cinide prac (1 Viewer)

[crazybrad]

ne1 with info, im desprite

 

[crazybrad]

help please

 

[crazybrad]

due tomorrow

\

 

[jims]

whats the cinide prac?

 

[crazybrad]

cynide prac with fe3+ test

 

[jims]

u mean the test to detect fe3+ ?

 

[spice girl]

err...to my often-dodgy memory, i recollect it's thiocyanide (SCN-). Basically an addition of SCN- anions to Fe3+ will give a deep blood-red [FeSCN]2- complex. Addition of SCN- to Fe2+ won't do anything. This is basically to tell between Fe2+ and Fe3+

 

[underthesun]

Hey, try get KCN (potassium cyanide) and put it on your teacher's food! He'll give almond breath after

No, don't. He's gonna die if you do..
Aren't cyanides meant to be dangerous or something? Or is SCN not that dangerous?

 

[BlackJack]

The addition of the S to the ion molecule makes it not so deadly, I think. The entire properties of the ion changes... and yes it forms the deep, blood red colour with Fe3+.

 

[crazybrad]

too late now ive fucked t, it was all about the equilbrium shoit when u add ki, and shit like that noone finished it
ah well thanls neway