Lecture 3-4

Question 1

how is adsorbtion a way to get rid of water borne contaminants:

Answer 1

because something like an arsenic species can stick onto the surface of an adsorbant material in an aqueous environment.

Question 2

Flux:

Answer 2

amount of material transferring between compartments

Question 3

Burden:

Answer 3

masses of material in each compartment

Question 4

in the kd relationship Kd= foc X Koc as foc or the organic sorbent in the solid increases what does this do to Kd?

Answer 4

Kd also increases

Question 5

organic compounds can be broken up into what 2 categories

Answer 5

hydrophilic and organophilic

Question 6

compare hydrophilic and organophilic and provide examples?

Answer 6

1. hydrophilic are polar compounds like glucose and water

2. organophilic are non-polar like cyclohexane.

Question 7

whenever you have an – attached to an electronegative element such as F or O it becomes a polar molecule

Answer 7

H

Question 8

why are nonpolars non-polar?

Answer 8

because it has no polar functional groups.

Question 9

if cyclohexane can’t dissolve in water because it is non-polar and water is polar, why can cyclohexane dissolve in gasoline?

Answer 9

gasoline is non-polar and like dissolves in like

Question 10

true or false: pressure and volume is proportional to the number of mols?

Answer 10

true