lect 15

Question 1

what are association colloids?

Answer 1

association colloids consist of special aggregates of ions and molecules called micelles

Question 2

what are the size of calcium stearate micelles?

Answer 2

Question 3

what are the surface properties of colloids?

Answer 3

-electrical double layer
-ion exchange

Question 4

what is the graph of electrical double layer?

Answer 4

Question 4

what is electrical double layer?

Answer 4

Question 5

what is ion exchange?

Answer 5

Question 6

what is the ion exchange?

Answer 6

Question 7

what is the retention of species by specific adsorption?

Answer 7

Question 8

what is the retention of species by non-specific adsorption?

Answer 8

Question 9

what is the graph of double layer compression mechanism?

Answer 9

Question 10

what is surface sorption by solids?

Answer 10

Question 11

what is phosphorus exchange with bottom sediments?

Answer 11

Question 12

what are the ways in which colloids are formed under specific environmental conditions?

Answer 12

-high pE env. [oxidizing (oxic) conditions]
-low pE env. [reducing (anoxic) conditions]
-low pH env.
-high pH env.

Question 13

what are colloids formed in high pE env. [oxidizing (oxic) conditions]?

Answer 13

Question 14

what are colloids formed in low pE env. [reducing (anoxic) conditions]?

Answer 14

Question 15

what are colloids formed in low pH env?

Answer 15

Question 16

what are colloids formed in high pH env.?

Answer 16