Question

At waht I concentration will precipitation begin?

A solution contains 2.0 x 10-4 M Ag+ and 1.5 x 10-3 M Pb2+. If NaI is added, will AgI
(Ksp = 8.3 x 10-17) or PbI2 (Ksp = 1.4 x 10-8) precipitate first? At what I- concentration will precipitation begin? Show all work, just saying Ag or Pb with no workwill get you 1 point only.

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