Ch.18 - ElectrochemistryWorksheetSee 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: What is the ΔG° (kJ/mol) for a spontaneous (voltaic) cell that uses the following half-reactions:                 Al+3 (aq) + 3 e- → Al (s)                E° = −1.66 Mn2+ (aq) + 2 e- → Mn (s)             E° = −1.18 A. −278           B. −232           C. −140           D. −46.3          E. 46.3

Problem

What is the ΔG° (kJ/mol) for a spontaneous (voltaic) cell that uses the following half-reactions:                

Al+3 (aq) + 3 e- → Al (s)                E° = −1.66

Mn2+ (aq) + 2 e- → Mn (s)             E° = −1.18

A. −278           B. −232           C. −140           D. −46.3          E. 46.3