2. kK4Fe(CN)6 kK3Fe(CN)6 KSCN Fe(NH4)2 (SO4)2 Turquoise ppt Dark blue ppt
Clear orange
FeCl3
Dark Green ppt
Dark Red ppt
Fe(NH4)2 (SO4)2 INITIAL OBS: CLEAR AND COLORLESS
FeCl3: INITIAL OBS: CLEAR AND YELLOW
K4Fe(CN)6: INITIAL OBS: CLEAR AND YELLOW
K3Fe(CN)6: INITIAL OBS: CLEAR AND YELLOW
KSCN : INITIAL OBS: CLEAR AND COLORLESS

4. Practice: Name the following compounds
Fe +x
Cl-1
Cl-1
Cl-1 +3
FeCl3
x + 3(-1) = 0; x = +3
iron(III) chloride

5. How many ions are present in Fe(NH4)2(SO4)2? What is the on the Fe?-2 -2
Fe +x +1 +1 +2

7. +2 +3 +2 +3 kK4Fe(CN)6 kK3Fe(CN)6 KSCN Fe(NH4)2 (SO4)2 Turquoise ppt
Dark blue ppt
Clear orange
FeCl3
Dark Green ppt
Dark Red ppt +2 +3
Fe(NH4)2 (SO4)2 INITIAL OBS: CLEAR AND COLORLESS
FeCl3: INITIAL OBS: CLEAR AND YELLOW
K4Fe(CN)6: INITIAL OBS: CLEAR AND YELLOW
K3Fe(CN)6: INITIAL OBS: CLEAR AND YELLOW
KSCN : INITIAL OBS: CLEAR AND COLORLESS