الفهرس 
Introduction
The density modelOnly 14 pages are availabe for public view
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Abstract
This thesis presents the volumes of electrolytes and ions in different solvents. The electrolytes used are sodium fluoride, potassium fluoride, potassium chloride, potassium iodide and barium chloride. Also the volumes of sodium, potassium, barium, fluoride, chloride and iodide ions were evaluated. Different volumes were evaluated in pure solvents for all electrolytes beside that, volumes of sodium fluoride in mixed ethanol - water solvents at different temperatures are evaluated. Molar solubilities, conductivities, association parameters for sodium fluoride in mixed aqueous-ethanol solvents were discussed and represented at different temperatures.