Salts Flashcards
Salts are
**ionic ** compounds
THEY CONTAIN A ANION AND CATION
State 2 methods to create soluble salt
- Reacting an acid with a metal, insoluble base/carbonate
- Titration
How to create insoluble salt?
Precipitation
mixing 2 solutions to form an insoluble solid that separates from the reaction mixture
When Zn2+ ion, Al3+ ion or Pb2+ ion is reacted with NaOH, what happens?
Few drops:
white ppt
Excess:
dissolve to form colourless solution
Reaction when Ca2+ ion reacted with NaOH…
Few drops:
white ppt
Excess:
ppt insoluble in excess
Reaction when Cu2+ ion reacted with NaOH…
Few drops:
light blue ppt
Excess:
ppt insoluble in excess
Reaction when Fe2+ ion reacted with NaOH…
few drops:
green ppt
Excess:
ppt insoluble in excess
Reaction when Fe3+ ion reacted with NaOH…
few drops:
reddish brown ppt
Excess:
ppt insoluble in excess
Reaction when NH4+ ion reacted with NaOH…
few drops:
no ppt
excess:
no change observed
Reaction when Ca2+ ion reacted with NH3…
few drops:
no ppt
excess:
no ppt
Reaction when Al3+ & Pb2+ ion reacted with NH3…
few drops:
white ppt
excess:
ppt insoluble in excess
Reaction when Zn2+ ion reacted with NH3…
few drops:
white ppt
Reaction when Zn2+ ion reacted with NH3…
few drops:
white ppt
excess:
ppt dissolve to form colourless solution
Reaction when Cu2+ ion reacted with NH3…
few drops:
light blue ppt
excess:
ppt dissolve to form deep blue solution
Reaction when Fe2+ ion reacted with NH3…
few drops:
green ppt
excess:
ppt insoluble