Horvath Practice Problems 83

Horvath Practice Problems 83 - (c lead II iodide 2 Put the...

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We write the solubility reaction Ca(OH) 2 ­ Ca 2+ +2 OH and K sp =5 . 5 × 10 5 = £ Ca 2+ ¤£ OH ¤ 2 From the stoichiometry of the reaction 2 x moles of OH is produced for every x moles of Ca 2+ thus 5 . 5 × 10 5 =( x )(2 x ) 2 4 x 3 =5 . 5 × 10 5 x 3 = 5 . 5 × 10 5 4 x = 3 r 5 . 5 × 10 5 4 x =0 . 024 Thus £ Ca 2+ ¤ = x =0 . 024 Mand £ OH ¤ =2 x =0 . 048 M. We can take this further and determine the pH of the solution. pH =1 4 ( log 0 . 048) pH =1 2 . 6 Group Work 1. Write the solubility product for (a) copper II sul f
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Unformatted text preview: (c) lead II iodide 2. Put the solubility reaction we did in class into the ICE chart formalism. 3. The common ion e f ect occurs in solubility reactions as well as acid-base reactions. How would the common ion e f ect work here? Can you setup an ICE chart that will handle the common ion e f ect? 82 SOLUBILITY OF WEAK ELECTROLYTES...
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This document was uploaded on 11/01/2011 for the course CHM 2046 at University of Florida.

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