Tests for Cations Flashcards
1
Q
Ammonium - with sodium hydroxide
A
Ammonia produced
2
Q
Calcium - with sodium hydroxide
A
white ppt.
in excess: insoluble (no change)
3
Q
Calcium - with ammonia
A
no ppt.
or slight white ppt.
4
Q
Copper - with sodium hydroxide
A
light blue ppt.
In excess: insoluble (no change)
5
Q
Copper _ with ammonia
A
light blue ppt.
In excess: dark blue solution
6
Q
iron 2+ with sodium hydroxide and ammonia
A
green ppt.
In excess: insoluble (no change)
7
Q
iron 3+ with sodium hydroxide and ammonia
A
red-brown ppt.
In excess: insoluble (no change)
8
Q
Zinc - with sodium hydroxide and ammonia
A
white ppt.
In excess; colourless solution