MCAT Chem - Sltns
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21 terms
Terms | Definitions |
|---|---|
 solution | mixture of multiple compounds in a single phase |
| solute | compound with lesser amount in solution |
| solvent | compound with greater amount in solution |
| colloid | a mixture with properties between those of a solution and fine suspension |
| London dispersion Forces | intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles |
| electrolyte | compound that forms ions in solution |
| solvation | when ionic compounds dissolve into ions and are surrounded by the oppositely charged ends of a polar solvent |
| hydration | solvation in water |
| aqueous phase | something that is hydrated |
| Molarity | M = mols(solute)/volume(solution) |
| molality | m = mols(solute)/kg(solvent) |
| mole fraction | x = moles(solute)/mols(sltn) |
| mass % | mass solute/mass solution * 100 |
| ppm | mass solute / mass solution * 10^6 |
| vapor pressure | pressure in space above (l) in (g)(l) equi, corresponds to tendency to vaporize |
| nonvolatile solute | a solute with no vapor pressure |
| volatile solute | a solute with vapor pressure |
| Raoult's Law | vapor pressure = mole fraction*vapor pressure (+ same for solvent if volatile) |
| common ions | ions that shift the equi |
| spectator ions | ions that don't shift equi |
| Ksp | =[A]^a[B]^b, sub in S for each conc and numbers for the coeffs to det conc if given value |
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