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OCR F324-June 2013 Chemistry

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Reply 1080

otrivine

anyone want to revise?

Reply 1081

Zzzyax

I think speed is very important its good your finishing the papers so quickly with high accuracy. Ensure when you do the questions to answer them carefully trying not to make a mistake but quickly aswell, so when you finished the paper in (say) an hour you would have 30 minutes to check over your answers (this is the best case scenario). Its better to semi-"rush" (while being carefully and checking your answers) and finish the paper quickly so you have a crazy amount of time to go over your answers/question rather to finish the whole paper in exactly 1hour 30mins which leaves no time to check anything.
i think this works for most , put for people who struggle with the subject and will make lots of mistakes i don't advice it...

Reply 1082

otrivine

Original post by Zzzyax

Hi want to revise :smile:

Reply 1083

Blue_Birdie

it's our last question in our controlled assessment in ocr gateway

Reply 1084

Blue_Birdie

same I really need to start

Reply 1085

Gulzar

Original post by jannattulfirdaus

same I really need to start

Oh God

Got a D in this unit due to lack of preparation...I'm getting serious De Ja Vu here!
Are u resitting?

Reply 1086

otrivine

Original post by Gulzar

Oh God

Got a D in this unit due to lack of preparation...I'm getting serious De Ja Vu here!
Are u resitting?

Hi long time how are u

want to revise

Reply 1087

Better

Original post by Gulzar

Oh God

Got a D in this unit due to lack of preparation...I'm getting serious De Ja Vu here!
Are u resitting?

Lol.

De Ja Vu...you might want to Prioritise what ever is your weakest Subject now.

Chem 5 is actually much easier than Chem 4 but it takes more understanding rather than just Memorisation/Consistent work like in Chem 4.

There really isn't much time. You can do it though if you start now bro. You'll really have to put in the hours though. I've been up at 6AM for the last 2 weeks everyday. I really want A*s and not A's.

Reply 1088

Gulzar

Original post by Better

Wow that is really motivational...Im gonna get up at 6am from now on...
Do you have any tips for unit 4? I mean theres a lot to remember but are there any good sites or revision tips for this kind of chemistry?
Oh and for unit 5 there is more maths than understanding and memorising...the only thing that I hate is remembering all those colours for the transition metal ions...there are loads :frown:

yh ok

Original post by Gulzar

Chem 5 and Colours:
Overview: Do a ton of questions.

Chem 4 - My Teacher gave me an OCR Revision Guide which is a condensed version of the Text Book - thank god. I will start going through that today the whole of Unit 4 is spread across 34 Pages - Lol. So I will really enjoy going through it compared to the real text book. Actually looking forward to Recapping now so in a very good mood.

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Waking Up Early
Overview: Do whatever feels right for you. When you are in the Exam, its just you vs the Exam and everyone else in the UK. No one can help you.

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Final Note: Why I am no longer taking notes
Summary: The better alternative - question sheets

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Reply 1091

MathsNerd1

Original post by Better

Spoiler

This is intense, lets go and nail these exams! :biggrin:

I also get up at 6 each morning as I have to get to school for 7:30 for reasons, also with your question sheets did you make them yourself or find them from somewhere? If the latter is correct then could you send them to me please as I'm slowly running out of questions to do :-/

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Reply 1092

Lilmzbest

Original post by Better

Expand

Waking Up Early
Overview: Do whatever feels right for you. When you are in the Exam, its just you vs the Exam and everyone else in the UK. No one can help you.

Expand

Final Note: Why I am no longer taking notes
Summary: The better alternative - question sheets

Expand

Woah you do a lot :biggrin:

Lol i wake up at 6 every morning too, but never get more than an hour to work :tongue:

Snap on the question sheets, i've started doing that for physics and i can finally actually answer questions :biggrin:

Reply 1093

Zaphod77

Original post by Better

Expand

Waking Up Early
Overview: Do whatever feels right for you. When you are in the Exam, its just you vs the Exam and everyone else in the UK. No one can help you.

Expand

Final Note: Why I am no longer taking notes
Summary: The better alternative - question sheets

Expand

Well done on your motivation and improvement! D1 was a pain of a module :tongue:

But I think notes benefit some people, me included - I agree questions are good for testing your knowledge, but to learn the knowledge first I have to do notes. Each to their own I suppose, but notes ensure my understanding to myself, and by doing them I remember odd facts that perhaps don't always come up in the questions. I'm not criticising, I'm just saying that I think that different people have different ways of revising :smile:

Reply 1094

Better

Original post by Lilmzbest

.....

Limz I am really glad you said that. Physics is my Weakest by Far. So really glad that I'm not the only one who uses like Question Sheets! Good effort if you can do the questions now - keep it up!

Original post by MathsNerd1

....

MathsNerd haha erm no its just a question sheet I made myself, here is an Example, but I generally keep it all on my PC and update it as I find out I don't get stuff; so it's not complete until I finish all the papers. As someone who was great at the Humanities and used take alot of notes this is a real shock to me how differently you have to revise for the Sciences. Surprisingly you don't forget stuff.

Here is an Example. I am not sure how much it will help because it is tailored to me:

Mod 3 Questions Chem 5.docx (27.7 KB, 0 views)

Speaking of not getting stuff: Please can anyone Explain how to work out Molecular Formula from Masses. I am not sure, it was on the Paper I handed in, and I just skipped it.

They gave you Mass of Compound then the Mass of some elements in it and asked you to work out the molecular formula.

I need this for Chem 4 too so if anyone can help I am really rusty on AS Stuff.

(edited 10 years ago)

Mod 3 Questions Chem 5.docx28.3KB

Reply 1095

MathsNerd1

Original post by Better

Spoiler

Very nice and okay that makes sense then, I'm just repeating unit 1 too which is in 2 weeks today so I've hammered through 20 questions from the book that used to be exam type ones, woo!

Also to help you out have they given you the percentages of the masses in the compound? If so then you just work out the empirical formula and scale it back up using the molar mass provided.

Okay, just read the info you've given and can you remember how to work out the empirical formula?

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Reply 1096

Better

Original post by MathsNerd1

Okay, just read the info you've given and can you remember how to work out the empirical formula?

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I'm not sure how to explain it, it's from AS.

I remember you have to like divide by the lowest mass then multiply by something.

Reply 1097

MathsNerd1

Original post by Better

I'm not sure how to explain it, it's from AS.

I remember you have to like divide by the lowest mass then multiply by something.

Well you're in luck as I'm doing unit 1 again and what you do is find out the mole ratios of your elements by dividing your mass by the molar mass, then you divide them all by the one with the smallest amount of moles. This gives the empirical formula then you work out the molar mass of the empirical formula and compare with your mass of compound, then it's just a simple scaling to get the molecular formula.

Hope this helps :smile:

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Reply 1098

Gulzar

Original post by Better

Expand

Waking Up Early
Overview: Do whatever feels right for you. When you are in the Exam, its just you vs the Exam and everyone else in the UK. No one can help you.

Expand