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AQA CHM 5 and 6

So how was it for everyone?

I found module 5 pretty good but the multiple choice in 6 was a bit hard. From question 20 to 40 i seemed to have alot of B's.

Reply 1

CatexW

13

One or two tricky bits in Mod 5 and made quite a few guesses in Mod 6. Overall ok I guess...

Reply 2

HarisF1

Pretty difficult papers, considering the fact that I didn't really get enough revision done.

Reply 3

blue_boy

yeah i got straight Bs from somethin like 21 - 26

I wasnt sure about the maxwell boltzman one on unit 6, i thought none of them were right :s

Reply 4

Lu-x

16

I got quite a few B's at one point, yeah

Reply 5

beckiestar

I think CHM 5 was ok, a few tricky bits. CHM6 was predictably horrible - i hate that paper!! Oh well! What's done is done!

Reply 6

emma_wemma

I got loads of B's too - throughout the whole paper though, mostly in Question 20 onwards.

CHM5 was alright, although I put SO3 instead if SO2 in redox reaction and completely made up the test to distignuish FeCL3 and CuCL2... now I know what it is! lol

Emma
x

Reply 7

Wenzel

Couple of tricky ones in module 5 section B, but overall I thought both papers were pretty good.

Reply 8

TheBhramaBull

CHM5 was fine apart from a few bits in part B, I left out 7a), stupid bit bout drawing shapes, I'd already convinced myself yesterday it wouldn't come up!

Reply 9

Lolcat

I forgot we had the gas constant on our data sheets.. ;x I used 3.81 instead of 8.31.. I feel stupid now. And for some reason I thought there was a question on partial pressures/gas equilibria but everyone told me there wasn't one, so I don't know wtf I did there. End of Question 9 on Mod 5 I think it was... or maybe Q6 lol. Oh well.

Like everyone else I got so many Bs on multi choice I thought I was doing it wrong. I went through and double checked them all just before the end and I still had an abundance of them.. Well, statistically I should get 25% just on pure chance so hopefully making educated guesses has boosted that.

Reply 10

person 34

9

emma_wemma

I got loads of B's too - throughout the whole paper though, mostly in Question 20 onwards.

CHM5 was alright, although I put SO3 instead if SO2 in redox reaction and completely made up the test to distignuish FeCL3 and CuCL2... now I know what it is! lol

Emma
x

What was it? lol

Reply 11

Steve1234

to distinguish between fecl3 and cucl2.... was it just add chlorine (or 4CL-) ... then [Fe(H20)6]2+ and [Cu(H2O)]2+ would take part in a ligand sub. reaction and so change colour - not sure about the colours- i put the copper one as blue and iron one as red :s ..

Reply 12

person 34

9

Ohhhh crap. i just put add Naoh and banged on about colours. Oh well. Technically it owuld distinguish them. nevermind.

Reply 13

Wenzel

Steve1234

to distinguish between fecl3 and cucl2.... was it just add chlorine (or 4CL-) ... then [Fe(H20)6]2+ and [Cu(H2O)]2+ would take part in a ligand sub. reaction and so change colour - not sure about the colours- i put the copper one as blue and iron one as red :s ..

I said add sodium carbonate. The chromium would give off a gas (CO₂), the iron wouldn't.

It was CrCl₃ and FeCl₂ by the way, not copper (II) and iron (III). :P

Reply 14

Lu-x

16

I think there were a number of different answers that you could have put to distinguish between them.

Reply 15

Steve1234

well dunno... what i put might be wrong !... i'm not so sure it's right tbh now lol

Reply 16

Adamshields

I had a nightmare on section B of CHM5. Everything that I didnt want to come up, came up. Is it me or were there no periodicity questions? Not that I can remember anyway.

Reply 17

blue_boy

there were a couple, but only like 3 or 4 marks worth

Reply 18

Pepe Le Poosh

14

Wenzel

I said add sodium carbonate. The chromium would give off a gas (CO₂), the iron wouldn't.

It was CrCl₃ and FeCl₂ by the way, not copper (II) and iron (III). :P

I said add NH3, they both form a precipitate but the Chromium one redissolves in excess to form a purple solution. I think there is more than one right answer for that bit.

Did anyone get Delta G as 23.45 (ish)

And... in section B it was NaMnO4 right?

Reply 19

Pepe Le Poosh

14

Adamshields

I had a nightmare on section B of CHM5. Everything that I didnt want to come up, came up. Is it me or were there no periodicity questions? Not that I can remember anyway.

There was a Silicon Chloride equation in a section B worth 2 marks.

AQA CHM 5 and 6

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