Chemistry
Chemistry 19: 4
Homework
Electrochemical Potential
Chapter 19: 4 Homework
- Reading Preparation
- WebLecture
- Study Activity
- Preparation work for chat
- Online Quiz
- Lab Instructions
Reading Preparation
Textbook assignment: Read Kotz and Triechel, Chemistry and Chemical Reactivity Chapter 19: Section 4.
Study Notes
Kotz and Triechel, Chemistry and Chemical Reactivity Chapter 19: Sections 4.
- 19.4 The electrochemical potential of a voltaic cell is the difference in potential energy required to move electrons from electrode to the other along the connecting circuit. Half-cell potentials are measured at standard temperature and pressure for 1.0 Molar solutions (liquids) or 1.0 bar solutions (gases). Once we know the standard potentials for a half-reaction, we can predict the net change in electrical potential for combinations of half-cells, and the direction of electron flow.
Key Formula
| Principle | Formula | Notes |
|---|---|---|
| Electrochemical Cell | E°cell = E°cathode - E°anode | E°: Standard electric potential change for reduction half-reaction |
Read the following weblecture before chat: Electrochemical Potential
Study Activity
Videos for Chapter 19: Principles of Chemical Reactivity: Entropy and Free Energy
Review the Videos at Thinkwell Video Lessons.
- Under "ELECTROCHEMISTRY"
- Galvanic Cells
- Standard Reduction Potentials
- Using Standard Reduction Potentials
- Galvanic Cells
Use the Electrolysis simulation to run a virtual electrolysis experiment.
- Read the Overview and Learning Outcomes, then click on "Experiment".
- Select the option to run the demonstration.
- Which metal is the anode? Which is the cathode?
- Does oxidation or reduction occur at the anode? Which occurs at the cathode?
- What is the initial mass of the anode? Of the cathode?
- What are the finam masses of each?
- Which increased in mass? Which decreased in mass?
- Which way do the electrons flow?
Chat Preparation Activities
- Essay question: The Moodle forum for the session will assign a specific study question for you to prepare for chat. You need to read this question and post your answer before chat starts for this session.
- Mastery Exercise: The Moodle Mastery exercise for the chapter will contain sections related to our chat topic. Try to complete these before the chat starts, so that you can ask questions.
Chapter Quiz
- There is no chapter quiz YET.
(Aligns to) AP LAB #16 GUIDED INQUIRY — — Building an Electrochemical cell — Phase II
Build the cell you designed in Phase I and calibrate its output.
Resources:
- AP2009 20 Determination of Electrochemical Series
- AP2009 21 Measurements using electrochemical cells and electroplating
- IGHCE Lab 16.1 OR HSCKM X-1 Produce Hydrogen and Oxygen by Electrolysis of Water
- IGHCE Lab 16.2 OR HSCKM X-2 Observe the Electrochemical Oxidation of Iron
- IGHCE Lab 16.3 OR HSCKM X-3 Measure Electrode Potentials
- IGHCE Lab 16.4 Observe Energy Transformation
- IGHCE Lab 16.5 OR HSCKM X-4 Build a Voltaic Cell
- IGHCE Lab 16.6 Build a Battery
© 2005 - 2024 This course is offered through Scholars Online, a non-profit organization supporting classical Christian education through online courses. Permission to copy course content (lessons and labs) for personal study is granted to students currently or formerly enrolled in the course through Scholars Online. Reproduction for any other purpose, without the express written consent of the author, is prohibited.