28-equilibrium - Ch 8 - Applications of Equilibrium 8 .8 S...

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1 Week 11 CHEM 1310 - Sections L and M 1 Ch 8 - Applications of Equilibrium 8.8 Solubility Product More Examples Relative Solubility Effect of pH on Solubility Effect of Common Ion on Solubility Sections to Skip: 8.3, 8.7, 8.9, and 8.10 Week 11 CHEM 1310 - Sections L and M 2 More Examples of K sp What is the molar solubility of AgCl(s)? AgCl(s) Ag + (aq) + Cl - (aq) K sp = [Ag + ] x [Cl - ] = 1.6 x 10 -10 Solve on board Notice format of this equilibrium: AB A + + B - Week 11 CHEM 1310 - Sections L and M 3 More Analysis of K sp What is the K sp when the salt has a different stoichiometric format? Salt Format K sp Expression AB [A + ] x [B - ] = s 2 AB 2 [A + ] x [B - ] 2 = s x (2s) 2 = 4s 3 A 2 B
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2 Week 11 CHEM 1310 - Sections L and M 4 More Examples of K sp X 3 Y 2 (s) 3X 2+ (aq) + 2Y 3- (aq) Ca 3 (PO 4 ) 2 (s) 3Ca 2+ (aq) + 2PO 4 3- (aq) [Ca 2+ ] = 3 [Ca 3 (PO4) 2 ] = 3s [PO 4 3- ] = 2 [Ca 3 (PO4) 2 ] = 2s K sp = 1.3 x 10 -32 = [Ca
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28-equilibrium - Ch 8 - Applications of Equilibrium 8 .8 S...

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