :

1. definitions
2. precautions
3. reactions
4. calculations
5. and other stuff :P (which you have to spot because I don't know about your experiment

I hope this helps
xxx

EDIT: I got a really good powerpoint slide
but I don't know how to attach
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KatiexZoe
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I've got my chemistry assessed practical exam tomorrow and i'm doing OCR chemistry A. it's going to be a titration, but do you have any tips of getting the higher grades? :confused:
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spiderman2019a
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(Original post by KatiexZoe)
I've got my chemistry assessed practical exam tomorrow and i'm doing OCR chemistry A. it's going to be a titration, but do you have any tips of getting the higher grades? :confused:
Eeee! sorry if its a bit late

bUt a few things if you haven't done it yet

1. wash the burette with acid before starting (a really good practice)
2. so as with the pipette
3. perform it really carefully
4. do the calculations carefully too
5. Make sure to keep it swirling
6. wash the rod and beaker used for preparing standard solution into the flask so you don't loose any of the products


Hope this helps and here a are a few links worth watching before the task !

Step 1: http://www.youtube.com/watch?v=AU6ozDDlMTE

Step 2: http://www.youtube.com/watch?v=MuKh3...feature=relmfu

Step 3: http://www.youtube.com/watch?v=DKRQ9...feature=relmfu

Step 4: http://www.youtube.com/watch?v=iiedQ...feature=relmfu

Good Luck
xxx
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Fruity0050
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(Original post by librastar28)
Hi Fruity, I am sorry but I don't know a single thing about what you are talking (I am doing OCR A), the best person to ask about his would be your TEACHER and your class mates (who I am sure would be doing the same thing). Go and ask them what they are doing and any help because I am sorry but I don't know a single thing about enthalpy change :P

The other thing I had to say was that i did a bit of research for you
and found these:

Again they may or may not help !


http://store.aqa.org.uk/qual/gce/pdf...-TRB-PSA04.PDF

http://www.webchem.net/notes/how_far...f_enthalpy.htm

And as for what you need to know :

1. definitions
2. precautions
3. reactions
4. calculations
5. and other stuff :P (which you have to spot because I don't know about your experiment

I hope this helps
xxx

EDIT: I got a really good powerpoint slide
but I don't know how to attach
Awww! Thank you! Haha - no, it really did help! Oh no - Powerpoint! Would the attachment sign thingymawotsit work!? Another thing is I know you do OCR, but just incase there is some overlap, how would you prepare for ISA type (experiment) questions? You know the whole reliability-validity stuff Cheers a million! xxxx
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spiderman2019a
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(Original post by librastar28)
Eeee! sorry if its a bit late

bUt a few things if you haven't done it yet

1. wash the burette with acid before starting (a really good practice)
2. so as with the pipette
3. perform it really carefully
4. do the calculations carefully too
5. Make sure to keep it swirling
6. wash the rod and beaker used for preparing standard solution into the flask so you don't loose any of the products


Hope this helps and here a are a few links worth watching before the task !

Step 1: http://www.youtube.com/watch?v=AU6ozDDlMTE

Step 2: http://www.youtube.com/watch?v=MuKh3...feature=relmfu

Step 3: http://www.youtube.com/watch?v=DKRQ9...feature=relmfu

Step 4: http://www.youtube.com/watch?v=iiedQ...feature=relmfu

Good Luck
xxx

(Original post by Fruity0050)
Awww! Thank you! Haha - no, it really did help! Oh no - Powerpoint! Would the attachment sign thingymawotsit work!? Another thing is I know you do OCR, but just incase there is some overlap, how would you prepare for ISA type (experiment) questions? You know the whole reliability-validity stuff Cheers a million! xxxx
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stateofdreaming
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Aw this is the perfect thread, you're beautiful for creating it. I'm bad at the calculations for the titrations, do we have to find the concentration, water of crystallisation or relative mass of the solution? I get so confused, help!
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spiderman2019a
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(Original post by stateofdreaming)
Aw this is the perfect thread, you're beautiful for creating it. I'm bad at the calculations for the titrations, do we have to find the concentration, water of crystallisation or relative mass of the solution? I get so confused, help!
arghhh I just wrote a comprehensive answer but accidentally closed it
Anyway,

1. the will tell you what to do like find moles , find the conc. in step by step order however you need to learn the formulas

2. Even if your results are wrong you would be awarded marks for using the correct formula and method

3. I have my task as a hard copy This not what we got but this is also a specimen


Titration practical


http://www.ocr.org.uk/images/75090-u...k-specimen.pdf

btw when is your task mine is next week :cool:

P.S i'm sorry, couldn't elaborate it much!


Hope this helps
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Loiks94
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Hey has anyone done any practicals so far then? Or is tomorrow your first one?
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spiderman2019a
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(Original post by Loiks94)
Hey has anyone done any practicals so far then? Or is tomorrow your first one?
When is yours?
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Loiks94
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(Original post by librastar28)
When is yours?
Well I've done a couple already.
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spiderman2019a
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good
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Loiks94
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(Original post by librastar28)
good
what about you?
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spiderman2019a
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I have it next week the qualitative and quantitative and then the week following the last one

Btw i have my task practice for qualitative one tomorrow

How did it go??
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Loiks94
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(Original post by librastar28)
I have it next week the qualitative and quantitative and then the week following the last one

Btw i have my task practice for qualitative one tomorrow

How did it go??
Well there is 3 different ones so I'm not sure what ones you are doing however ones that I did were titrates 15/15 and 14/15 pm if you need any tips
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suzan0101
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Hey
I'm doing as chem and I'm finding it hard to memorise some if the things. Any advice?


This was posted from The Student Room's iPhone/iPad App
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spiderman2019a
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(Original post by Loiks94)
Well there is 3 different ones so I'm not sure what ones you are doing however ones that I did were titrates 15/15 and 14/15 pm if you need any tips

1. Qualitative is titration

2. Quantitative is about 4 solution or whatever

3. EValuative i don't know yet :P
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Loiks94
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(Original post by librastar28)
1. Qualitative is titration

2. Quantitative is about 4 solution or whatever

3. EValuative i don't know yet :P
Yes and each band has 3 tests you could do, depending on how well you do your first ones you may or may not have to do the second tests from each bands.
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