Determine the oxidation number for each atom in the following molecules 1.H 2 S 2.P 2 O 5 3.S 8 4.SCl 2 5.Na 2 SO 3 6. SO 4 -2 7. NaH 8.Cr 2 O 7 -2 9.SnBr.
Redox reactins half-reactions: Reduction 2Fe 3+ + 2e - 2Fe 2+ oxidation Sn 2+ Sn 4+ + 2e - 2Fe 3+ + Sn 2+ 2Fe 2+ + Sn 4+
Electrochemical Cells. Definitions Voltaic cell (battery): An electrochemical cell or group of cells in which a product-favored redox reaction is used.
Electrochemistry Redox reactions electrochemical cells galvanic: spontaneous chemical rxns to produce electrical energy ( G = -nFE, negative) electrolytic:
Electrified Interfaces
Electrochemistry Batteries
Prentice Hall © 2003Chapter 20 For the SHE, we assign 2H + (aq, 1M) + 2e - H 2 (g, 1 atm) E red = 0.
Electroanalysis measure the variation of an electrical parameter (potential, current, charge, conductivity) and relate this to a chemical parameter (the.
