When two aqueous solutions react, they sometimes form solids in the solution. The solid is called a precipitate. Precipitation reactions occur when the cations of one reactant and the anions of a second reactant found in aqueous solutions combine to form an insoluble ionic solid that we call a precipitate.
How do you know if a precipitate will form?
If the value of the ion product is greater than the value of the Ksp, then a precipitate will form. The formation of the precipitate lowers the concentration of each of the ions until the ion product is exactly equal to the Ksp, at which point precipitation ceases.
What causes a precipitate to form?
A precipitate is a solid formed in a chemical reaction that is different from either of the reactants. This can occur when solutions containing ionic compounds are mixed and an insoluble product is formed. ... It also occurs in single displacement when one metal ion in solution is replaced by another metal ion.
