Question

Please help! Will give medal and fan!

What is the concentration of lead ions and sulfide ions in a saturated solution of lead sulfide (PbS) solution at 25ºC (Ksp= 3.0 x 10 -28)?

Answer 1

what's the equation for the dissociation of lead (II) sulfide, and what's the general format for a KSP equation?

Answer 2

https://answers.yahoo.com/question/index?qid=20090319121817AAxdnkh
Dr.A answered 6 years ago
Let x = mol/L of PbS that dissolve.
This will give x mol/L of Pb2+ and x mol/L of S2-

Ksp = [Pb2+][S2-] = (x)(x) = x^2

x = molar solubility = square root Ksp=1.74 x 10^-14 M
that is the concentration of each ion in the saturated solution