chemistry problem?

Question

PbI2(s)---><----- Pb^2+(aq)+OH^1-(aq)

what is the concentration of I^1- at eqilibrium if the [Pb^2+} is 0.10M?

how do i do a problem like this?

Answer 1

Assuming that you have written the equation wrongly, the concentration of I- ions is simply double that of the Pb2+ ions.

Maybe this was a solubility product question, in which case you need to give the information in a much clearer manner.