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Solutions

vocab 6

TermDefinition
Precipitate A solid that forms and settles out of a liquid mixture. Use Table F to identify (insoluble)
Aqueous Solution Water that contains dissolved substances
Electrolyte A compound that conducts an electric current when in a aqueous solution or mixture in the molten state
Non-electrolyte A compound that doesn't conduct an electric current in either an aqueous solution of the molten state
Strong electrolyte Compounds that break apart (ionize) completely in solution. Soluble ionic compounds, acids, bases
Weak electrolyte Compounds that break apart partially in solutions. Insoluble ionic compounds and all covalent compounds
Solute The dissolved particles in a solution. The substance that is dissolved; lesser amount
Solvent The dissolving medium. The substance that does the dissolving; greater amount
Freezing point depression The freezing point of a solution is always lower than the freezing point of the pure solvent. It is proportional to the number of dissolved particles and the concentration
Boiling point elevation The boiling point of a solution is always higher than the boiling point of the pure solvent. It is proportional to the number of dissolved particles and the concentration
Molarity The number of moles of solute dissolved in one liter of solution
Solubility The amount of solute that dissolves in a given quantity of a solvent at a specified temperature and pressure to produce a saturated solution
Saturated solution Contains the maximum amount of solute for a given quantity of solvent at a constant temperature and pressure. Rate of dissolving = rate of crystallization
Unsaturated solution Contains less solute than saturated solution at a given temperature and pressure. Rate of dissolving is greater than rate of crystallization
Supersaturated solution Contains more solute than it can theoretically hold at a given temperature and pressure. Rate of dissolving is less than the rate of crystallization
Created by: abbeebrandow
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