1. Quantitative Chemical Analysis
Daniel C. Harris
Quantitative Chemical Analysis
Seventh Edition
Chapter 14
Electrochemistry
Copyright © 2007 by W. H. Freeman and Company

3. F = (6.022 x 1023 mol-1) x (1.602192 x 10-19 C) = 96,484 C mol-1
How much? – Faraday’s constant.
F = (6.022 x 1023 mol-1) x ( x C)
= 96,484 C mol-1

4. Faraday

6. Electricity
Current = Charge/time - I = Q/t
[Ampere]=[Coulomb]/[sec]
Potential = Current x Resistance - E = I R (Ohms law)
[Volt]=[Ampere] [Ohm]

7. So what is resistance?
NB: Potential is relative!

8. Work = Potential x Charge - W = E q
[Joule] = [Volt] [Coulomb]

19. NERNST EQUATION

20. NERNST EQUATION
At 25 oC

21. NERNST EQUATION
Walther Hermann Nernst
1864–1941

22. NERNST EQUATION

23. NERNST EQUATION

24. THERMODYNAMICS and equilibrium

25. THERMODYNAMICS and equilibrium

26. NERNST EQUATION

27. 0.010 M Cd(NO3)2(aq)
0.50 M AgNO3(aq)

28. 0.50 M AgNO3(aq)
0.010 M Cd(NO3)2(aq)

29. 0.50 M AgNO3(aq)
0.010 M Cd(NO3)2(aq)
My way: