Metal-aqua Ions Flashcards
1
Q
Fe2+ aqueous
A
Pale green
2
Q
Co2+ aqueous
A
Pink
3
Q
Cu2+ aqueous
A
Blue
4
Q
Fe2+ with NaOH
A
green ppt goes brown on air
5
Q
Co2+ with NaOH
A
Blue ppt.
6
Q
Cu2+ with NaOH
A
Light blue ppt.
7
Q
Fe2+ with NH3
A
Forms [Fe(h2o)4(oh)2]. Green ppt. Brown on air
8
Q
Copper w/ NH3
A
Light blue ppt. @ first then [cu(nh3)4]2+ deep blue solution
9
Q
Cobalt w/ nh3
A
Blue ppt. At first; then with xs [co(nh3)6] pale brown solution
10
Q
Fe2+ with carbonate
A
Green ppt.
11
Q
Copper with carbonate
A
Green- blue precipitate
12
Q
Cobalt with carbonate
A
Pink ppt.
13
Q
Fe3+ aqueous
A
Purple solution
14
Q
Al3+ aqueous
A
Colourless solution
15
Q
Fe3+ with naoh
A
Brown ppt. Just oh3
16
Q
Al3+ with NaOH
A
White ppt. Xs goes to colourless sol. Al(oh)4-
17
Q
Fe3+ with CO3 2-
A
2 fe(h2o)3(oh)3 + 3 co2 + 3 h20 brown ppt. CO2 evolved
18
Q
Al3+ with co3 2-
A
2Al(oh)3(h2o)3 + 3co2 + 3h2o white ppt
