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Solubility Product Constant

Learn about solubility equilibrium, the concept of Ksp, and how it affects the solubility of compounds like AgCl. Discover how Ksp values determine solubility and practice calculating Ksp for various compounds.

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Solubility Product Constant

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  1. Solubility Product Constant Chemistry Mrs. Coyle

  2. Solubility Equilibrium AgCl(s) ↔ Ag+ (aq) + Cl- (aq) The concentration of AgCl (s) is constant and AgCl is a strong electrolyte (dissociates almost completely), so Ksp= [Ag+] [Cl-] Ksp is the solubility product constant

  3. Note • The larger the Ksp the larger the solubility of the compound. (This comparison can be made when the ion ratios are equal). • Ex. Of the following, which is more soluble? • AgCl Ksp= 1.8x10-10 • AgI Ksp= 8.3x10-17

  4. Example: • Write the Ksp for: • CuS • BaSO4 • SrCO3 • AgI

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