TEACHING LABORATORY
VIRTUAL CHEMLAB
PERFORMANCE LABORATORY
 


Precipitation Reactions

Formation of lead(II) iodide precipitate

For example, when we mix together potassium iodide solution and lead(II) nitrate solution, a yellow precipitate of lead(II) iodide forms.


Chemical equation: Pb(NO3)2 (aq) + 2KI (aq)     ----->     PbI2 (s) + 2KNO3 (aq)

Ionic equation: Pb2+ (aq) + 2I- (aq)     ----->     PbI2 (s)

 

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