Exam III

Question 1

Neutralization: if there’s a weak acid and a strong base the pH will be _ than 7?

Answer 1

Greater

Question 2

Neutralization: strong acid, weak base; pH = _ 7

Answer 2

Less than

Question 3

Neutralization: strong acid, strong base; pH = _ 7

Answer 3

Equal to!

Question 4

Low Ksp =?

Answer 4

Low solubility

Question 5

Common Ion Effect

Answer 5

dissociation is LESS when there’s already a common ion present in the reaction

Question 6

Higher entropy=

Answer 6

More randomness

Question 7

Less entropy

Answer 7

less randomness

Question 8

Negative entropy means it is-

Answer 8

SPONTANEOUS! :D

Question 9

Positive entropy =

Answer 9

NON-spontaenous :p

Question 10

Where is the pKa located in a buffer?

Answer 10

Between 0 and 25

Question 11

Buffer

Answer 11

Weak acid and its conjugate base

Question 12

What happens after a buffer is utilized?

Answer 12

Acid concentration decreases

Question 13

Endothermic =

Answer 13

Reactant favored; non-spontanenous

Question 14

Exothermic

Answer 14

Product favored; spontaneous

Question 15

Spontaneous process

Answer 15

process that will proceed on its own

Question 16

Kinetics a factor is spontaneity?

Answer 16

NO!!

Question 17

Third Law of Thermodynamics

Answer 17

entropy of a perfectly ordered crystalline solid at 0 K is zero.