Ch17 z5e electrochem

Electrochemistry pp Applications of Redox

17.1 Galvanic Cells ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],H + MnO 4 - Fe +2

Galvanic Cell H + MnO 4 - Fe +2 Salt Bridge allows current to flow

Galvanic Cell H + MnO 4 - Fe +2 Electrons flow in the wire, ions flow through the salt bridge

[object Object],[object Object],H + MnO 4 - Fe +2 e -

Reducing Agent Oxidizing Agent e - e - e - e - e - e - Oxidation at Anode Reduction at Cathode

Cell Potential ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

17.2 Standard Reduction Potentials ,[object Object],[object Object],[object Object],[object Object],[object Object]

Zn +2 SO 4 -2 1 M HCl Anode 0.76 1 M ZnSO 4 H + Cl - H 2 in Cathode

Standard Hydrogen Electrode ,[object Object],[object Object],[object Object],1 M HCl H + Cl - H 2 in

Z5e 841 Figure 17.5: Zn/H Galvanic Cell. Notice the electron flow also.

Cell Potential ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Z5e 842 Fig 17.6 Zn/Cu Galvanic Cell

Cell Potential pp ,[object Object],[object Object],[object Object],[object Object],[object Object]

Cell Potential pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cell Potential pp ,[object Object],[object Object],[object Object],[object Object]

Cell Potential ,[object Object],[object Object],[object Object]

Cell Potential ,[object Object],[object Object],[object Object],[object Object],[object Object]

Line Notation pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Complete Galvanic Cell Description (AP Test) pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Practice pp ,[object Object],[object Object]

Practice - Item 1 pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Practice - Item 2 pp ,[object Object],[object Object],[object Object]

Practice - Item 3 pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Practice - Item 4 pp ,[object Object],[object Object],[object Object],[object Object],[object Object]

pp Figure 17.7: A Schematic of the previous Galvanic Cell Eº = 1.95 v Be able to draw this as well as write the line notation for the AP exam.

17.3 Cell Potential, Work &  G ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Potential, Work and  G pp ,[object Object],[object Object],[object Object],[object Object]

Potential, Work and  G ,[object Object],[object Object],[object Object],[object Object]

Putting It Together pp ,[object Object],[object Object],[object Object],[object Object],[object Object]

Putting It Together pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

17.4 Cell Potential and Concentration pp ,[object Object],[object Object],[object Object],[object Object]

17.4 Cell Potential and Concentration pp ,[object Object],[object Object],[object Object]

Cell Potential pp ,[object Object],[object Object],[object Object]

Le Chatelier, ∆G, & Concentration Cells ,[object Object],[object Object],[object Object]

Le Chatelier, ∆G, & Concentration Cells pp ,[object Object],[object Object],[object Object]

The Nernst Equation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Nernst Equation continued ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Nernst Equation pp ,[object Object],[object Object],[object Object]

We’ll do “a,” “b,” & “c”. pp

E cell when [Ag 1+ ] on the right = 1.0 M pp ,[object Object],[object Object],[object Object],[object Object]

E cell when [Ag 1+ ] on the right = 2.0 M pp ,[object Object],[object Object],[object Object],[object Object],[object Object]

E cell when [Ag 1+ ] on the right = 0.10 M pp ,[object Object],[object Object],[object Object],[object Object],You will have a test question on this and it is NOT on the pre-test, so . . . Do p. 832 #53!!

E cell when [Ag 1+ ] on the right = 0.10 M pp ,[object Object],[object Object],[object Object],[object Object],[object Object],You will have a test question on this and it is NOT on the pre-test, so . . . Do p. 832 #53!!

The Nernst Equation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Nernst Equation & K pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Nernst Equation & K pp ,[object Object],[object Object],[object Object]

17.5 Batteries are Galvanic Cells ,[object Object],[object Object],[object Object]

Figure 17.13 One of the Six Cells in Storage Battery a 12-V Lead Storage Battery

Batteries are Galvanic Cells ,[object Object],[object Object],[object Object],[object Object]

Figure 17.14 A Common Dry Cell Battery

17.6 Corrosion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Water Rust Iron Dissolves - Fe  Fe +2 e - Salt speeds up process by increasing conductivity

Figure 17.17 The Electrochemical Corrosion of Iron

Preventing Corrosion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Preventing Corrosion ,[object Object],[object Object]

Figure 17.18 Cathodic Protection

[object Object],[object Object],[object Object],[object Object],[object Object],17.7 Electrolysis

1.0 M Zn +2 e - e - Anode Cathode 1.10 Zn Cu 1.0 M Cu +2 Galvanic Cell - spontaneous

1.0 M Zn +2 e - e - Anode Cathode A battery >1.10V Zn Cu 1.0 M Cu +2 Electrolytic Cell Forces the opposite reaction.

Figure 17.19 (a) A Standard Galvanic Cell (b) A Standard Electrolytic Cell

Calculating plating ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Calculating plating pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Calculating plating pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Calculating plating pp ,[object Object],[object Object],[object Object]

Calculating plating pp ,[object Object],[object Object],[object Object],[object Object]

Calculating plating pp ,[object Object],[object Object]

Calculating plating pp ,[object Object],***** ,[object Object]

Calculating plating pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Calculating plating ,[object Object],[object Object],[object Object],[object Object]

Calculating plating ,[object Object],[object Object]

Other uses pp ,[object Object],[object Object],[object Object],[object Object]

Relative Oxidizing Abilities pp ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ch17 z5e electrochem

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Ch17 z5e electrochem