u10lectout

u10lectout - Unit 10: Solutions Name: _ Solution...

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Unit 10: Solutions Name: _______________________ Solution Definitions solution : a homogeneous mixture -- -- e.g., alloy : a solid solution of metals -- e.g., solvent : the substance that dissolves the solute soluble : “will dissolve in” miscible : refers to two liquids that mix evenly in all proportions -- e.g., food coloring and water Factors Affecting the Rate of Dissolution 1. temperature 2. particle size 3. mixing 4. nature of solvent or solute Classes of Solutions aqueous solution : solvent = amalgam : solvent = e.g., dental amalgam tincture : solvent = e.g., tincture of iodine (for cuts) organic solution : solvent contains ___________ 1
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e.g., gasoline, benzene, toluene, hexane Non-Solution Definitions insoluble : “will NOT dissolve in” e.g., immiscible : refers to two liquids that will NOT form a solution e.g., suspension : appears uniform while being stirred, but settles over time Molecular Polarity nonpolar molecules: -- e are shared equally -- tend to be symmetric e.g., polar molecules: -- e NOT shared equally e.g., “Like dissolves like.” Using Solubility Principles Chemicals used by body obey solubility principles. -- water-soluble vitamins : e.g., -- fat-soluble vitamins : e.g., Dry cleaning employs nonpolar liquids. -- polar liquids damage wool, silk
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u10lectout - Unit 10: Solutions Name: _ Solution...

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