A-level Chemistry Revision Squad!

Is doing every past paper multiple times a bad idea or not?
I've currently done 7 past papers so far in chronological order for my Chemistry Unit 1 resit, and I've only done them once.

Yep it's a good idea, hopefully you should see progress every time you repeat the paper (keep a tab on what marks you get).
Highlight the ones your unsure about and focus on them. :smile:

Reply 521

nomophobia

13

Can someone here help someone who is hopeless at chemistry?

I got a C in a chemistry mock I did 2 months ago,and since then I'd worked so hard, I've been memorising the content and practising past paper questions and multiple choice questions but I did the specimen mock last week and I got a D!

Am I just not good at chemistry?

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Reply 522

MiracleLeaf

20

Original post by alow

Nope. The 2 is redundant.

You don't call ethanol "ethan-1-ol" do you?

Yes, sometimes...

Reply 523

Aimen.

7

Original post by nomophobia

Can someone here help someone who is hopeless at chemistry?

I got a C in a chemistry mock I did 2 months ago,and since then I'd worked so hard, I've been memorising the content and practising past paper questions and multiple choice questions but I did the specimen mock last week and I got a D!

Am I just not good at chemistry?

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It's not so! Specimens are crap tbh, real pprs are not like those so don't worry and keep working hard, revise past papers the night before exams and read your revision guide a week before exams.
The best way to do past paper is that whenever you get stuck on a question, leave it over there and open your book and read the topic thoroughly and then answer your question!
Trust me you'll learn much faster than you expect! x)

Reply 524

Cobalt_

21

Original post by nomophobia

Can someone here help someone who is hopeless at chemistry?

I got a C in a chemistry mock I did 2 months ago,and since then I'd worked so hard, I've been memorising the content and practising past paper questions and multiple choice questions but I did the specimen mock last week and I got a D!

Am I just not good at chemistry?

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I got a U in my Chemistry AS Mock. Partly because I didnt put the time into understanding chemistry and was lazy when it came to revision.
Thought Chemistry wasnt cut out for me.

Ended up getting an A* in Chemistry at Alevel.
Now studying it at a very well respected University, in my 2nd year and I'm on a solid first. On track to do my PhD (hopefully)

If you work hard and put the time in you will surprise yourself.
However putting the time in is key, you must put the hours in otherwise you'll be disappointed when it comes to results day.

Good luck with everything.

Reply 525

Laconix

3

Original post by Science_help

Lets see who gets this right.
No using google or textbook btw.

What temperature does diamond melt at ? nearest 100

3700 I think

I think it's vapourised at 4800

Reply 526

nomophobia

13

Original post by Aimen.

It's not so! Specimens are crap tbh, real pprs are not like those so don't worry and keep working hard, revise past papers the night before exams and read your revision guide a week before exams.
The best way to do past paper is that whenever you get stuck on a question, leave it over there and open your book and read the topic thoroughly and then answer your question!
Trust me you'll learn much faster than you expect! x)

So I've been told but getting a D isn't doing much for my confidence, my grades have plummeted recently and chemistry was the last straw because I had genuinely worked hard for it unlike my other subjects and I still failed :colonhash:

And that's actually a great idea! I never thought to do that, will be doing that later on this week

Thanks!

Original post by Cobalt_

I got a U in my Chemistry AS Mock. Partly because I didnt put the time into understanding chemistry and was lazy when it came to revision.
Thought Chemistry wasnt cut out for me.

Ended up getting an A* in Chemistry at Alevel.
Now studying it at a very well respected University, in my 2nd year and I'm on a solid first. On track to do my PhD (hopefully)

If you work hard and put the time in you will surprise yourself.
However putting the time in is key, you must put the hours in otherwise you'll be disappointed when it comes to results day.

Good luck with everything.

Wow, I would never have thought that. I get what you mean about needing to put in the hours but I'm really struggling to balance my time because I'm currently putting in all my hours for my history and maths exams this week and it will be the same next week. :s-smilie:

Thank you! Although I've lost all faith in myself by now.

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Reply 527

thebrahmabull

14

In a question it asks 'suggest a suitable temperature range over which to collect the ester'. in the data the boiling temperature of the ester is given as 142C. Heres what the markscheme says:

i am confused what to write as the answer. Should 140-144c be ok? Or should i write both start and end as a range like exactly written in the markscheme . i am also unsure what they mean by reject 'single temperature'

Reply 528

alow

19

Original post by MiracleLeaf

Yes, sometimes...

Well that's incorrect. The whole point of naming a compound is to unambiguously express what its structure is in the most concise form.

Reply 529

PlayerBB

17

Original post by thebrahmabull

In a question it asks 'suggest a suitable temperature range over which to collect the ester'. in the data the boiling temperature of the ester is given as 142C. Heres what the markscheme says:

i am confused what to write as the answer. Should 140-144c be ok? Or should i write both start and end as a range like exactly written in the markscheme . i am also unsure what they mean by reject 'single temperature'

Before purification, the product was less pure, so the boiling temperature will be lower by maximum 10 degrees sk from 185 to 201

And after purification, the product is purer so the boiling temperature will be higher and lower than the sharp b.p by max 2 degrees so from 199-201

By single temperatures, he means, don't pit likr 185 put a range e.g from 185 to 201
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(edited 7 years ago)

Reply 530

CaliSurf'

1

Anyone got the F324 / F325 OCR Chemistry past papers/MS from June 2015? If so, could you please send them?
Thanks in return :smile:

Reply 531

shiney101

10

Can someone please help me work out the splitting pattern for 2,3 dichlorobutane?

It says that it should be one quartet and one doublet...Can someone please explain this.
I understand that there will only be two splitting patterns since there are only two different environments, but I don't get how to work out the patterns.

Thanks

Reply 532

bioloves

8

I have ocr 2015 f324
Will swap for Ocr f325 paper 😀😀😀😀

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Reply 533

bioloves

8

Pm me with ocr f325 paper
Please send it and hopefully you will get an a* !!
Please :smile:

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Reply 534

Glavien

11

Has anyone got the June 2015 AQA unit 4 and unit 5 papers?

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Reply 535

alyoan tariq

4

Original post by FemaleBo55

I was looking for a Chemistry Revision Thread but there were not any so I decided to make one :wink:

Feel free to ask questions regardless of your exam board (because chemistry is chesmitry), and we'll all be happy to answer
hey question here........
Compound X changes the colour of warm acidified sodium dichromate(VI) from orange to green.
1 mol of X reacts with 2mol of HCN in the presence of KCN.
What could X be?
A)CH3CH2CH2CHO
B)CH3COCH2COCH3
C)H2C=CHCH2CHO
D)OHCCH2CH2CHO

Reply 536

IamJuggernaut

12

I have ocr 2015 paper and mark scheme for all chemistry units so pm me if u need them people