The number of grams of solute in each 100 g of solution. (Section 13.4)
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immiscible liquids
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Liquids that do not dissolve in one another to a significant extent. (Section 13.3)
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solubility
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The amount of a substance that dissolves in a given quantity of solvent at a given temperature to form a saturated solution. (Section 13.2)
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miscible
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Liquids that mix in all proportions. (Section 13.3)
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Henry's law
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A law stating that the concentration of a gas in a solution, Cg, is proportional to the pressure of gas over the solution: Cg = kPg. (Section 13.3)
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unsaturated solutions
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Solutions containing less solute than a saturated solution. (Section 13.2)
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molality
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The concentration of a solution expressed as moles of solute per kilogram of solvent; abbreviated m. (Section 13.4)
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hydrophobic
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Water repelling. The term is often used to describe a colloid. (Section 13.6)
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hydration
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Solvation when the solvent is water. (Section 13.1)
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colloids (colloidal dispersions)
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Mixtures containing particles larger than normal solutes but small enough to remain suspended in the dispersing medium. (Section 13.6)
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hydrophilic
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Water attracting. The term is often used to describe a type of colloid. (Section 13.6)
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entropy
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A thermodynamic function associated with the number of different equivalent energy states of spatial arrangements in which a system may be found. (Section 13.1)
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parts per billion (ppb)
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The concentration of a solution in grams of solute per 10^9 (billion) grams of solution; equals micrograms of solute per liter of solution for aqueous solutions. (Section 13.4)
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colligative properties
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Those properties of a solvent (vapor-pressure lowering, freezing-point lowering, boiling-point elevation, osmotic pressure) that depend on the total concentration of solute particles present. (Section 13.5)
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crystallization
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The process in which a dissolved solute comes out of solution and forms a crystalline solid. (Section 13.2)
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supersaturated solutions
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Solutions containing more solute than an equivalent saturated solution. (Section 13.2)
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solvation
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The clustering of solvent molecules around a solute particle. (Section 13.1)
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saturated solution
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A solution in which undissolved solute and dissolved solute are in equilibrium. (Section 13.2)
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parts per million (ppm)
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The concentration of a solution in grams of solute per 10^6 (million) grams of solution; equals milligrams of solute per liter of solution for aqueous solutions. (Section 13.4)