AQA Chemistry Unit 5 - Colour change diagram, for transition metal ions. Watch

resortini
Badges: 10
Rep:
?
#1
Report Thread starter 8 years ago
#1
Hi there, the book I have is really pootly laid out and we don't make any notes in class either. I have an AQA chemistry unit 5 exam next week, and was wondering if anyone could direct me to a diagram, or even share their own, for colour changes when OH-, NH3, and so on, are added to aqueous transition metal ions. I have produced a very poor one of my own, it does help, although I think it could be a lot better. Does anyone know of a good one, either on here, or on the web, suitable for the new AQA chemistry unit 5 spec? Thanks very much in advance.
1
quote
reply
resortini
Badges: 10
Rep:
?
#2
Report Thread starter 8 years ago
#2
please
0
quote
reply
charco
  • Community Assistant
Badges: 17
Rep:
?
#3
Report 8 years ago
#3
(Original post by resortini)
please
You are wasting time asking for something that you could easily prepare yourself ( I believe it's called 'being bone-idle')

You are not looking for explanation, or help with concepts, or even solving problems!

Pick up a good text, or spend half an hour on the internet to find out the colours of all of the relevant TM ions.

Then make your own 'diagram' or 'scheme' or whatever.

The time taken is investment in learning, which will be of benefit to you in the long-run. :yep:
2
quote
reply
Mechhz0rz
Badges: 1
Rep:
?
#4
Report 8 years ago
#4
If you have the AQA text book, the very last page is a pretty good summary. But, if not, I had the same problem. In short form I can give you the actual colour changes and you can make a colour coded diagram or whatever

starting with the 2+ complex ions
[Fe(H20)6)]2+

with OH- [Fe(h20)4(OH)2] - green gelatinous ppt
with XS OH- [Fe(H20)(OH)2] - green gelatinous ppt
with NH3- [Fe(H20)4(OH)2] - green gelatinous ppt
with XS NH3- [Fe(H20)4(OH)2] - green gelatinous ppt
with carbonate [FeCO3] - green


[Cu(H20)6]2+

with OH- [Cu(H20)4(OH)2] pale blue
with XS OH- [Cu(H20)4(OH)2] pale blue
with NH3- [Cu(H20)4(OH)2] pale blue

with XS NH3- [Cu(NH3)4(H20)6]2+ deep blue


[Co(H20)6]2+ pink


with OH- [Co(H20)4(OH)2] blue
with XS OH- [Co(H20)4(OH)2] blue
with NH3 [Co(H20)4(OH)2] blue

with XS NH3 [Co(NH3)6]2+ pale yellow/brown
with carbonate [CoCo3] pink


I'll maybe do the 3+ complex ions a little later, but good luck with learning all of them, they're killing me -__-
4
quote
reply
resortini
Badges: 10
Rep:
?
#5
Report Thread starter 8 years ago
#5
(Original post by charco)
You are wasting time asking for something that you could easily prepare yourself ( I believe it's called 'being bone-idle')

You are not looking for explanation, or help with concepts, or even solving problems!

Pick up a good text, or spend half an hour on the internet to find out the colours of all of the relevant TM ions.

Then make your own 'diagram' or 'scheme' or whatever.

The time taken is investment in learning, which will be of benefit to you in the long-run. :yep:
fine
2
quote
reply
harsjan
Badges: 0
#6
Report 8 years ago
#6
(Original post by Mechhz0rz)
If you have the AQA text book, the very last page is a pretty good summary. But, if not, I had the same problem. In short form I can give you the actual colour changes and you can make a colour coded diagram or whatever

starting with the 2+ complex ions
[Fe(H20)6)]2+

with OH- [Fe(h20)4(OH)2] - green gelatinous ppt
with XS OH- [Fe(H20)(OH)2] - green gelatinous ppt
with NH3- [Fe(H20)4(OH)2] - green gelatinous ppt
with XS NH3- [Fe(H20)4(OH)2] - green gelatinous ppt
with carbonate [FeCO3] - green


[Cu(H20)6]2+

with OH- [Cu(H20)4(OH)2] pale blue
with XS OH- [Cu(H20)4(OH)2] pale blue
with NH3- [Cu(H20)4(OH)2] pale blue

with XS NH3- [Cu(NH3)4(H20)6]2+ deep blue


[Co(H20)6]2+ pink


with OH- [Co(H20)4(OH)2] blue
with XS OH- [Co(H20)4(OH)2] blue
with NH3 [Co(H20)4(OH)2] blue

with XS NH3 [Co(NH3)6]2+ pale yellow/brown
with carbonate [CoCo3] pink


I'll maybe do the 3+ complex ions a little later, but good luck with learning all of them, they're killing me -__-
This is extremely usefull cud u plsss giv one for 3+complex ions???
0
quote
reply
Mechhz0rz
Badges: 1
Rep:
?
#7
Report 8 years ago
#7
(Original post by harsjan)
This is extremely usefull cud u plsss giv one for 3+complex ions???
yup

