CHM 116 Lecture 21: Addition Aspects of Equilibrium Continued 4
Document Summary
Solubility equilibria: because ionic compounds are strong electrolytes, they dissociate completely to the extent that they dissolve, when an equilibrium equation is written the solid is the reactant and the ions in solution are the products. The equilibrium constant expression is called the solubility-product constant. Whatever we are trying to dissolve is the reactant. Baso4 (s) ba+2 (aq) + so4-2 (aq) Ba3(po4)2 (s) 3 ba+2 (aq) + 2 po4-3 (aq) Solubility vs. solubility product: ksp is not the same as solubility, solubility is the quantity of a substance that dissolves to form a saturated solution. Molar solubility of compound (mol/l) also the formula weight which goes to. Molar concentration of ions also the empirical formula, which goes to. Ksp also the solubility equilibrium at this point. Caf2 (s) ca+2 (aq) + 2 f- (aq) ; ksp = 3. 9 x 10-11.
