Chemistry - Chemical Equilibrium - Solubility product (Ksp) - Ksp Calculations

3 worked examples. Example 1: 'Calculate the molar solubility of AgCl. Ksp = 1.8×10⁻¹⁰.' AgCl ⇌ Ag⁺ + Cl⁻. Let s = molar solubility. [Ag⁺]=s, [Cl⁻]=s. Ksp = s² = 1.8×10⁻¹⁰. s = 1.34×10⁻⁵ M. Example 2: 'Calculate molar solubility of PbI₂. Ksp = 9.8×10⁻⁹.' PbI₂ ⇌ Pb²⁺ + 2I⁻. [Pb²⁺]=s, [I⁻]=2s. Ksp = (