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Chemistry LibreTexts

5: Chapter 5 - Solution Chemistry

  • Page ID
    200124
    • 5.1: Prelude to Solutions
      A solution is a homogeneous mixture-a mixture of two or more substances that are so intimately mixed that the mixture behaves in many ways like a single substance. Many chemical reactions occur when the reactants are dissolved in solution. In this chapter, we will introduce concepts that are applicable to solutions and the chemical reactions that occur in them.
    • 5.2: Definitions
      Solutions are composed of a solvent (major component) and a solute (minor component). Concentration is the expression of the amount of solute in a given amount of solvent and can be described by several qualitative terms. Solubility is a specific amount of solute that can dissolve in a given amount of solvent. "Like dissolves like" is a useful rule for deciding if a solute will be soluble in a solvent.
    • 5.3: The Mole
      The mole is a key unit in chemistry. The molar mass of a substance, in grams, is numerically equal to one atom's or molecule's mass in atomic mass units.
    • 5.4: Quantitative Units of Concentration
      Quantitative units of concentration include molarity, molality, mass percentage, parts per thousand, parts per million, and parts per billion.
    • 5.5: Dilutions and Concentrations
      Calculate the new concentration or volume for a dilution or concentration of a solution.
    • 5.6: Colligative Properties of Solutions
      Colligative properties depend only on the number of dissolved particles (that is, the concentration), not their identity. Raoult's law is concerned with the vapor pressure depression of solutions. The boiling points of solutions are always higher, and the freezing points of solutions are always lower, than those of the pure solvent.

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