Topic 8 - Energy from electrons I

Question 1

Redox =

Answer 1

electron donation by a reductant is coupled to simultaneous electron acceptance by an oxidant

Question 2

How is the strength of an oxidant/reductant measured?

Answer 2

The reduction potential. It shows the ability to donate/accept an electron. Reductants have a more negative potential than oxidants. Electrons flow from negative to positive.

Question 3

What is E0 for a hydrogen electrode? at pH=0

Answer 3

0.00 V

Question 4

What is E0’ for a hydrogen electrode?

Answer 4

-0.43 V (at pH 7)