16. Introductory electrochemistry

Question 1

What are redox reactions?

Consider the reaction Fe³⁺ + V²⁺ → ← Fe²⁺ + V³⁺

Which reaction is reduction / oxidation? Which is reduced / oxidised? Which is reducing / oxidising agent?

Answer 1

Question 2

What is the christmas tree reaction?

Answer 2

Question 3

Explain the structure of a galvanic cell

Answer 3

Question 4

What are spectator ions?

Answer 4

Ions which do not take part in electrochemical reactions

Question 5

How is spontaneity predicted in electrochemical reactions?

Answer 5

Using the cell potential E_cell

Question 6

Define cell potential

Answer 6

Question 7

How is the electrode reduction potential determined?

Answer 7

For each element - compared to hydrogen potential - standard reduction potential

Question 8

What is the equation for calculating the E_cell?

Answer 8

E_cell = E_cathode - E_anode

Question 9

What is the standard cell notation?

Answer 9

Question 10

What is the standard cell notation for the following redox reaction?

Answer 10

Question 11

What is the proceeding redox reaction and how E_cell has to be calculated?

Answer 11

Question 12

What is the proceeding redox reaction and how E_cell has to be calculated?

Answer 12