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Solubility Solutions

These vocabulary words are used in this unit:. Solution9. ConcentratedSolute10. Unsaturated SolutionSolvent11. Saturated SolutionMiscible12. Supersaturated SolutionImmiscible13. MolarityEndothermic14. MolalityExothermic15. Parts per millionDilute16. Polar molecule. Solubility depends upon the substances.

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Solubility Solutions

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    1. Solubility & Solutions Water Unit C.4

    3. Solubility depends upon the substances Dissolving occurs when the attraction between solute and solvent is strong. Generally this is: “like dissolves like” Polar dissolves Polar or Nonpolar dissolves Nonpolar

    4. Polar vs. Non Polar Polar Molecules: have an uneven distribution of electrons = have regions of positive and negative charge How do you tell if something is polar or not?? Polar (ionic) = 1st element is a metal/cation Non-Polar (covalent) = 1st element is a non-metal polar (ionic) solvents dissolve polar solutes non-polar (covalent) solvents dissolve non-polar solutes

    6. Solids dissolve better when: The surface area is greatest; The temperature of the solute is higher; The solute is being agitated. OR, Heat it! Crush it! Stir it!

    7. When gases dissolve: Usually exothermic (releases heat) therefore feels hot Less disorder (particles aren’t traveling as randomly)

    8. Effects of Temperature and Pressure on rate of solution

    9. Please turn to page 62 . . . In your small group, 3 or less, complete the exercise on page 62. Be sure to discuss your answers with each other, and that each of you has a chance to draw.

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