• The addition of ions creates significant changes in properties of solutions.
  • Water molecules surround the ions and are somewhat bound to them.
  • Colligative properties are affected because the solvent properties are no longer the same as those in the pure solvent.
  • This must be taken into account when calculating the freezing and boiling points of electrolyte solutions.
  • Calcium chloride dissociates into three ions according to the equation: values of the freezing point elevation and the boiling point elevation for a solution of CaCl2 will be three times greater than they would be for an equal molality.
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