Solubility Homework Set


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Unformatted text preview: = 1.8 x 10‐10 61. Will a precipitate form when 38 mL of 0.25 M Pb(NO3)2 and 12 mL of 0.35 M KBr are mixed? Why or why not? 62. A solution contains 0.10 M Mg(NO3)2 and 0.10 M Ca(NO3)2. If solid sodium oxalate, Na2C2O4, is added to the solution, what is [Ca2+] (M) when MgC2O4 begins to precipitate? (Assume no volume changes.) At 25 oC, Ksp of CaC2O4 is 2.3 x 10–9 and Ksp of MgC2O4 is 8.6 x 10–5. 4 Dr. Fus CHEM 123 63. The Ksp for BaF2 is 1.0 10‐6. When 10 mL of 0.010 M NaF is mixed with 10 mL of 0.01 M BaNO3 will a precipitate form? Why or why not? 64. A solution contains 0.005 M AsO43‐, 0.005 M I‐, and 0.005 M CO32‐. If AgNO3 is slowly added, in what order would the silver salts precipitate? Ksp = 1.0 x 10‐22 For Ag3AsO4, For AgI, Ksp = 8.3 x 10‐17 For Ag2CO3, Ksp = 8.1 x 10‐12 65. Three beakers contain the following solutions: 1) 40.0 mL of 0.020 M Ca(NO3)2 2) 40.0 mL of 0.020 M Fe(NO3)2 3) 40.0 mL of 0.020 M Pb(NO3)2 If 10.0 mL of 0.050 M NaF is added to each beaker, in which beakers will a precipitate form? For...
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This homework help was uploaded on 03/28/2014 for the course CHEM 123 taught by Professor Larosa during the Spring '06 term at Ohio State.

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