OCR Salters F331 23/05/13 discussion

thanks - I get it now

Another question I had is when you are drawing a dot and cross diagram with a double bond, do we draw them as

x
o
x
o

OR as

xo
ox

does that make sense?

How are you guys revising for chemistry on thursday, reading storylines & then reading the book + pastpapers!

do you have any techiques?

how did you guys do on this exam before, if this is your retake?

anyone know what roughly you need to get 90 UMS on this paper? I have 77 but Im trying to get full marks as I find the A2 a bit harder.

it's annoying that you can't get 100 UMS for getting 100%

Resitting this, in yr 13. Everyone in year 12, please work hard now, you dont want the headache if resits.

As mentioned by others a2 coursework is so difficult and long and intensive. 52 pages handed in at Easter time

Anyway, here's hoping we all ace F331. the examiners are so pedantic:

adsorbed NOT adsorped

repel as far apart as possible NOT as much as possible

etc etc.

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General discussion on F331 resit exam coming up this Thursday.

I am feeling fairly confident about it. I guess my weakness is the calculations...

how did you find it?
I had mine today too

I think it went pretty well. I found the calculation rather easy and I usually don't.

How did you find it?
What did you find difficult?

Oh that's great
I agree
I stupidly messed up the thermal solubility question D:
I had no idea what to put for the biofuels
And the one about the assumptions of specific heat capacity WHAT WAS THAT?!

otherwise it was okay

The calculation was something like 50 * 4.18 * 5J

I don't think this is correct but I put:


I'm sure it wasn't too important as it was only 2 marks...

I put:

But I think you might get two marks

Oh lawwwd, I didn't realise how long the coursework was...

I guess the resits aren't helping you focus on A2. I just hope I don't under perform again.


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Exactly! But now I have a clear week to put my head down and revise f334 and f335, so no excuses for me eh.

If anyone in yr 12 is reading this, my advice is get your coursework completed by january, february at latest. Do not drag it any longer than that, otherwise it will plague your days and nights, when you should be revising. It is so attractive to delay doing it, but so not worth it.

Exactly! But now I have a clear week to put my head down and revise f334 and f335, so no excuses for me eh.

If anyone in yr 12 is reading this, my advice is get your coursework completed by january, february at latest. Do not drag it any longer than that, otherwise it will plague your days and nights, when you should be revising. It is so attractive to delay doing it, but so not worth it.

I'll keep this in mind

what is the coursework exactly?
Like is it analysing data/graphs/essays etc?
im not entirely sure

Lol I wish!

Basically you choose a topic, I chose kinetics of harcourt essen reaction.

You do research, with diagrams, what equations you need.

Then you devise the whole experiment yourself, including what concentrations you need, risk assessments, equipment.

You have to do a prelim and show how you changed your experiment based on that.

You carry out the experiment, its supposed to be something like 20hours of practical work, our college gave us 2 weeks of lesson time.

You draw up your results, and do a bunch of really difficult equations. Then draw graphs from the results, and explain your findings.

I honestly think I spent around 100hours on it, and thats no exaggeration. Every page needs thinking, its really intensive.

For my experiment, it was 3 parts, so I essentially had to do everything thrice (finding concentrations, method, equipment, graphs, manipulation of data etc) I changed the catalyst, changed the temperature and change the concentration of the reactants.

The one thing that was good about it:that feeling when you hand it in. More than 50 pages of hardwork hope I ace it