NSCI 1321 Chapter Notes - Chapter 4: Oxidation State, Electronegativity, Fluorine
15 Feb 2017
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Ionic theory of solutions and solubility rules (4. 1) Arrhenius proposed the ionic theory of solutions to account for the electrical conductivity of water. Certain substances produce freely moving ions when they dissolve in water, and these ions conduct electric current in an aqueous solution. An electrolyte is a substance that dissolves in water to give an electrically conducting solution. A nonelectrolyte is a substance that dissolves in water to give a non-conducting or very poorly conducting solution. Solutions that are poor conductors have less or no ions. Solutions with good conductivity have plenty of ions. A strong electrolyte is an electrolyte that exists in solution almost entirely as ions. A weak electrolyte is an electrolyte that dissolves in water to give a relatively small percentage of ions. Determine whether the following compounds are soluble or insoluble in water: hg2cl2 (rule 3, ki (rule 1 and 3)
