Transcription of Equilibrium constant Chemical equil .: solubility product ...
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Equilibrium constant Chemical equil .: solubility product ...
Chem215 product /P 1 Chemical equil .: solubility product (Ch 6-1 to 6-4) Equilibrium constant calculation of free ion concentration in a saturatedsolution. common ion effectSystematic treatment of Equilibrium (Ch 9) Mass balance Charge balance Dependence of solubility on pHChem215 product /P 2 Equilibrium constantFor the reversible reaction,aA + bB cC + dDbeqaeqdeqceqBADCK tconsmequilibriuwhere][][][][,tan=A convention defines K to be a dimensionless examples of Chemical equilibria: solubility , acid-base, complexWhen the forward reaction predominates,KBADCQ badc>=][][][][When the backward reaction predominates,KBADCQ badc<=][][][][Chem215 product /P 3 free energy change and Equilibrium constantwhere G0 is the change in Gibbs free energy at standard =pressureandetemperaturtconsatSTHG andtan000 = Note than K > 1 ( the forward reaction predominates) if G0 <0 ( products are thermodynamically more stable than thereactants)Chem215 product /P 4 solubility ProductHg2Cl2 (s) Hg22+ + 2 Cl-222]][[ +=ClHgKspInitial conc.
Chem215/P.Li/solubility product/P 1 Chemical equil .: solubility product (Ch 6-1 to 6-4) • equilibrium constant • calculation of free ion concentration in a saturated
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