Question #739af

1 Answer
Apr 20, 2016

All nitrates are soluble; PbX_2PbX2 is insoluble.

Explanation:

Pb(NO_3)_2(aq) + 2KI(aq) rarr PbI_2(s)darr + 2KI(aq)Pb(NO3)2(aq)+2KI(aq)PbI2(s)+2KI(aq)

Of course I could make this a net ionic equation. However, this question illustrates aqueous solubility rules. All nitrates are soluble; this allows us to get Pb^(2+)Pb2+ or Ag^(+)Ag+ into aqueous solution. Most halides are soluble. The exceptions are silver halides, mercurous halides, and LEAD HALIDES. PbI_2PbI2 wil precipitate from solution as a yellow solid. You should have done experiments to illustrate the reaction.