Popular in General Chemistry
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This 2 page Class Notes was uploaded by Jacob Edwards on Friday January 29, 2016. The Class Notes belongs to 1020 at Clemson University taught by Hickman, Thomas D in Winter 2016. Since its upload, it has received 23 views. For similar materials see General Chemistry in Chemistry at Clemson University.
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Date Created: 01/29/16
Solubility Solutions- Solution=solute+solvent o Solute- is dissolved o Solvent- Does dissolving “Like dissolve Like’ Solutes will dissolve in solvents that have same intermolecular forces o If ΔH-TΔS is (-) then a homogeneous solution forms o The ΔS in forming a solution is always positive o If solutionsolute solvents exothermic o If solutionsolute solvents endothermic o If two materials are almost the same (similar IMF’s) then ΔH solution Factors affecting solubility Gases dissolved in liquids will increase solubility as the pressure of the gas (S) increase Henry’s Law: The solubility of a gas is equal to a constant times the pressure of a gas S=K PH gas Temperature plays an important role in solubility o As temperature increases the solubility of liquids and solids in water usually increase Colligative Properties Solution=volatile solvent+nonvolatile solute Entropy driven therefore it depends on number of particles An ionic salt will dissociate and will form electrolytes when dissolved in water A nonvolatile solute has a Vapor pressure of 0 A higher volatility means there will be a higher vapor pressure Vapor Pressure- the pressure exerted by the gas phase particles once equilibrium is reached with a liquid Equilibrium occurs when rate of vaporization is equal to the rate of condensation VP increases as… o Temperature increases o Intermolecular forces decrease External pressure and surface area do not affect Vapor Pressure Boiling point- the temperature when the vapor pressure of the liquid equals the external pressure Pressure affects the whole system not just the surface VPsolutionole Fraction) solvent solvent molessolvent Mole Fractionsolvent molessolvent+i(molessolvent) I=Vant Hoff Factor
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