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Unformatted text preview: saturated (supersaturated). IF Qsp<KSP too many reactants, reaction shifts to the right, Not saturated. Undersaturated (solution can hold more ion). Wants to dissolve more solid and make more ions. What are the units for solubility? Amount of solute that dissolves /amount of solution it dissolves in a solvent. Grams / L, mg/L, g/100ml. % concentration Molar solubility (moles/Liter) only conc term that appear in Ksp. MgF2. What is the molar solubility of MgF2? K sp = 6.4 * 10^-9. MgF2(aq) Mg2+ + 2F-I | bunch C|-x +x +2x E| bunch-x x 2x Ksp = [Mg 2+ ][F-] 2 Ksp = x*(2x) 2 Ksp = 4x 3 x = (Ksp/4) 3 x = 1.17 x 10-3 M (1.17 x 10-3 ) * (24.3 grams / mole) = 0.0284 grams of Mg 2+ / Liter (0.0284)/(1000g) * 10^6 = 28.4 ppm...
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