Fermentation Flashcards
what is raoults law
the vapor pressure of component X is equal to the product of the vapor pressure of the pure component x. and the mole fraction of comp x in the liquid mixture.
what is dalton’s law
the mole fraction of component X in the vapor at a given temp is equal to the partial pressure of X divided by the total pressure
is the ethanol poduced in lab more or less dense than pure ethanol
more dense due to H2O impurity
what is azeotrope
a mixture of two liquids thathas a constant boiling point and composition thoughout distillation
what is a theoretical plate
one vaporization and condensation even
what are the three components for theoretical plate
of components in mixture, peak area, and retention time
what retention time is the shortest
least intermolecular force
how many theoretical plates needed to get over 96% purity of A
3
can a mixture of a solution have a constant boiling point
yes such as an azeotrope
how is absolute (100%) ethanol industrially produced
benzene is added
what are some other methods for removing water from azeotropic mixtures
use chemicals that react with water to form new compounds and then distill pure solvent from mixture
monosaccharide
class of sugars that cannot be hydrolyzed to give a simpler sugar
disaccharide
class of sugars that feature two monosaccharide residues
polysaccharide
carbohydrate with more than two monosaccharide units
enzyme
a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
