MOLECULAR DISPERSIONS

Question 1

dispersed phase completely dissolved – homogenuous molecular dispersion

Answer 1

TRUE SOLUTION

Question 2

particle size of true solution

Answer 2

below 1nm

Question 3

can’t scatter light and can’t be visualize using the microscope

Answer 3

TRUE SOLUTION

Question 4

Multi-component – mixture of two or more substances, forming a single phase

Answer 4

TRUE SOLUTION

Question 5

2 components

Answer 5

DISPERSED PHASE
DISPERSION MEDIUM

Question 6

internal phase

Answer 6

DISPERSED PHASE

Question 7

external phase

Answer 7

DISPERSION MEDIUM

Question 8

• The diameter of particles is roughly 1 to 500 nm
• Falls between true solution and coarse dispersion

Answer 8

COLLOIDAL SOLUTION

Question 9

• The diameter of particles is greater than 500 nm
• 2 or more phases

Answer 9

SUPENSION & EMULSIONS

Question 10

Components/Constituents of true solutions

Answer 10

solute
solvent

Question 11

lesser amount (solid)

Answer 11

SOLUTE

Question 12

greater amount (liquid, water)

Answer 12

SOLVENT

Question 13

solute + solvent

Answer 13

SOLUTION

Question 14

used to indicate a multi-compartment system in which one or more solute is dissolved in a solvent.

Answer 14

SOLUTION

Question 15

Drug properties in solution are important because a drug solution is dispersed in

Answer 15

MOLECULAR LEVEL

Question 16

essential for a drug to exert its chemical, biochemical, and pharmacological effects.

Answer 16

DRUG PROPERTIES

Question 17

The quantity of a drug that indicates the strength of its chemical and pharmacological activities is not the weight of the drug, but rather the number of molecules or ions available for the drug action.

Answer 17

SOLUTE

Question 18

used to describe drug’s pharmacologic action

Answer 18

CONCENTRATION / MOLECULAR EXPRESSIONS

Question 19

Solutes are expressed in

Answer 19

moles, osmoles, meqwt

Question 20

• A substance (an acid, base, or salt) that is in an aqueous solution ionizes to positive ions (cations) and negative ions (anions)
• Has greater freezing point depression and boiling point elevation than do non-electrolytes of same concentration

Answer 20

ELECTROLYTES

Question 21

• Substances that do not ionize when dissolve in water and therefore do not conduct electricity through the solution.
• Lesser greater freezing point depression and boiling point elevation

Answer 21

NON-ELECTROLYTES

Question 22

almost all drugs are

Answer 22

organic compounds

Question 23

• Substances that completely ionize in water
• Degree of ionization is pH independent
• ionic compounds

Answer 23

STRONG ELECTROLYTES

Question 24

• Substances that partially ionize in water
• Degree of ionization is pH dependent
• organic compounds w/ EN element

Answer 24

WEAK ELECTROLYTES

Question 25

a prescription medicine used to treat the symptoms of **low blood pressure** during **anesthesia** (**hypotension**)

Answer 25

EPHEDRINE

Question 26

A solution composed of **only two substances** (a solvent & a solute)

Answer 26

BINARY SOLUTION

Question 27

physical properties of systems that **depend** on the **quantity** of the **matter** in the system

Answer 27

EXTENSIVE PROPERTIES

Question 28

physical properties that are **independent** of the amount of the substances in the system

Answer 28

INTENSIVE PROPERTIES

Question 29

depend mainly on the **number of particles** in a solution

Answer 29

COLLIGATIVE PROPERTIES

Question 30

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

Answer 30

ADDITIVE PROPERTIES

Question 31

depend on the **arrangement** and a **lesser extent** on the **number** and **kind** of **atoms** withinn a molecule

Answer 31

CONSTITUTIVE PROPERTIES

Question 32

can be expressed either in terms of the **quantity of solute** in a **definite volume of solution** or as the **quantity of solute** in a **definite mass of solvent or solution**

Answer 32

CONCENTRATION OF A SOLUTION

Question 33

expressions **commonly used** in **analytical work**

Answer 33

MOLARITY & NORMALITY

Question 34

**moles** of solute in 1L of solution

Answer 34

MOLARITY

Question 35

**gram equivalent weights** of solute in 1L solution

Answer 35

NORMALITY

Question 36

**moles** of solute in **1000g** of solvent

Answer 36

MOLALITY

Question 37

**grams** of **solute** in 100g of solution

Answer 37

%w/w

Question 38

**milliliters of solute** in 100mL of solution

Answer 38

%v/w

Question 39

**grams of solute** in 100mL of solution

Answer 39

%w/v