Year 12s: what will be the first way you research your future options? >>

AQA CHEM1 Fri 21 May

Scroll to see replies

Reply 200

Miss.R

Master.K

No way!

Higher/lower?

Reply 201

Sparkly-Star

Master.K

Lool.

I'm resisting the revision thread until 9th June, the i'll be back.

I'm feeling confident, it's just that I hate the drawings....

Are we allowed to discuss this paper already?

Reply 202

_Andrew_

Master.K

No way!

They couldn't really be lower. It was 83% for an A in Jan.

Reply 203

?!master?!mini?!

Stirlo

They do, I noticed how they left chlorine off the graph for period 3 in order to try and make people fall into the trap of putting fluorine for the highest ionisation energy of period 2.

Overall found the paper alright, with section B being quite easy, only found a couple of the first sub questions challenging, so hope I've done better this time around :smile:

AQAAAAAAAAAAAAAA damn you!!!!!

section B was actually alright. When they asked for the fundamental particles, did you put the three fundamental particles including electrons, or just two??

Reply 204

_Andrew_

Sparkly-Star

Are we allowed to discuss this paper already?

Yeah

Reply 205

Digit_Five

Master.K

No way!

Generally,
40%: E
50%: D
60%: C
70%: B
80%: A

Ofc, the boundaries do change, but I don't think they change by much.
Does anyone know how marks translate into UMS...?

Reply 206

CHEM1STRY

?!master?!mini?!

AQAAAAAAAAAAAAAA damn you!!!!!

section B was actually alright. When they asked for the fundamental particles, did you put the three fundamental particles including electrons, or just two??

All 3

Reply 207

?!master?!mini?!

_Andrew_

They couldn't really be lower. It was 83% for an A in Jan.

Last year June, was 54/70, Jan 2010 was 58 as it was a piss easy paper.

Hopefully its somewhere around 54

Reply 208

Goldfishy

I thought the paper was hard compared to some past papers I did recently - too many off-syllabus questions :s-smilie:

Some answers I got (these are by no means correct, although some coincide with what others have got, just browse a few pages):

11.1dm^-3 on the gas equation question

van der Waals' forces on IMF force for CCl2F2 (Read a few answers on here varied with dipole-dipole. due to the molecule shape, don't the dipole's cancel?)

54.3% for a %age question

0.938moldm^-3 for conc of HCl acid

Sulphur dioxide as gas X, and I gave some very strange answers for the mesh thing...still irritated as to why they put those type of questions on... I believe the answer to the mesh ones are acid-base/neutralisation type reaction and increased surface area? (Instead of increased SA, I put to still allow non-contaminated gas through, can anyone say if this is still ok?)

Hope this helps if you see some familiar answers. Would like to know if other ppl got similar! 2 down, loads to go... :woo:

Reply 209

Unknown-User

Haruhi

I think you would still get the mark as long as you said spark/heat/temp enough for reaction 8D

It was 2 marks, did you write the equation?

Ah I actually thought when I was on that question that I should write the equation just in case.....and for some reason, when I finished writing out the answer, I didn't write the equation out :facepalm2:

jak67m

yeh i wrote about how the engine heats up and it gives enough energry for the nitrogen and oxygen in the air to react??? would that b correct?

Not sure

Thats what I wrote, but as Haruhi said before, I think we may get one mark for that

Reply 210

?!master?!mini?!

This unit 1 is nothing compared to what we're going to get for Unit 2 :facepalm:

Reply 211

acm345

_Andrew_

I'm guessing around 80% for an A

no way! That'd make it easier than last year

Reply 212

Stirlo

?!master?!mini?!

AQAAAAAAAAAAAAAA damn you!!!!!

section B was actually alright. When they asked for the fundamental particles, did you put the three fundamental particles including electrons, or just two??

I included the electrons, was a bit unsure about that, think it may have been another trick with them asking about mass number

Reply 213

CHEM1STRY

Goldfishy

I thought the paper was hard compared to some past papers I did recently - too many off-syllabus questions :s-smilie:

Some answers I got (these are by no means correct, although some coincide with what others have got, just browse a few pages):

11.3dm^-3 on the gas equation question

van der Waals' forces on IMF force for CCl2F2 (Read a few answers on here varied with dipole-dipole. due to the molecule shape, don't the dipole's cancel?)

54.3% for a %age question

0.938moldm^-3 for conc of HCl acid

Sulphur dioxide as gas X, and I gave some very strange answers for the mesh thing...still irritated as to why they put those type of questions on... I believe the answer to the mesh ones are acid-base/neutralisation type reaction and increased surface area? (Instead of increased SA, I put to still allow non-contaminated gas through, can anyone say if this is still ok?)

Hope this helps if you see some familiar answers. Would like to know if other ppl got similar! 2 down, loads to go... :woo:

Erm your answers for the calcs are right except the first one, it is 11.1dm3 (note that the answer was 11.13 something, maybe you misread it). The force is dipole dipole because the dipoles of CF are larger than CCl so they 'outweigh' it.

The only answer for the mesh is S.A. :frown:

Reply 214

Stirlo

Goldfishy

Sulphur dioxide as gas X, and I gave some very strange answers for the mesh thing...still irritated as to why they put those type of questions on... I believe the answer to the mesh ones are acid-base/neutralisation type reaction and increased surface area? (Instead of increased SA, I put to still allow non-contaminated gas through, can anyone say if this is still ok?)

I put increased surface area for that one, which is quite sensible i think. Had a guess with the 2nd part though about why they react? I think it was. In the end i think i put something about it making gypsum xD

Reply 215

Master.K

Sparkly-Star

Are we allowed to discuss this paper already?

Yep we can...how did you find it?

Reply 216

Miss.R

Goldfishy

I thought the paper was hard compared to some past papers I did recently - too many off-syllabus questions :s-smilie:

Some answers I got (these are by no means correct, although some coincide with what others have got, just browse a few pages):

11.3dm^-3 on the gas equation question
yes i got this

van der Waals' forces on IMF force for CCl2F2 (Read a few answers on here varied with dipole-dipole. due to the molecule shape, don't the dipole's cancel?)yeah i got this

54.3% for a %age questionsame

0.938moldm^-3 for conc of HCl acid
i think i got this.. can't remember, but thereabouts
Sulphur dioxide as gas X, and I gave some very strange answers for the mesh thing...still irritated as to why they put those type of questions on... I believe the answer to the mesh ones are acid-base/neutralisation type reaction and increased surface area? (Instead of increased SA, I put to still allow non-contaminated gas through, can anyone say if this is still ok?)got SO2 but not the explanation i wrote something stupid for the explanation

N2O5 for the empircal formular of the nitrogen oxidesame

Hope this helps if you see some familiar answers. Would like to know if other ppl got similar! 2 down, loads to go... :woo:

....

Reply 217

Master.K

Miss.R

Higher/lower?

Lower obviously.... :cry2:

*He prays to God*

Reply 218

CHEM1STRY

It is going to be lower, but it wasn't too difficult.

Reply 219

Goldfishy

CHEM1STRY

Typo on the 11.1 - did definitely get that *phew*, changed it now. I'm a little gutted on the mesh one as it seems a but obvious, but for the vdWs' I'm still not convinced; there are two C-F bonds and the shape is tetrahedral so surely it still cancels slightly? And also the electronegativity of Cl isn't that far off of F's (3.5 to 4.0)? Tbh though, I scribbled out dipole-dipole and then wrote vdWs' :mad: