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Chapter 14 - 2.11.11 Chapter 14 Solutions The Dissolution...

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2.11.11 Chapter 14: Solutions The Dissolution Process -solutions are homogeneous mixtures of two or more substances -dissolving medium is called the solvent -dissolved species is called the solute -there are three states of matter (solid, liquid, and gas) which are mixed two at a time gives nine different kinds of mixtures (possibilities) -seven homogenous possibilities Solute solvent example Solid liquid salt water liquid liquid mixed drinks gas liquid carbonated beverages liquid solid dental amalgams solid solid alloys gas solid metal pipes gas gas air -two heterogeneous possibilities Solid gas dust in air liquid gas clouds, fog Spontaneity of the Dissolution Process As an example of dissolution, let’s assume that the solvent is a liquid. Two major factors affect dissolution of solutes 1. Change of energy content or enthalpy of solution, H solution If H solution is exothermic (< 0) dissolution is favored.
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