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PLEASE PLEASE help! CHEM5 Transition metals...

Hiya! Basically, i need to know what we need to know for this chapter. My teacher's taught from the AQA book and thats it. However on tsr iv been hearing about memorising coloured ions and stuff. We've only been taught about 6 or 7 anf people are saying theres way more.....

Could someone PLEASE just give a rough outline of what I need to know? Coloured ions and reactions and stuff. Or just a nudge in the general direction, maybe some links?

ANY help would be most appreciated!
Reply 1
Avatar for zed963
zed963
16
sorry I can't exactly help you because I'm doing edexcel but you are learning similar things to me.

I would suggest you go on to the aqa website and download the specification which covers what you need to know.

For the coloured ions bit its this:

sodium na+ yellow
potassium k+ lilac
calcium ca2+ red
coppper(ll) cu2+ green - blue


Basically these colours above are given off in a flame when it is reacting with something or burning.

Hope I helped.
Reply 2
Avatar for YaaahSarah
YaaahSarah
7
Colored ions...

Do you mean the

Copper ions = blue
Iron 2+ ions = green
Iron 3+ ions = brown
kinda thing?
Reply 3
Avatar for nmudz_009
nmudz_009
22
Check on the spec..and if thats not clear enough just have a go at some AQA past papers and it shud become apparent whether you need to memorise the colours or not. I do edexcel so im not sure about AQA.
Just check your spec it's not difficult.
You really should know the colours and reactions of transition metal complexes, e.g. [CuCl4]2-, [Cr(H2O)6]3+.
There are 6 transition metals split up into reacting with OH, excess OH, NH3, Excess NH3 and Carbonate.

So we're looking at 30 equations here, most follow a similar pattern but surely this should be given in class?
Reply 7
Avatar for wibletg
wibletg
3
Bit of a bump.

Have a look:
http://alevelchem.com/aqa_a_level_chemistry/unit3.5/s355/03.htm and
http://alevelchem.com/aqa_a_level_chemistry/unit3.5/s355/04.htm
Reply 8
Avatar for maziz
maziz
Hey, I know it's a bit late but I hope this helps


This was posted from The Student Room's iPhone/iPad App
ImageUploadedByStudent Room1338537608.730577.jpg94.5KB

This is what i'm learning, very slowly :banghead:
Complex Ions.PNG35.6KB
I thought that (Cr(H2O)6) 3 was green not red???

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