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ChemistrySOLUTIONS
chapter 15.1 and 15.3
Term | Definition |
---|---|
Solutions | Is a homogeneous mixture of two or more substances |
Molarity(M) | Is the strength or concentration of a solute Molarity= moles of solute/VOLUME of solution |
Molality(m) | Shows the concentration of a solution; the solvent (the compound is the greater amount) units are in kilograms molality=moles of solute/MASS of solvant |
Soluble | A substance that dissolves in a solvent. |
Slovent | The solvent douse the DISSOLVING (greater amount) (Ex:Water) |
Miscible | Describes two liquids that are soluble in each other. |
Saturated Solutions | Contains the maximum amount of solute that will dissolve in a given amount of solvent at a specified temp. and pressure. |
Unsaturated Solutions | Contains less dissolved solute for a given temperature and pressure than a saturated solutions. |
Polar molecule | |
3 collective properties | Vapor Pressure Boiling Point Freezing Point |
Vapor Pressure | |
Boiling Point Elevation | The temp. difference between a solution boiling point and pure solvent boiling point. ^Tb=Kbm |
Freezing Point Depression | Freezing-point depression describes the process in which adding a solute to a solvent decreases the freezing point of the solvent ^Tf=Kfm |
Insoluble | A substance that does not dissolves. |
Immiscible | Describes two liquids that can be mixed together but separate shortly after you mix them. |
Supersaturated Solutions | Contains more dissolved solute than a saturated solution at the same temperature |
Solute | The solute is the substance DISSOLVED in the solutions (less amount) (Ex: sugar,salt) |
Aqueous Solutions | Substances dissolved in water |