NYS Chemistry Regents
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Vapor Pressure | the pressure a liquid exerts on its surface, as it tries to become a gas.
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| Parts per million (PPM) | grams solute/grams solution x 1,000,000
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| Saturated | solution that has as much solute dissolved as is possible for given conditions
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| Supersatured | solution that has more solute dissolved than should be possible at given temp and pressure.
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| Unsaturated | solution that can still have more solute dissolved in it at given conditions.
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| Boiling point elevation & Freezing point depression | Changes in the physical properties of a solution containing a nonvolatile solute. As concentration increases, so does the effect on BP
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| Electrolyte | a solution that conducts electricity because it has charges that can move around. Acids, bases and salts solutions.
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| Miscible | two liquids can make a non-layered (homogeneous) mixture. They’re Mixable!
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| Solute | The substance that gets dissolved when making a solution. (present in smaller amount)
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| Solvent | the chemical that “does the dissolving” the “dissolver” (present in greater amount)
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| Nonelectrolyte | a solution that does NOT conduct electricity because it doesn’t have any charges that can move around.
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| Immiscible | two liquids that cannot mix together. Will always be heterogeneous.
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| Concentration | A measure of how strong a solution is. Calculation by dividing the amount of solute by the amount of solvent. Can be Molarity, PPM, or percent.
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| Dilute | A general term for a concentration that is weak. As a verb, it means to add water to lower the concentration.
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| Colligative Properties | Characteristics of a Solution that depend on the nature and amount of solute dissolved. Vapor pressure reduction, FP depression and BP Elevation are examples.
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| Dissolution (dissolving) | 3 step process: 1. breaking old solute attractions; 2. breaking solvent attractions; 3. solvation
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