[Fe(H20)6]3+ purple/yellowy brown


with NaOH -- [Fe(H20)3(OH)3] brown gelatinous ppt ppt
with XS NaOH -- [Fe(H20)3(OH)3] brown gelatinous ppt
with Nh3 -- [Fe(H20)3(OH)3] brown gelatinous ppt
with XS NH3 -- [Fe(H20)3(OH)3] brown gelatinous ppt
with carbonate -- [Fe(H20)3(OH)3] brown gelatinous ppt
and C02 bubbles


[Al(H20)6]3+ colourless

with NaOH-- [Al(H20)3(OH)3] white ppt
with XS Naoh -- [Al(OH)4]- colourless
with NH3 -- [Al(H20)3(OH)3] white ppt
with XS NH3 -- [Al(H20)3(OH)3] white ppt
with carbonate -- [Al(H20)3(OH)3] white ppt and CO2 bubbles

[Cr(H20)6]3+ ruby

with NaOH -- [Cr(H20)3(OH)3] green ppt
with XS NaOH -- [Cr(OH)6]3- green sol
with NH3 -- [Cr(H20)3(OH)3] green ppt
with XS NH3 -- [Cr(NH3)6]3+ purple sol
with carbonate -- [Cr(H20)3(OH)3] green ppt and cO2 bubbles



:woo:
10
quote
reply
lollerblades
Badges: 0
Rep:
?
#8
Report 5 years ago
#8
(Original post by Mechhz0rz)
yup

[Fe(H20)6]3+ purple/yellowy brown


with NaOH -- [Fe(H20)3(OH)3] brown gelatinous ppt ppt
with XS NaOH -- [Fe(H20)3(OH)3] brown gelatinous ppt
with Nh3 -- [Fe(H20)3(OH)3] brown gelatinous ppt
with XS NH3 -- [Fe(H20)3(OH)3] brown gelatinous ppt
with carbonate -- [Fe(H20)3(OH)3] brown gelatinous ppt
and C02 bubbles


[Al(H20)6]3+ colourless

with NaOH-- [Al(H20)3(OH)3] white ppt
with XS Naoh -- [Al(OH)4]- colourless
with NH3 -- [Al(H20)3(OH)3] white ppt
with XS NH3 -- [Al(H20)3(OH)3] white ppt
with carbonate -- [Al(H20)3(OH)3] white ppt and CO2 bubbles

[Cr(H20)6]3+ ruby

with NaOH -- [Cr(H20)3(OH)3] green ppt
with XS NaOH -- [Cr(OH)6]3- green sol
with NH3 -- [Cr(H20)3(OH)3] green ppt
with XS NH3 -- [Cr(NH3)6]3+ purple sol
with carbonate -- [Cr(H20)3(OH)3] green ppt and cO2 bubbles



:woo:

You are a ****ing god... xxxxxxx
0
quote
reply
Mr Moonlight
Badges: 0
Rep:
?
#9
Report 1 year ago
#9
I know i'm a bit late to the party but here's the ones we need to know for the the new AQA spec
Attached files
0
quote
reply
Super199
Badges: 18
Rep:
?
#10
Report 1 year ago
#10
(Original post by Mr Moonlight)
I know i'm a bit late to the party but here's the ones we need to know for the the new AQA spec
Much love x
0
quote
reply
123chem
Badges: 16
Rep:
?
#11
Report 1 year ago
#11
(Original post by Mr Moonlight)
I know i'm a bit late to the party but here's the ones we need to know for the the new AQA spec

You know aqa have already made one for us? XD
http://filestore.aqa.org.uk/resource...METAL-IONS.PDF
0
quote
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
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

University open days

  • Sheffield Hallam University
    City Campus Undergraduate
    Thu, 13 Dec '18
  • University of Buckingham
    Open Evening Undergraduate
    Thu, 13 Dec '18
  • University of Lincoln
    Mini Open Day at the Brayford Campus Undergraduate
    Wed, 19 Dec '18

Were you ever put in isolation at school?

Yes (44)
27.85%
No (114)
72.15%

Watched Threads

View All