Answer to Question #202439 in General Chemistry for Elisa Giuliani

Question #202439

 

  •  Answers to the calculations (showing full solutions)


The reaction between lead nitrate and potassium iodide is an example of a precipitation reaction.

Pb(NO3)2 + 2KI + PbI2 + 2KNO3

 

Let us consider an unbalanced equation

Pb(NO3)2 + KI → PbI2 + KNO3

 



1
Expert's answer
2021-06-03T05:29:21-0400

solution

Pb(NO3)2 + KI → PbI2 + KNO3

Pb2+NO3-(aq)+K+I-(aq)→ PbI2(s)+2KNO3(aq)

Pb2(aq)++2KNO3(aq)+2K(aq)++2I(aq)-→PbI2(s)+2K+(aq)+2NO3-(aq)

cancel out similar ions on both sides

final ionic net equation is as follows

Pb2+(aq)+2I-(aq)→PbI2(S)



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