AQA A-level Chemistry Paper 3 HELP PLEASE

Watch
halil-yorgandji
Badges: 2
Rep:
?
#1
Report Thread starter 3 years ago
#1
I would just like to thank you in advance but has anyone got any advice when revising for paper 3, I don't know how to revise for it has anyone got any advice
0
reply
wannabe_lawyer
Badges: 11
Rep:
?
#2
Report 3 years ago
#2
I'm in the same predicament as you, any help is appreciated
0
reply
spidle
Badges: 12
Rep:
?
#3
Report 3 years ago
#3
After doing specimen papers, I think knowing how to do all the practicals is a good start, like filtration under reduced pressure, titrations, chromatography... and then the rest is on anything so revise anything you feel weakest on, since there probably isn't enough time to go through everything. Also, learn the answers to those annoying random practical questions like "Why is a minimum amount of solvent used?"
0
reply
ShadowSeeker
Badges: 10
Rep:
?
#4
Report 3 years ago
#4
(Original post by halil-yorgandji)
I would just like to thank you in advance but has anyone got any advice when revising for paper 3, I don't know how to revise for it has anyone got any advice
My thoughts on paper 3

It seems to me that a fair bit of year 12 content hasn’t come up – I wonder if all this will be in the multiple choice questions?

Year 12 content which doesn’t seem to have come up in papers 1 and 2 :

3.1.1 Atomic structure – electronic configuration
3.1.2 Amount of substance – yield calculations, atom economy, empirical formula
3.1.3 Bonding - no shapes, not that much on bonding and intermolecular forces
3.1.4 Energetics – this is a BIG topic and the only thing that came up was a definition. This topic has lots of practical, including the one where you extrapolate to find DT ( one of the core practicals )
3.1.5 Kinetics - nothing on Maxwell Boltzmann

3.2.1 Periodicity
3.2.3 Group 7(17), the halogens –reactions halides with conc sulfuric

3.3.2 Alkanes
3.3.3 Halogenoalkanes – came up but nothing on CFCs / ozone
3.3.4 Alkenes
3.3.5 Alcohols

Year 13 content which doesn’t seem to have come up in papers 1 and 2 :

3.1.8 Thermodynamics - no Born Haber cycles / DH solution – again this could be a practical question/ ionic model/ covalent character
3.1.11 Electrode potentials and electrochemical cells - fuel cells
3.1.12 Acids and bases – pH curves

3.2.5 Transition metals - shapes and isomers of complex ions, TM as catalysts

3.3.10 Aromatic chemistry - bonding in benzene delocalisation
3.3.13 Amino acids, proteins and DNA - protein structure, enzymes
3.3.15 Nuclear magnetic resonance spectroscopy - there was no proton spectra although there was a question about environments
3.3.16 Chromatography - no column or gas


Practical

There has been testing for ions and organic functional groups, TLC and some transition metal/ aqueous ions.

I think you will be asked to plot a graph for one of the practical questions – you have already been asked to draw a tangent on a given graph and also been asked to do a calculation on Ea. For data analysis something on energy or possibly rates, maybe pH curve but I think energy is the big missing topic

Remember that a graph is at least 4 marks – scale and plot the points properly! Label axes and, if it is an Ea graph – don’t forget that there is a x10n (usually x10-3) factor in your plotted numbers because of the ln 1/T ( in Kelvin)

Organic practicals – I think you will get a long question on one of them : I would focus on numbers 5 and 10: reflux, distillation, solvent extraction, melting point apparatus



Good luck everyone
4
reply
JustWondering98
Badges: 7
Rep:
?
#5
Report 3 years ago
#5
for tomorrows exam do we need to know how to name secondary and tertiary amines? :')
0
reply
gooner1010
Badges: 6
Rep:
?
#6
Report 3 years ago
#6
(Original post by JustWondering98)
for tomorrows exam do we need to know how to name secondary and tertiary amines? :'
yes
0
reply
gooner1010
Badges: 6
Rep:
?
#7
Report 3 years ago
#7
Practice doing EMPA's and ISA's
0
reply
wannabe_lawyer
Badges: 11
Rep:
?
#8
Report 3 years ago
#8
Do we need to know the synthesis of aspirin?
0
reply
Uplink
Badges: 10
Rep:
?
#9
Report 2 years ago
#9
Does anyone have the specimen papers?
0
reply
gödel
Badges: 10
Rep:
?
#10
Report 2 years ago
#10
(Original post by Uplink)
Does anyone have the specimen papers?
http://www.aqa.org.uk/subjects/scien...ment-resources
0
reply
21mig0s
Badges: 3
Rep:
?
#11
Report 2 years ago
#11
(Original post by Uplink)
Does anyone have the specimen papers?
Paper-
https://drive.google.com/file/d/1FtG...ew?usp=sharing

Markscheme -https://drive.google.com/file/d/1_ME3wOahpgOW4NnacsoGDyLYiGPHM3B W/view?usp=sharing
0
reply
rexs2000
Badges: 13
Rep:
?
#12
Report 2 years ago
#12
Help
I dont understand 2017 paper Q18 mcq
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

How are you feeling ahead of results day?

Very Confident (26)
8.47%
Confident (39)
12.7%
Indifferent (49)
15.96%
Unsure (79)
25.73%
Worried (114)
37.13%

Watched Threads

View All