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Special Equilibrium Constants

    Example Illustrating

Keq value (at 25°C)
 Ka Ionization Constant for an Acid HC2H3O2(aq) +H2O(l)⇄
           H3O+(aq) + C2H3O2-(aq)

Ka = 1.8 x 10-5
Kb Ionization Constant for a Base NH3(g) + HOH(l) ⇄ NH4(aq)+OH-(aq)

Kb = 1.8 x 10-5
Kw Ionization Constant for Water

H2O(l)+ HOH(l)⇄ H3O+(aq)+OH-(aq)

Kw = 1 x 10-14
Ksp Solubility Product Constant Mg(OH)2(s) ⇄ Mg+2(aq) + 2OH-(aq)

Ksp = 1.2 x 10-11
 
D.C. Everest Senior High
6500 Alderson Street
Weston, WI 54476

Bill Heeren, Teacher
November 16, 2013

Phone (715) 359-6561
Extension 4204
Fax (715) 355-7220