experiment 1

Question 1

a measure of hydrogen ion concentration

Answer 1

pH

Question 2

used to measure and identify whether a substance is an acid, base or neutral

Answer 2

pH scale

Question 3

pH scale of neutral

Answer 3

7

Question 4

pH scale of acid

Answer 4

0-6.9

Question 5

pH scale of base

Answer 5

7.1-14

Question 6

determining the pH of pharmaceuticals is important in determining their _________ and _________

Answer 6

activity and stability

Question 7

refers to the quantity of solute that dissolves in a given amounts of solvent

Answer 7

solubility

Question 8

the solubility of a solute depends on the:

Answer 8

nature of solute and solvent
amount of solute
temperature of the solvent

Question 9

the determination of moisture/water content of pharmaceuticals and other products is on of the _______ methods that a medicinal chemist is required to make

Answer 9

quality control

Question 10

used in the preparation of many materials and could be present as a combined constituent

Answer 10

water

Question 11

an analytical procedure for qualitatively assessing or quantitatively measuring the presence and amount of a target quantity of a substance

Answer 11

assay

Question 12

one of the techniques employed in assay procedures is ____________

Answer 12

volumetric analysis

Question 13

this procedure involves the addition of a specific volume of a solution of known concentration to a solution of unknown concentration

Answer 13

volumetric analysis

Question 14

H+ donor OH- donor

Answer 14

arrhenius theory

Question 15

electron acceptor and donor

Answer 15

lewis

Question 16

proton donor and accpetor

Answer 16

bronted-lowry

Question 17

sour taste

Answer 17

acid

Question 18

bitter taste

Answer 18

base

Question 19

litmus: blue to red

Answer 19

acid

Question 20

litmus: red to blue

Answer 20

base

Question 21

Feel slippery

Answer 21

base

Question 22

Phenolphthalein: Pink to violet

Answer 22

base

Question 23

Phenolphthalein: colorless

Answer 23

acids

Question 24

Methyl orange: pink/red

Answer 24

acid

Question 25

NaOH, KOH, Ca(OH)2

Answer 25

base

Question 26

solubility decreases with increase in temp (Mg citrate)

Answer 26

exothermic

Question 27

solubility increases with increase in temp

Answer 27

endothermic

Question 28

as temperature ________, solubility of gas _________

Answer 28

increases, decreases

Question 29

the solubility of a gas increases as pressure increases

Answer 29

henry's law

Question 30

presence of salt decreases solubility

Answer 30

salting out

Question 31

presence of salt increases solubility

Answer 31

salting in

Question 32

how much water is in a product. It influences the physical properties of a substance, including weight, density, viscosity, conductivity, and others. It is generally determined by weight loss upon drying.

Answer 32

moisture content