Based on the dissolution equation of BaSO4, the solubility product, Ksp, expression of BaSO4 is: [Ba^{2+}] × [SO4^{2-}]
The solubility product, Ksp, of a substance is an equilibrium constant which expresses the product of the concentration of ions produced by a solute.
The solubility of a solute depends on temperature, thus solubility product also depends on temperature.
The balanced equation for the dissolution of barium sulfate is given below:
The solubility product for barium sulfate is given as;
Ksp = [Ba^{2+}] × [SO4^{2-}]
Therefore, the solubility product, Ksp, expression of BaSO4 is: [Ba^{2+}] × [SO4^{2-}]
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