Module 11 Overview & Instructions

 

PRT 1220Electrochemistry

Foreword

This week marks the end of new material for this course.  Be sure to register for a day and time for your final exam next week.

Questions and Answers

Whatever you're struggling with this week, somebody else in our section probably is struggling with it, too.  Post your question on the Module 11 Q&A Board.

If you know the answer to someone's question, post it.  It's almost a certainty that more people in our section than just the person who posted the question want to know the answer.

 

Learning Outcomes/Objectives

By the conclusion of this learning module, you should be able to:

  • understand and label the important parts of a diagram of a voltaic (galvanic) cell.
  • identify the half-reactions taking place at each electrode in a voltaic (galvanic) cell.
  • understand the idea of standard reduction potential.
  • rank the relative ease of reduction or oxidation of different species given their standard reduction potentials.
  • calculate the overall potential for a voltaic (galvanic) cell.
  • interpret cell notation.
  • identify the strongest reducing agent and the strongest oxidizing agent from a list of chemical species and their standard reduction potentials.
  • calculate the free-energy change for a redox reaction using the cell potential.
  • calculate the equilibrium constant for a redox reaction using the standard cell potential.
  • understand and use the Nernst equation for non-standard conditions.
  • understand the concept of a concentration cell.
  • understand equilibrium as it relates to cell potential.
  • understand the relationship between free energy and work as exemplified by an electrochemical cell.
  • understand and identify the key differences between a voltaic (galvanic) cell and an electrolytic cell.
  • use reduction and oxidation potentials to predict the products formed during electrolysis of an aqueous solution.
  • understand the idea of current and use it to solve problems involving electron flow, time, and the stoichiometry of an electrolytic reaction.

 

Stuff to Read, Watch, Think About, and Study

Before you watch the videos below, download the  Download Module 11 Slides

, and use them to take notes as you follow along.

 

read:  Galvanic Cells Links to an external site.

watch:  Voltaic Cells; due by July 27 at 23:59 MDT

 

read:  Standard Reduction Potentials Links to an external site.

watch:  Standard Reduction (and Oxidation) Potentials

do:  WebAssign HW -- Redox Reactions and Standard Cell Potential; due by July 27 at 23:59 MDT

 

read:  The Nernst Equation Links to an external site.

watch:  Cell Potential and Free Energy Change; due by July 30 at 23:59 MDT

watch:  Cell Potential under Non-Standard Conditions; due by July 30 at 23:59 MDT

 

read:  Electrolysis Links to an external site.

watch:  Electrochemical Potential and Work; due by July 30 at 23:59 MDT

watch:  Electrolysis; due by July 30 at 23:59 MDT

do:  WebAssign HW -- Non-Standard Cell Potential and Electrolysis; due by July 30 at 23:59 MDT

do:  WebAssign timed (90 min) quiz -- Electrochemistry; due by July 30 at 23:59 MDT