Lecture 3. Review of Related Chemistry Topics

Question 1

A molar solution (M) is produced by dissolving a _________ of a water-solute substance in enough water to make a liter of solution.

Answer 1

gram of molecular weight

Question 2

Weight of a substance in ________ equal in
number to the weight of substance in
atomic weight units

Answer 2

grams

Question 3

C6H12O6

Answer 3

Gram molecular weight of glucose

Question 4

Concentration of Solutions

Concentration is expressed as the
percent composition by weight

Answer 4

Percent Solution

Question 5

Concentration of Solutions

Normal solution contains a gram equivalent weight of a substance in a liter of solution

Answer 5

Normality

Question 6

Concentration of Solutions

________ of an element is the weight in grams of the element that combines with or is otherwise equivalent to 1.008 grams of
Hydrogen.

Answer 6

Gram equivalent weight

Question 7

Concentration of Solutions

One (1) ppm is 1 part in 1 million or the value is equivalent to the absolute fractional amount multiplied by one million

Answer 7

Parts per million

Question 8

small particles suspended in water with sometimes glue-like consistency smaller than “suspension” particles and larger than true solute particles, minute size give them these properties; a mixture of two phases of matter

Answer 8

Colloids

Question 9

Properties of
colloids

Answer 9

1. Optical properties (viability
   through a microscope)
2. Kinetic properties
3. Electrical properties
4. Filtration properties

Question 10

the effect of light scattering on particles in colloid
systems, such as suspensions or emulsions

Answer 10

Tyndall effect

Question 11

random moving of particles suspended in a fluid

Answer 11

Brownian movement