c103-sp10-0526 - Chemistry 103 Spring 2010 Today 1. Cell...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 103 Spring 2010 Today 1. Cell voltage and Gibbs free energy. 2. Stoichiometry of transferred electrons. Announcements 1. Ch. 14-18 OWL homework is active. 2. CSULA closure on May 31 (holiday). 3. Final exam on Monday, June 7, 4:30 PM. Chapters 14 – 18. Review Electrochemical cells require a salt bridge , which provides excess ions to compensate for generating and draining the ions in the half-cells. Figs. 18.3, 18.5, and others. The cell voltage equals Eº cell = Eº cathode anode , where Eº cathode and Eº anode are standard reduction potentials for reduction half-reactions that have been measured and tabulated. Table 18.1, p. 663.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chemistry 103 Spring 2010 2 The OWL assignments focus more on the salt bridge allowing ions to migrate between the compartments, rather than acting mainly as a supply of ions. Example : Synonyms for electrochemical cell: voltaic cell, battery, galvanic cell.
Background image of page 2
Chemistry 103 Spring 2010 3 Cell voltage and Gibbs free energy Characteristics of processes that favor products: Decrease Gibbs free energy ( Δ G < 0). Equilibrium constant greater than 1 (K > 1). Positive cell voltage (E cell > 0). These observations are not coincidence.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 03/06/2011.

Page1 / 13

c103-sp10-0526 - Chemistry 103 Spring 2010 Today 1. Cell...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online