Chemistry Lect 4
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- the solute and solvent can be seperated via a semi-permiable membrane
- i.e. aerosols
_____ dissolves _____.
- Like, like
- i.e. polar dissolves polar and non-polar dissolves non-polar
m = mol of solute / kg of solvent
Parts per million
ppm = (mass of solute / total mass of solu'n) * 106
Exothermic Rxns and Bonding
a solu'n that gives off heat is creating stronger bonds within the solution
Vapor Pressure and Temp
Vapor pressure is linked to K.E. and therefore increases when temp increases
v.p.liquid = Patmosphere
v.p.solid = v.p.liquid
Vapor Pressure and Nonvolatile Solutes
Nonvolatile solutes do not contribute to the v.p. --> reaches the surface and reduces the amount of molecules "breaking free" per S.A.
Depends on Temp and Ions in solu'n
Equilibrium between precipitation and dissolution
- Ksp = products/reactants
- only changes with temperature
Increasing temp usually ____ solubility of gases.
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