Ch.18 - ElectrochemistrySee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Consider the following standard reduction potentials in acid solution.  Which half reaction is the most favored process thermodynamically?                                                                                                 E°(V)             A)        Al3+      + 3 e–                →          Al(s)                    –1.66             B)        AgBr(s) +   e–                 →          Ag(s) + Br –        +0.07             C)        Sn4+      + 2 e–               →          Sn2+                  +0.14             D)        Fe3+      + e–                  →          Fe2+                  +0.77             E)         O2        + 4 e –  + 4 H+     →          H2O                 +1.23

Problem

Consider the following standard reduction potentials in acid solution.  Which half reaction is the most favored process thermodynamically?

                                                                                                E°(V)

            A)        Al3+      + 3 e                →          Al(s)                    –1.66

            B)        AgBr(s) +   e                 →          Ag(s) + Br         +0.07

            C)        Sn4+      + 2 e               →          Sn2+                  +0.14

            D)        Fe3+      + e                  →          Fe2+                  +0.77

            E)         O2        + 4 e   + 4 H+     →          H2O                 +1.23