Flashcards
Transition Metals
Cards in this deck (31)
- 1Cu^2+ in solution[Cu(H2O)6]^2+ / Pale Blue
- 2Mn^2+ in solution[Mn(H2O)6]^2+ / Very Pale Pink
- 3Fe^2+ in solution[Fe(H2O)6]^2+ / Pale Green
- 4Fe^3+ in solution[Fe(H2O)6]^3+ / Pale Yellow
- 5Cr^3+ in solution[Cr(H2O)6]^3+ / Pale Purple
or
[Cr(H2O)5(SO4)]^+ / Green - 6Cu^2+ with OH^-Cu(OH)2 / Pale Blue ppt.
- 7Cu(OH)2 left standing in airNo change
- 8Mn^2+ with OH^-Mn(OH)2 / Light Brown ppt.
- 9Mn^2+ left standing in airOxidises to Mn(OH)3
Darkens to Brown ppt. - 10Fe^2+ with OH^-Fe(OH)2 / Green ppt.
- 11Fe(OH)2 left standing in airOxidises to Fe(OH)3
Darkens to Orange-Brown ppt. - 12Fe^3+ with OH^-Fe(OH)3 / Orange-Brown ppt.
- 13Fe(OH)3 left standing in airNo change
- 14Cr^3+ with OH^-Cr(OH)3 / Grey-Green ppt.
- 15Cr(OH)3 left standing in airNo change
- 16What ion reacts with excess OH^-Cr^3+
- 17Cr^3+ in excess OH^-[Cr(OH)6]^3-
Dark Green solution
(all other TM ions are insoluble) - 18Cu^2+ with NH3Cu(OH)2
Pale Blue ppt. - 19Mn^2+ with NH3Mn(OH)2
Brown ppt. - 20Fe^2+ with NH3Fe(OH)2
Green ppt. - 21Fe^3+ with NH3Fe(OH)3
Orange-Brown ppt. - 22Cr^3+ with NH3Cr(OH)3
Grey-Green ppt. - 23What two ions react in excess NH3?Cu^2+ and Cr^3+
- 24Cu^2+ with excess NH3[Cu(NH3)4(H2O)2]^2+
Deep Blue solution - 25Cr^3+ in excess NH3[Cr(NH3)6]^3+
Purple solution - 26What ion reacts reacts with conc. HClCu^2+
- 27Cu^2+ with conc. HCl[CuCl4]^2-
Yellow solution - 28What colour is MnO4^2- in solution?Deep Purple
- 29What colour is Cr2O7^2- in solution?Orange
- 30What colour is CuI ppt.?White
- 31What colour is I2 with starch?Blue/Black
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- Flashcards on Transition Metals, created by Lewis Tonge on 27/05/2018.
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- Lewis Tonge
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