Electrochemistry

Question 1

What does q stand for?

Answer 1

Charge

Question 2

What does T stand for?

Answer 2

Time

Question 3

In what unit is current measured in?

Answer 3

Amperes (A)

Question 4

In what unit is charge measure in?

Answer 4

Coulombs (c)

Question 5

In what unit is time measured?

Answer 5

Seconds (s)

Question 6

What is Faradays constant?

Answer 6

96,500 coulombs/mol of electrons

Question 7

A device that transfers electrons from one reactant to another through a pathway

Answer 7

Galvanic cells

Question 8

Galvanic cells are always ___________. (delta G

Answer 8

Spontaneous

Question 9

Where oxidation occurs

Answer 9

Anode

Question 10

Where reduction occurs

Answer 10

Cathode

Question 11

U shaped tube containing a solution of gel with soluble ions

Answer 11

Salt bridge

Question 12

What is the function of the salt bridge?

Answer 12

Keeps solutions in have cells neutral

Question 13

The amount of charge that passes through the cross sectional area of a medium per second

Answer 13

Electric current (I)

Question 14

The __________ the voltage the greater the distance between anode and cathode

Answer 14

Greater

Question 15

The difference in potential energy between anode and cathode

Answer 15

Voltage

Question 16

A _________ voltage is thermodynamically favored

Answer 16

Positive

Question 17

Metals with more positive reduction potentials are easily ___________

Answer 17

Reduced

Question 18

Metals with more negative reduction potentials are easily ___________

Answer 18

Oxidized

Question 19

The species with the most positive, least negative reduction potential will be __________

Answer 19

Reduced

Question 20

The overall difference in PE charge between the anode and the cathode

Answer 20

The standard cell potential

Question 21

Voltaic=

Answer 21

galvanic

Question 22

A ______________ standard cell potential means that the reaction is thermodynamically favored

Answer 22

Positive

Question 23

Cell notation goes from ________ to _________

Answer 23

Anode, cathode

Question 24

In what direction do electrons flow?

Answer 24

Anode to cathode

Question 25

What would be the voltage of a galvanic cell without a salt bridge?

Answer 25

0

Question 26

A=

Answer 26

C/s

Question 27

Solid metals are not easily _________

Answer 27

Reduced

Question 28

If the Ecell value is greater than zero, the reaction is __________________ favored

Answer 28

Thermodynamically

Question 29

If the Ecell value is less than zero, than the reaction is ________________ favored

Answer 29

Not thermodynamically favored

Question 30

If if delta G is negative than the reaction is ________________ favored

Answer 30

Thermodynamically

Question 31

If delta G is positive than the reaction is ___________________ favored

Answer 31

Not thermodynamically

Question 32

Electrolytic cells are non ______________

Answer 32

Spontaneous

Question 33

In electrolytic cells the species with the most _____________ reduction potential is reduced

Answer 33

Positive

Question 34

Electrolytic reactions are always _____________________

Answer 34

Non thermodynamically favored

Question 35

In electrolytic cells, species with the most ________ reduction potential is oxidized

Answer 35

Negative