Aqeuous Ions Flashcards
(9 cards)
1
Q
Name the 4 ions that are in aqueous ions
A
Fe3+ , fe2+, cu2+, Al 3+
2
Q
What colour is fe2+
A
Green solution
3
Q
What colour is cu2+ ions
A
Blue solution
4
Q
What colour is Al3+ ion ?
A
Colourless solution
5
Q
What colour fe3+
A
Purple solution
6
Q
Coordinate bond
A
Shred pair of electrons that come from same atom
7
Q
Formula of hexa aqua complex ions
A
(X(H2O)6)n
8
Q
Why is fe3+ more acidic than fe 2+?
A
Fe3+ has a jigger charge density and is a smaller ion.
Fe3+ is more polarising so attracts lone pair on ligand of oxygen in water
This weakens the O-H bond
So fe3+ complex releases more H+ ions
9
Q
Fe 3+ and Al3+ in water
A
They act as a acid x proton acceptor
