C18.2 Solubility and Solutions

Cards (25)

  • a mixture of one or more solute dissolved in a solvent
    solution
  • usually a solution is made of a substance that can be dissolved with another substance
  • an example of a solution is a mixture of water and salt, the salt dissolves in the water
  • in a solution, the liquid is the solvent, while the solid is the solute
  • a substance that dissolves a solute
    solvent
  • solvent + solute = solution
  • a substance which is dissolved by a solvent
    solute
  • the only way to get a solute back from a solution is by evaporating the solvent away
  • Solubility
    The ability of a substance to dissolve in a solvent, creating a homogeneous mixture.
  • insoluble substances act like chalk in water
  • insoluble substances cannot dissolve in a liquid
  • solubility depends on the particles of a substance and the solvent
  • solubility is different for each substance since their particles are different
  • the more mass that you can dissolve in 100g of a liquid at 25 degrees, the more soluble it is
  • a saturated solution has all the solute that will dissolve in the given amount of solvent
  • a supersaturated solution has more than the maximum amount of solute that could be dissolved in the given amount of solvent
  • an unsaturated solution has less than the maximum amount of solute that could be dissolved in the given amount of solvent
  • when a supersaturated solution cools down or warms up, crystals form because there's too much solute to stay dissolved
  • saturation is the maximum amount of a substance that can be dissolved in a solution
  • solubility rules state which types of compounds are soluble in different liquids
  • the solubility of a substance in water is the amount that dissolves in 100g of water in that temperature
  • a saturated substance is a solution that has reached its maximum amount of solute
  • temperature is a factor of solubility
  • a solution is called saturated when it can dissolve no more solute at that temperature
  • a saturated solution can dissolve more solute if or when it is heated up