Grade 12U University Chemistry
2013-14
Unit 5 Outline: Electrochemistry
Overall expectations
Block
• demonstrate an understanding of fundamental concepts related to
oxidation-reduction and
the interconversion
of chemical and electrical energy;
• build and explain the functioning of simple galvanic and electrolytic cells; use equations to describe these cells;
and solve quantitative problems related to electrolysis;
• describe some uses of batteries & fuel cells; explain the importance of electrochemical technology to the
production & protection of metals; and assess environmental & safety issues associated with these technologies.
Key Topics & Key Terms (Chapters 9 & 10)
Homework
- Textbook
- additional
worksheets
a) Oxidation/reduction reactions
 Write balanced reduction/oxidation reactions
b) Electrochemical cells
 Understand the structure of electrochemical cells and how they work
c) Faraday’s law
 Understand, determine and apply Faraday’s law
d) Applications of electrochemical processes
 Describe an application of electrochemical cells and processes
1
Introductory Activities
1) Diagnostic Activity -“Are you Ready”
2) Complete each section “Practice questions” as well as
those indicated here as required
3) Building REDOX clock, paper towel demo
2
Chapter 9 –Electric Cells (p598, ppt 1)
Electron Transfer Reactions (9.1)
-electron transfer reactions, half reaction equations
-assigning oxidation numbers, recognizing redox rxns
-oxidizing and reducing agents
3
4
Pg 596 Q1-3,5-7,9,13,16
Key terms-oxidation, reduction, half reaction, REDOX,
oxidation number, oxidizing agent, reducing agent
Balancing REDOX Reactions (9.2 ppt 1)
-oxidation number method
-half reaction method
Predicting Redox Reactions (9.3)
-relative strengths of oxidizing and reducing agents
-standard reduction potentials table (Ap B7 pg 729)
Pg 607 Q2-4,6,9,10
Pg 617 Q1-5, 8,10
Quiz #1
(KU, TI, W-3)
Pg 623 Q1,3,4,6-8
Check:
5
Chapter 9 - Self-Quiz p627 Q1-9,11,12,15,17, Review p 628
Q1,2,4,6,7,9,11,13,14,18,19,21,23,24,26,30,35,38,40,44,52,53,57,58
Check:
Chapter 10 Electrochemical Cells
6
7
7
8
9
10
Galvanic Cells (10.1)
-components of a galvanic cell
-predicting cell reactions and equations
-inert electrodes, line notation
Key terms-electrodes (anode, cathode, inert), electrolytes, salt
bridge, galvanic cell, half cells
Standard Reduction Potentials (10.2)
-Table 1 p646
-cell potential, standard cell potential, standard hydrogen half-cell
- ∆Ero cell and spontaneity, predicting standard cell potentials
Key terms-cell potential, standard cell, standard reduction
potential, half cells
Cells and Batteries (10.3)
-cell arrangements in batteries
-primary and secondary cells
-commercial cells and batteries, fuel cells
Key terms-battery, primary vs secondary cells
Corrosion (10.6)
-oxidation of metals, rusting
-methods to prevent corrosion
Key terms-corrosion, galvanize, sacrificial anode, cathodic
protection, impressed current
Electrolysis (10.7)
-electrolytic cells, electrolysis of water
-comparing galvanic and electrolytic cells
-commercial electrolytic processes, electroplating
Key terms-electrolytic cell, electrolysis, electroplating
Chapter 10 Self-Quiz p677 Q1-9,11,16,
Review p 678 Q1-5,7,13,14,16,17,19,21,29,34,41,45,47,56,62
11
Unit 5 Review Self-Quiz p686 Q1-19,21,23,24,27,29,33-35
Review p 688 Q1,2,5,7-9,12,14,15,17,18,2022,24,26,30,39,41,42,46,49,50,51,55,57,58,66,67,69,72,7577,79,80,87,94,104,106,109,120
12
FINAL EVALUTION: Unit 5 Test (KU/Cm/TI/Ap; W-5)
Pg 641 Q2,4,5,7
Lab #1
(TI, Cm, W-3)
Pg 648 Q2,4-6,8
Quiz #2
(KU,Cm,Ap, W3)
Pg 654 Q2,7
Pg 662 Q1,3,4,7
Lab #2
(TI, Ap, W-3)
Pg 670 Q3,5,7