Analytical Chemistry (all solved correctly)

why separate compounds? correct answers 1- to isolate or concentrate components from a mixture 2- to separate a component from other species that would interfere in the analysis methods of separation correct answers extraction; crystallization; distillation; chromatography extraction correct answers method of separation; transfer of a solute from one phase to another; uses two immiscible liquids partition coefficient (extraction) correct answers k=[s2]/[s1]; used in solvent extraction q (extraction) correct answers = V1/(KV2+V1)(^n); fraction of moles in S1 chromatography correct answers method of separation; based on different distrubtion coefficients between two phases; one phase is stationary and the other is mobile mobile phase (chromatography) correct answers gas or liquid stationary phase (chromatography) correct answers liquid or solid adsorption chromatography correct answers based on solute adsorption on surface of stationary phase partition chromatography correct answers based on solute dissolving into stationary liquid ion-exchange chromatography correct answers separation based on charge size exclusion chromatography correct answers separation based on molecular size adjusted retention time correct answers T(retention)-T(mobile phase) Relative Retention correct answers T'(r2)/T'(r1); higher ratio means more separation partition coefficient (chromatography) correct answers K= (Cs)/(Cm) capacity factor (chromatography) correct answers k'; measure of retention; =K(Vs)/(Vm) =Ms/Mm =Ts/Tm =(Tr-Tm)/Tm q (chromatography) correct answers =(molesm)/(moless+molesm) =1/(1+k'); fraction of solute in mobile phase rate of travel of solute through column correct answers =V(velocity)*q(mobile)