Transition Metals Flashcards
Colour of aqueous Mn2+
Pale pink
Addition of NaOH with Mn2+
Forms beige/cream precipitate = Mn(OH)2
Addition of excess NaOH with Mn2+
Precipitate is insoluble
Addition of NH3 with Mn2+
Beige/cream precipitate = Mn(OH)2
Addition of excess NH3 with Mn2+
Insoluble
Colour of aqueous Ni2+
Green
Addition of NaOH with Ni2+
Green precipitate = Ni(OH)2
Addition of excess NaOH with Ni2+
Insoluble
Addition of NH3 with Ni2+
Green precipitate = Ni(OH)2
Addition of excess NH3 with Ni2+
Soluble - blue solution
Colour of aqueous Cu2+
Pale blue = Cu(H2O)6
Addition of NaOH with Cu2+
Pale blue precipitate = Cu(OH)2
Addition of excess NaOH with Cu2+
Insoluble
Addition of NH3 with Cu2+
Pale blue precipitate = Cu(OH)2
Addition of excess NH3 with Cu2+
Soluble - dark blue precipitate