Ch.18 - ElectrochemistryWorksheetSee all chapters
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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: The voltage generated by the zinc concentration cell described by,Zn(s)|Zn2+(aq, 0.100 M) || Zn2+(aq, ? M)|Zn(s)is 19.0 mV at 25°C. Calculate the concentration of the Zn 2+(aq) ion at the cathode.

Problem

The voltage generated by the zinc concentration cell described by,

Zn(s)|Zn2+(aq, 0.100 M) || Zn2+(aq, ? M)|Zn(s)

is 19.0 mV at 25°C. Calculate the concentration of the Zn 2+(aq) ion at the cathode.

Solution

concentration cell is an electrochemical cell where the anode and cathode have the same metal electrode and the electrolyte but the concentration of electrolyte in anode and cathode cells is different.

We are provided with the cell notation for zinc-based concentration cell.

cell notation is a shorthand way of writing a chemical reaction that occurs inside an electrochemical cell.


  • Cell notation is written from anode to cathode.
  • The left side of the cell notation represents oxidation (anode) reaction.
  • The right side of the cell notation represents reduction (cathode) reaction.
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