Consider the following data:   Lattice Energy   CaCl2(s) –2247 kJ/mol –46 kJ/mol CaI2(s) –2059 kJ/mol –104 kJ/mol Calculate the enthalpy of hydration for calcium chloride.    =   kJ/mol Calculate the enthalpy of hydration for calcium iodide.  = kJ/mol Based on your answers, which ion, Cl- or I-, is more strongly attracted to water?

Chemistry: An Atoms First Approach
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Author:Steven S. Zumdahl, Susan A. Zumdahl
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Chapter10: Properties Of Solutions
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Problem 40E
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Consider the following data:

  Lattice Energy  
CaCl2(s) –2247 kJ/mol –46 kJ/mol
CaI2(s) –2059 kJ/mol –104 kJ/mol
  1. Calculate the enthalpy of hydration for calcium chloride.

     

     =   kJ/mol

    Calculate the enthalpy of hydration for calcium iodide.

     = kJ/mol

  2. Based on your answers, which ion, Cl- or I-, is more strongly attracted to water?
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