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Solutions

Solutions. Solution - homogenous mixture that may be solid, liquid, or gas. Composition of the solvent and solute determine whether the substance will dissolve. Hide the loot in the vent!.

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Solutions

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  1. Solutions

  2. Solution- homogenous mixture that may be solid, liquid, or gas. • Composition of the solvent and solute determine whether the substance will dissolve. Hide the loot in the vent!

  3. Solvation- the process of surrounding solute particles with solvent particles to form a solution • “Like dissolves like”

  4. Think… • You drop a sugar cube into a glass of water. It sinks to the bottom. What are some things you can do to make the sugar dissolve faster?

  5. Factors that affect the rate of solvation: • Stirring/Agitating- increases the rate of solubility. It does not affect the amount that will dissolve. • Temperature- higher temperatures have more kinetic energy, so they can dissolve particles much faster. • Particle Size- smaller sizes dissolve faster (ex: sugar cube vs. granulated sugar)

  6. Solubility • Solubility- the amount of solute that dissolves in a quantity of solvent at a given temperature and pressure. • Saturated solution- contains the maximum amount of solute for a given amount of solvent. • Unsaturated solution- contains less solute than a saturated solution. • Precipitate- insoluble solid that emerges from a solution • Miscible- two liquids dissolve each other in all proportions. • Immiscible- insoluble in one another.

  7. Some Types of Solutions Examples?

  8. Factors Affecting Solubility • Temperature and Pressure • Pressure only affects gases • Solubility increases as gas pressure increases (pop) • Solubility increases as temperature of solvent increases. • Saturated vs. Unsaturated • Supersaturated- contains more solute than it can theoretically hold.

  9. Solubility Curves

  10. Supersaturating a solution…

  11. Think back to solvation… What happens if there is no more room for water to hug the ions?

  12. Solubility Curves

  13. http://phet.colorado.edu/en/simulation/soluble-salts

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