Electrode Potentials

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Is the left electrode +ve/-ve? Why? Oxidation/reduction?

Answer 4

Question 5

Answer 5

Question 6

Conditions for standard hydrogen electrode? (4)

Answer 6

Question 7

Answer 7

The conc. of CUSO4 isn’t 1 moldm-3

Question 8

How to determine strongest oxidising agent?

Answer 8

SOWR at most positive E

Question 9

Answer 9

Question 10

Answer 10

Question 11

How to calculate voltage of a cell?

Answer 11

Question 12

Answer 12

Question 13

Answer 13

Question 14

Answer 14

Question 15

Answer 15

• E.M.F increases
• Mg equilibrium shifts to the left
• More electrons donated by Mg

Question 16

Answer 16

Question 17

Answer 17

Question 18

Answer 18

Question 19

Answer 19

• E.M.F increases
• Oxygen equilibrium shifts to the right
• More electrons gained by O2

Question 20

Diagram of hydrogen-oxygen fuel cell in an acidic solution?

Answer 20

Question 21

Diagram of hydrogen-oxygen fuel cell in an alkaline solution?

Answer 21

Question 22

Whats the conventional cell representation for an acidic hydrogen-oxygen fuel cell?

Answer 22

Pt(s) | H2(g) | H+(aq) || O2(g) | H+(aq),H2O(l) | Pt(s)

Question 23

Answer 23

Question 24

Answer 24

Question 25

Answer 25

Pt(s) | H2(g) | OH-(aq),H2O(l) || O2(g) | H2O(l),OH-(aq) | Pt(s)

Question 26

Answer 26

Question 27

Write IUPAC cell representations?

Answer 27

Question 28

Write IUPAC cell representations?

Answer 28

Question 29

Write IUPAC cell representations?

Answer 29

Question 30

Answer 30

Question 31

What are the half equations for hydrogen-oxygen fuel cell in an alkaline solution?

Answer 31

Question 32

What are the half equations for hydrogen-oxygen fuel cell in an acidic solution?

Answer 32

Question 33

Identify an ionic compound that could be used as a salt bridge?

Answer 33

KNO3