Alright, but say you have a solid that dissolves 99% into solution, and you are left with only 1% of the original solid, how can one consider the solid's concentration to be constant if only 1% of it is left?..
So I'm guessing that because the nail is so big, whatever ions it loses to the solution don't cause a significant change to its "concentration".
But aren't there any situations where you have a small enough amount of solid that the ions it produces does detract significantly from the...
Why are the concentrations of solids not incorporated into the equilibrium expression? All the books say it's because the "concentration of a pure solid is constant", but that doesn't make sense to me... If the solid is dissociating to produce a given product, why doesn't the concentration...