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25 Cards in this Set
- Front
- Back
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solutions |
homogenous (look the same) |
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solvent |
the substance you have more/ substance you are dissolving material in |
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solute |
substance you have less of (material you are trying to dissolve) |
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particles in liquids |
atoms/habits are spread further than in solids, allows them to dissolve other particles between them. |
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why is n2 solvent in air? |
thre is more of it 80% than everything else |
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concentration |
as you add more solute to the solvent, you get higher concentration, represented by [ ], wrong concentration can be harmful |
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saturation |
when the solute and solvent are put together, limit to how much solute can be dissolved |
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unsaturated solution |
more of the solute can be dissolved |
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saturated solution |
no more solute will dissolve |
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supersaturated solution |
unstable and temporary situation where soltuion contains more dissolved solute that it should |
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when does supersaturated happen? |
occurs when trhere is change in temp, volume |
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Molarity (M) |
used to calculate the concentration of a solution (number of moles of solute per liter) M= moles/liter |
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conversion chart metric |
kilo, hecto, deka, meter, deci, centi, milli |
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percent composition |
used by consumers to determine concentration of a solution. |
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mass/mass solutiosn |
grams of solute/ grams of solution x 100 |
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mass/volume solutions #2 |
grams/ml x 100 |
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volume/volume |
ml/ml x 100 |
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parts per million |
grams solute/ grams solution x 10000000 |
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parts per million |
grams solute/ grams solution x 1000000000 |
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colligative properties |
properties of solutions that depend on number of solute molecules in given volume of solvent |
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vapor pressure |
caused by the evaporation of molecules at the surface of liquid, |
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solution and affect on vapor pressure |
less vapor pressure because solute molecules mixed in reduce the number of solvent molecules on the surface |
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boiling point |
temp at which the vapor pressure escaping from a liquid exceeds atmospheric pressure pushing down on surface of liquid |
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boiling point impact with solution |
boiling point increases when solute is added, blocks surface of liquid from leaving |
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freezing point |
tempt at which molecules of substance no longer slide past each other |
