Express [Ca²⁺] in Terms [H⁺] for the Solubility of CaSO₄

question 15

Short Answer

Express [Ca²⁺] in terms [H⁺] for the solubility of CaSO₄ using the equations below.Assume all activity coefficients are unity.
CaSO₄ ⇋ Ca²⁺ + K_sp = 2.40 × 10⁻⁵
Ca²⁺ + H₂O ⇋ CaOH⁺ + H⁺____________________K_a = 2.00 × 10⁻¹³
Ca²⁺ + ⇋ CaSO₄ K_ip = 229 ⇋ H⁺ + K_a2 = 1.03 × 10⁻²

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