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Aqa chem 4/ chem 5 june 2016 thread

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You don't need to know that

Check specification page 60

Only complex ion with nh3 you need to know is cu(nh3)4(h2o)2

Which is deep blue

i dont think so because i just did a paper where it asked you how to get a dark brown solution from a co2+ hexa-aqua complex

http://filestore.aqa.org.uk/subjects/AQA-CHEM5-QP-JUN12.PDF[

question 8

Reply 2101

The Informant

Which equations do people think will turn up tomorrow? Not colours, but the Cr2O7, MnO4, S2O8 ones.

Reply 2102

YoloSwagginz

Original post by GO97

i dont think so because i just did a paper where it asked you how to get a dark brown solution from a co2+ hexa-aqua complex

http://filestore.aqa.org.uk/subjects/AQA-CHEM5-QP-JUN12.PDF[

question 8

Lmfao I'm in the wrong thread haha I'm on ocr

Going to peace out to the ocr spec lmfao

Reply 2103

shamk123

any one got quick method to remember those stupid colours

Reply 2104

GO97

Original post by Bloom77

Dark brown

[Co(NH3)6]2+ is yellow
Someone correct me if I'm wrong

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yeah ur right, its weird though because they can call it pale yellow, pale brown or straw

Reply 2105

GO97

Original post by YoloSwagginz

Lmfao I'm in the wrong thread haha I'm on ocr

Going to peace out to the ocr spec lmfao

lmao better late than never

Reply 2106

YoloSwagginz

Original post by GO97

lmao better late than never

When I saw the structure of the paper I was like why is this kid doing aqa? Then I scrolled to tittle of the thread

Reply 2107

lahigueraxxx

Original post by lahigueraxxx

Do all-nighters actually work for people?? Has it worked for you in the past??

Anyone? lol

Reply 2108

thenextchemist

Original post by lahigueraxxx

Anyone? lol

Nope
Depends
If your learning everything in one day coz you literally know nothing, it would be impossible for me
I'm learning bits of the spec that I wasn't bothered to memorise at the beginning

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Reply 2109

GO97

Original post by shamk123

any one got quick method to remember those stupid colours

i was in ur shoes earlier today this was the best i came across

https://chemrevise.files.wordpress.com/2016/05/mod-5-revision-guide-4-transition-metals.pdf

last two page have all the colours youll need to know. unfortunately theres no shortcut, u just have to make up a pattern that works for you or just cram it raw.

one thing ive noticed tho is the colours tend to repeat for the same metal e.g. fe2+ is mostly green for everything and copper is pretty much blue for everything

(edited 7 years ago)

Reply 2110

girl :D

Hey guys, all the best for tomorrow! hope u guys all get what u need.

Reply 2111

GO97

Original post by YoloSwagginz

When I saw the structure of the paper I was like why is this kid doing aqa? Then I scrolled to tittle of the thread

lol

Reply 2112

lahigueraxxx

Original post by Bloom77

Yeah I was actually asking for biology tomorrow haha, i feel like I've spent too much time on chem and literally no time on bio :frown:

It's my last exam though so I'm contemplating doing an all nighter for it

Reply 2113

Hopefulmedic15

Original post by GO97

i was in ur shoes earlier today this was the best i came across

https://chemrevise.files.wordpress.com/2016/05/mod-5-revision-guide-4-transition-metals.pdf

last two page have all the colours youll need to know. unfortunately theres no shortcut, u just have to make up a pattern that works for you or just cram it raw.

one thing ive noticed tho is the colours tend to repeat for the same metal e.g. fe3+ is mostly green for everything and copper is pretty much blue for everything

Fe2+ is mostly green for everything, Fe3+ is yellow with water and forms a brown ppt with everything else

Reply 2114

GO97

Original post by Hopefulmedic15

Fe2+ is mostly green for everything, Fe3+ is yellow with water and forms a brown ppt with everything else

yeah typo sorry doing exam questions and looking on here at the same time is prob not the best idea

Reply 2115

Boundless_x

Can someone please explainwhy you need a platinum electrode on the right?

Reply 2116

Hopefulmedic15

Original post by GO97

yeah typo sorry doing exam questions and looking on here at the same time is prob not the best idea

Lol I get it, I just didn't want you going into the exam tomorrow mixing Fe3+ with Fe2+!

My brain is pretty frazzled atm trying to cram bio at the same time as finishing the past papers for chem

Reply 2117

GO97

Original post by Hopefulmedic15

Lol I get it, I just didn't want you going into the exam tomorrow mixing Fe3+ with Fe2+!

My brain is pretty frazzled atm trying to cram bio at the same time as finishing the past papers for chem

lol i do stuff like that anyway even though i know it. and yeah bio is horrid i was trying to cram the whole thing on sunday but then got to genetic engineering (last topic) and felt like jumping out of my bedroom window. ill finish it off tomorrow and then do past papers after

(edited 7 years ago)

Reply 2118

GO97

Original post by Boundless_x

Can someone please explainwhy you need a platinum electrode on the right?

yeah this is weird. it could be to do with allowing electricity to flow

Reply 2119

shamk123

Original post by lahigueraxxx

Anyone? lol

me i had done no revision for chem4 and i had to pretty much pull an all nighter (got 3 hours sleep) to even do decent on the exam, if i didnt pull an all nighter it would have been sooo much worse