Aqa chemistry as level 2016 predictions

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Could someone list all the Physical chemistry practicals?

These are the only ones I can think of:

Titration
Standard solution
Calirometry (temp change)

Reply 61

boredom07

Original post by voltz

Could someone list all the Physical chemistry practicals?

These are the only ones I can think of:

Titration
Standard solution
Calirometry (temp change)

Yeah, they are the required physical chemistry practicals but just as a reminder you also have the required inorganic chemistry practical which involves the tests for anions and cations.
http://www.aqa.org.uk/subjects/science/as-and-a-level/chemistry-7404-7405/as-practical-assessment
(Required practicals 1, 2 and 4 may be assessed)

Reply 62

Solar5

Specification says all of this is going to be on paper 1

Paper 1
3.1.1 Atomic structure
3.1.2 Amount of substance
3.1.3 Bonding
3.1.4 Energetics
3.1.6 Chemical equilibria, Le Chatelier’s principle and Kc
3.1.7 Oxidation, reduction and redox equations
3.2.1 Periodicity
3.2.2 Group 2, the alkaline earth metals
3.2.3 Group 7(17), the halogens

Reply 63

voltz

How did you guys do on the Physical and inorganic spec paper? If you dont mind sharing your marks that you got on it

Reply 64

Sniperdon227

Is this for the new spec or old?

Reply 65

man i

Original post by Sniperdon227

Is this for the new spec or old?

this must be the new spec, im doing the old spec exam and no way in hell would le chatelliers pricinciple be in chem1

Reply 66

Solar5

"Written papers will assess knowledge and understanding of these, and the skills exemplified within each practical"

1 Make up a volumetric solution and carry out a simple acid–base titration

2 Measurement of an enthalpy change

3 Investigation of how the rate of a reaction changes with temperature

4 Carry out simple test-tube reactions to identify:

•

cations – Group 2, NH₄⁺

•

anions – Group 7 (halide ions), OH^–, CO₃^2–, SO₄^2–

5 Distillation of a product from a reaction

6 Tests for alcohol, aldehyde, alkene and carboxylic acid

Reply 67

swagdaddy123

Anyone got any good sources of revision for the required practicals like videos or a website? I don't remember doing the effect of temperature on the rate of reaction

Reply 68

zoedhin

Hi.. i got a C last year for chem unit 1 but say if something happens tomorrow and i do worse does the C still count - does highest mark go forward.

Reply 69

Solar5

Original post by swagdaddy123

Anyone got any good sources of revision for the required practicals like videos or a website? I don't remember doing the effect of temperature on the rate of reaction

https://www.youtube.com/watch?v=2iqUB_N-uzw

https://www.youtube.com/watch?v=3Ck5JJwxXC4

Reply 70

Akihiko Kyaba

Anyone have the specimen set 2 paper 1 they could send me?

Reply 71

semise

Original post by Solar5

https://www.youtube.com/watch?v=2iqUB_N-uzw

https://www.youtube.com/watch?v=3Ck5JJwxXC4

Thanks so much for these vids!

Reply 72

voltz

Original post by Akihiko Kyaba

Anyone have the specimen set 2 paper 1 they could send me?

Could anyone DM is me aswell please

Reply 73

srayogn

Can someone please have a look at question 5 :smile:

Topic 2 Assessed Homework.docx42.2KB

Reply 74

Shadowshock118

Original post by srayogn

Can someone please have a look at question 5 :smile:

So for Q5.) You have to find out the number of moles of the original solution, by doing n=c x v which is n=12 x 0.01 = 0.12 mol

You then input this value into the second reaction
0.12 = 0.250 x v
Because you want 0.250 moldm-3 solution
0.48dm^3=v
so multiply by 1000 to get cm^3
480 cm^3
But you started with 10.0cm^3, so 480-10= 470cm^3
Hope that helps!

Reply 75

srayogn