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Unformatted text preview: 3 (aq) [Ag(NH 3 ) 2 ] + K f = Salt solubility increases due to complex formation [Ag(NH 3 ) 2 ] + [Ag][NH 3 ] 2 3 Ionic Strength Total ionic concentration in solution Affects the apparent charge on a cation or anion changes Ksp and pH of salt solutions from that expected on the basis of concentration tabulated activity coefficients, Replace concentrations with activities [M] [M] M called an activity A M = [M] M Example What is the concentration of F anions in a solution saturated with CaF 2 and containing enough MgSO 4 to make the ionic strength 0.05 M? Ca = 0.485 F = 0.81 K sp = 3.9 x 10 11...
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