colour of ions complexes Flashcards
what colour is [Fe(H2O)6]2+(aq)
green solution
what happens when you add an excess of NaOH to iron(II)
no further change
what happens when you add an excess of NH3 to iron (II)
no further change
what colour is FeCO3(s)
green ppt
what colour is [Cu(H2O)6]2+(aq)
blue solution
what happens in an excess of NaOH to Cu(H2O)4(OH)2(s)
no further change
what happens with an addition of NH3 to Cu(H2O)4(OH)2(s)
blue ppt
what colour is [Cu(H2O)2(NH3)4]2+(aq)
deep blue solution
what colour is CuCO3 (s)
blue - green ppt
what colour is [Fe(H2O)6]3+
purple solution may look yellow - brown due to some [Fe(H2O)5(OH)]2+(aq)
what colour is Fe(H2O)3(OH)3(s)
brown ppt
what happens when you add an excess of NaOH to Fe(H2O)3(OH)3(s)j
No further change
what colour is Fe(H2O)3(OH)3(s)
brown ppt
what happens when you add an excess of NH3 to Fe(H2O)3(OH)3(s)
no further change
what colour is Fe(H2O)3(OH)3(s)
brown ppt
what colour is [Al(H2O)6]3+(aq)
colourless solution
what colour is Al(H2O)3(OH)3(s)
white ppt
what colour is [Al(OH)4]–(aq)
colourless solution
what happens when you add an excess of NaOH to Al(H2O)3(OH)3(s)
[Al(OH)4]–(aq)
what colour is Al(H2O)3(OH)3(s)
white ppt
what happens when an excess of NH3 is added to Al(H2O)3(OH)3(s)
no further change
what happens when Na2CO3 is added to Al(H2O)3(OH)3(s)
white ppt
and CO2 gas evolved
colour of [Cu(H2O)6]2+
blue solution
colour of Cu(H2O)4(OH)2(s)
blue ppt
colour of [Cu(H2O)2(NH3)4]2+ (aq)
deep blue solution
colour of CuCO3(s)
blue - green ppt
[CuCl4]2–(aq) colour
yellow (may look green)
colour of [Co(H2O)6]2+ (aq)
pink solution
Co(H2O)4(OH)2(s) colour
blue ppt
colour of [Co(NH3)6]2+(s)
pale brown solution
CoCO3(s) colour
purple ppt
[CoCl4]2–(aq) colour
blue solution
oxidation states of vanadium with colours and a way to remember them
V (v) - yellow
V(IV) - blue
V(III)- green
V(II)- violet
You Better Get Vanadium
