Colligative Property / Buffer Flashcards
Define freezing point
Temperature at which the solid and the liquid phases are in equilibrium at one atmosphere
Buffered solution usually consist of _______ and its ________
Weak acid
Conjugate base
Vapor pressure of a solvent is _____ when a nonvolatile solute is added.
Lowered
Four collgative properties of a solution are
Vapor pressure lowering
Boiling point elevation
Freezing point depression
Osmotic pressure
The vapor pressure of the solution is lower than the vapor pressure of _______
Pure solvent
Solution has a lower ________ and a higher ________ than the pure solvent
Melting point
Boiling point
How is dissolution different from solubility?
Dissolution is dependent on solubility , but the reverse is not true
Define diffusion rate of a drug in a liquid
The change in concentration of dissolved drug over a time interval
The only factor according to noyes Whitney equation that you can change is ____
Surface area
What testing is used to establish bio equivalence from batch to batch, process monitoring/quality control and formulation development?
Dissolution testing
