405CommonIon

405CommonIon - in 100 mL of 0.15 M NaCl solution Data K...

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Lesson 20 1 Lesson 20 Example 1 Ammonium hexachloroplatinate, (NH 4 ) 2 (PtCl 6 ) has a K sp of 5.6 × 10 –6 mol 3 /L 3 at 20 o C. Compute its solubility in g/L of solution. Lesson 20 The common ion effect Lesson 20 (a) A clear saturated solution of PbI 2 (b) When KI is added, the common ion I - makes part of the Pb 2 I precipitate (yellow precipitate)
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Lesson 20 2 Lesson 20 Common ion effect Ag + , Cl - AgCl Ag + , Cl - , Na + AgCl +NaCl K sp = [Ag + ][Cl - ] [Cl - ] increases momentarily Q = [Ag + ][Cl - ] > K sp Ag + , Cl - , Na + AgCl AgCl precipitates to restore [Ag + ][Cl - ] to its equilibrium value, K sp Lesson 20 Example 2 Calculate the mass of AgCl that can dissolve
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Unformatted text preview: in 100 mL of 0.15 M NaCl solution. Data: K sp (AgCl) = 1.6 × 10 –10 mol 2 /L 2 . Lesson 20 Suggested readings 18.3 The Common-Ion Effect in Solubility Equilibria Lesson 20 3 Lesson 20 Summary 1. Chemical Equilibrium 2. Equilibrium Constants: K c and K p 3. Reaction Quotient 4. Le Chatelier’s Principle 5. Solubility and K sp 6. The Common Ion Effect Lesson 20 Where are we? Stoichiometry Gases Phase Equilibria and Solutions Reaction Equilibria Electrochemistry Reaction Kinetics Lesson 9...
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This note was uploaded on 11/29/2011 for the course CHE 102 taught by Professor Simon during the Fall '08 term at Waterloo.

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405CommonIon - in 100 mL of 0.15 M NaCl solution Data K...

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