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What condition must an IMF be in for solutions |
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Definition
when solute to solvent attractions are greater than the solute to solvent attractions |
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Solvation where water is the solvent |
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solution of water and ionic solute |
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dominate in non polar solute solvent interactions |
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interactions between solute and solvent |
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Name the 3 steps in solivation |
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Definition
1. Expansion of solute 2. expanding solvent 3. Formation of solute solvent IMF |
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Requires input of energy to dissolve and increase of entropy |
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Solutions will occur with spontanaity if |
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Definition
energy requirments are lowered results in endothermic solution |
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particles bumping into eachother and becoming solid |
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eq is established with the solute |
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amount opf solute needed to form a saturated solution in a given amount of solute |
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more solute than can be fully dissolved |
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Polar/ non polar affect on solubility |
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Definition
Like dissolves likes. Polar/ hydrophillic Nonpolar/ hydrophobic |
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THe amount of gas dissolved in a solution is directly proportional to the pressure of the gas above the Soln |
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How does temp affect the solubilitty of solids |
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Definition
Increase in temp increases solubility |
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How does temp effect the solubility of gasses |
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Definition
increase in temp lowers solubility |
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properties that depend on the amount of solute |
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Definition
increase in concentration increase in BP delta t= Km |
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Freezing point depression |
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Definition
increase in concentration decrease in freezing point delta t= Km |
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Definition
pressure exerted by a liquid in a closed container |
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liquid with no measurable vapor pressure |
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liquid with vapor pressure adding a non lowers VP |
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movement of a solvent through a semi-permeable membrane toward the area of lower solute concentration |
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pressure neccesary to keep water from flowing across a semi permeable membrane |
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Formula for osmotic pressure |
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Definition
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solutions with particles that are too big to dissolve but too small to settle out |
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dividing lines between solutions and heterogenuos mixtures( tiny particles suspended in medium) |
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scattering of light by particles light passes through a solution but not through the collid |
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enlargong the collid particles so they can settle out to be removed from the solution |
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