PHYPHARM QUIZ 1

Question 1

considered to be a bounded space or an exact quantity of material

Answer 1

System

Question 2

consists of at least two phases with one or more dispersed (internal) phases contained in a single continuous (external) phase.

Answer 2

Dispersion

Question 3

defined as a distinct homogeneous part of a system separated by definite boundaries from other parts of the system

Answer 3

Phase

Question 4

Material substances can be mixed together to form a variety of pharmaceutical mixtures (or dispersions) such as?

Answer 4

true solutions, colloidal dispersion and coarse dispersion

Question 5

A mixture of two or more components that forms a homogeneous molecular dispersion

Answer 5

True solution

Question 6

A one-phase system

Answer 6

True solution

Question 7

The dispersed phase completely dissolves, cannot scatter light, and cannot be visualized using microscopy

Answer 7

True solution

Question 8

Represents a system having a particle size intermediate between that of a true solution and a coarse dispersion, roughly between 1 to 500 nm.

Answer 8

Colloidal Dispersion

Question 9

What are the examples of colloidal Dispersion?

Answer 9

blood, liposomes, and zinc oxide paste.

Question 10

A system having a particle size greater than ~ 500 nm (0.5 um)

Answer 10

Coarse dispersion

Question 11

Two common pharmaceutical coarse dispersions are?

Answer 11

emulsions(liquid-liquid) and suspension (solid-liquid)

Question 12

aka molecular dispersions?

Answer 12

True solution

Question 13

composed of two substances is known as a binary solution, and the components are referred to as the solvent and solute.

Answer 13

True solutions

Question 14

The physical properties of substances can be classified as?

Answer 14

Colligative
Additive
Constitutive

Question 15

Depend mainly on the number of particles in a solution.

Answer 15

Colligative

Question 16

What are the examples of colligative?

Answer 16

Osmotic pressure, Vapor pressure lowering, Freezing point depression, and Boiling point elevation

Question 17

Depends on the total contribution of atoms in the molecule or on the sum of the properties of the constituents in a solution

Answer 17

Additive

Question 18

What are the examples of Additive?

Answer 18

Molecular Weight

Question 19

Depends on the arrangement and to a lesser extent on the number and kind of atoms within a molecule.

Answer 19

Constitutive

Question 20

Give the examples of Constitutive

Answer 20

Refractive index, Optical rotation

Question 21

In the field of thermodynamics, physical properties of systems are classified as

Answer 21

Extensive
Intensive

Question 22

which depends on the quantity of matter in the system

Answer 22

Extensive

Question 23

Give the example of Extensive?

Answer 23

mass and volume

Question 24

which are independent of the amount of substances in the system

Answer 24

Intensive

Question 25

Give the example of intensive?

Answer 25

temperature, pressure, density, surface tension and viscosity of a pure liquid.

Question 26

is defined as a chemically and physically homogeneous mixture of two or more substances.

Answer 26

Solution

Question 27

is a mixture of only two components. These 2 components are called the solute and solvent.

Answer 27

Binary solution

Question 28

Gas Gas

Answer 28

Air

Question 29

Liquid Gas

Answer 29

Water in oxygen

Question 30

Solid Gas

Answer 30

Iodine vapor in air

Question 31

Gas Liquid

Answer 31

Carbonated Water

Question 32

Liquid Liquid

Answer 32

Alcohol in water

Question 33

Solid Liquid

Answer 33

Aqueous sodium chloride solution

Question 34

Gas Solid

Answer 34

Hydrogen palladium

Question 35

Liquid Solid

Answer 35

Mineral oil in paraffin

Question 36

Solid Solid

Answer 36

Gold- silver mixture, mixture of alums

Question 37

Solutes are mainly divided into two?

Answer 37

electrolytes and non electrolytes

Question 38

are substances that do not ionize when dissolved in water and therefore do not conduct an electric current through the solution.

Answer 38

Non electrolyte

Question 39

What are the examples of non electrolyte?

Answer 39

sucrose, glycerin, naphthalene and urea

Question 40

are substances that form ions in solution, conduct electric current, and show apparent “anomalous” colligative properties than nonelectrolytes.

Answer 40

Electrolyte

Question 41

What are the examples of electrolyte?

Answer 41

HCl & sodium sulfate (strong electrolytes) and ephedrine & phenobarbital (weak electrolytes).

Question 42

Greek name of colligative properties?

Answer 42

“collected together”

Question 43

What are the four colligative properties?

Answer 43

Vapor pressure lowering Boiling point elevation Freezing point depression Osmotic pressure