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Unformatted text preview: 3+ and 0.014 M in Mg 2+ . If potassium carbonate, K 2 CO 3 , is used to selectively precipitate one of the cations while leaving the other cation in solution, which cation will precipitate first? What is the minimum concentration of potassium carbonate required to cause precipitation? 4. A 120.0 mL sample of a solution that is 2.8 x 10-3 M in AgNO 3 is mixed with a 225.0 mL sample of a solution that is 0.10 M in NaCN. After the solution reaches equilibrium, what concentration of Ag + ( aq ) remains? 5. Use the appropriate values of K sp and K f to find the equilibrium constant for the following reaction: (show summation of the relevant equilibria too) 6. PbCl 2 ( s ) + 3 OH- ( aq ) Pb(OH) 3- ( aq ) + 2 Cl-( aq )...
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This note was uploaded on 05/15/2011 for the course CHM 116 taught by Professor Matchett during the Fall '11 term at Grand Valley State University.
- Fall '11