inorganic ion colours

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Chemistry

A-Level Chemistry

AQA

Inorganic Chemistry

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30 Terms

1
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vanadium (II)

Violet

2
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vanadium (III)

Green

3
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vanadium (V)

Yellow

4
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vanadium (IV)

Blue

5
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[Cu(H2O)6]2+

blue solution

6
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[Fe(H2O)6]2+

Green solution

7
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[Al(H2O)6]3+

colourless solution

8
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[Fe(H2O)6]3+

Yellow solution

9
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[Cu(H2O)6]2+ with concentrated HCl

[CuCl4]2-(aq) Pale green/yellow solution

10
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[Cu(H2O)6]2+ with OH-(aq) or NH3(aq)

Cu(OH)2(H2O)4 blue precipitate

11
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[Cu(H2O)6]2+ with excess OH-(aq)

Cu(OH)2(H2O)4 blue precipitate

12
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[Cu(H2O)6]2+ with excess NH3(aq)

[Cu(NH3)4(H2O)2]2+ Deep blue solution

13
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[Cu(H2O)6]2+ with Na2CO3(aq)

CuCO3 green-blue precipitate

14
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[Fe(H2O)6]2+ with OH-(aq) or NH3(aq)

Fe(OH)2(H2O)4 green precipitate - goes brown on standing in air

15
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[Fe(H2O)6]2+ with excess OH-(aq)

Fe(OH)2(H2O)4 green precipitate - goes brown on standing in air

16
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[Fe(H2O)6]2+ with excess NH3(aq)

Fe(OH)2(H2O)4 green precipitate - goes brown on standing in air

17
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[Fe(H2O)6]2+ with Na2CO3(aq)

FeCO3 green precipitate

18
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[Al(H2O)6]3+ with OH-(aq) or NH3(aq)

Al(OH)3(H2O)3 white precipitate

19
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[Fe(H2O)6]3+ with OH-(aq) or NH3(aq)

Fe(OH)3(H2O)3 Brown precipitate

20
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[Fe(H2O)6]3+ with excess OH-(aq)

Fe(OH)3(H2O)3 Brown precipitate

21
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[Fe(H2O)6]3+ with excess NH3(aq)

Fe(OH)3(H2O)3 Brown precipitate

22
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[AL(H2O)6]3+ with excess OH-(aq)

[Al(OH)4] colourless solution

23
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[Al(H2O)6]3+ with excess NH3(aq)

Al(OH)3(H2O)3 white precipitate

24
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[Al(H2O)6]3+ with Na2CO3(aq)

Al(OH)3(H2O)3 white precipitate and bubbles

25
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[Fe(H2O)6]3+ with Na2CO3(aq)

Fe(OH)3(H2O)3 brown precipitate and bubbles

26
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[Co(H2O)6]2+

Pink

27
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[Co(H2O)6]2+ with OH- (and in excess)

[Co(H2O)4(OH)2] Blue precipitate

28
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[Co(H2O)6]2+ with NH3 (and in excess)

[Co(NH3)6]2+(aq) pale brown solution

29
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[Co(H2O)6]2+ with Na2CO3

CoCO3 purple precipitate

30
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[Co(H2O)6]2+ with HCl

[CoCl4]2- blue solution

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