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: You are given the following three half-reactions:(1) Fe3+(aq) + e− ⇌ Fe2+(aq)(2) Fe2+(aq) + 2e− ⇌ Fe(s)(3) Fe3+(aq) + 3e− ⇌ Fe(s)(a) Calculate ΔG° for (1) and (2) from their E°half-cell values.(b) Cal

Problem

You are given the following three half-reactions:

(1) Fe3+(aq) + e ⇌ Fe2+(aq)
(2) Fe2+(aq) + 2e ⇌ Fe(s)
(3) Fe3+(aq) + 3e ⇌ Fe(s)

(a) Calculate ΔG° for (1) and (2) from their E°half-cell values.

(b) Calculate ΔG° for (3) from (1) and (2).

(c) Calculate E°half-cell for (3) from its ΔG°.