Solubility and Complexation Equilibria

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Presentation transcript:

Solubility and Complexation Equilibria Chapter 18

Is AgCl soluble or insoluble?

Dissolution Reactions and Ksp Expressions AgCl(s) Mg(OH)2(s) Ca3(PO4)2(s)

Standard Reaction Types:

Determining Ksp Experimentally The solubility of PbF2 is found to be 0.525 g/L. What is Ksp?

Predicting Solubility

Standard Types

Determining if a precipitation will occur:

Determining if a precipitation will occur: If 5.0 mL of 1.0 x 10-3 M NaCl is added to 1.0 mL of 1.0 x 10-3 M Pb(NO3)2, will solid PbCl2 (Ksp = 1.7 x 10-5) precipitate? If a precipitate will not form, what chloride ion concentration will cause a precipitate of lead chloride to form?

Determining if a precipitation will occur: If 5.0 mL of 1.0 x 10-3 M NaCl is added to 1.0 mL of 1.0 x 10-3 M Pb(NO3)2, will solid PbCl2 (Ksp = 1.7 x 10-5) precipitate? If a precipitate will not form, what chloride ion concentration will cause a precipitate of lead chloride to form?

Common Ion Effect: The presence of an ion common to a solubility equilibrium will decrease solubility of the salt. What is the solubility of PbCl2 in pure water and in a 0.200 M NaCl solution? (Ksp = 1.7 x 10-5)

Common Ion Effect: The presence of an ion common to a solubility equilibrium will decrease solubility of the salt. What is the solubility of PbCl2 in pure water and in a 0.200 M NaCl solution?