View six galvanic cells built from six different combinations of half-cells of copper, zinc, iron and silver. Observe how the voltmeter needle moves when the circuit is complete, and deduce the direction of electron flow in the external circuit and the polarity of the electrodes. Deduce and record which of the two metals in each cell is the stronger reductant. From the recorded observations, deduce the order of the half-equations in the electrochemical series for the four metals tested. This learning object is one in a series of three learning objects.
Objective
1. Students identify the direction of electron flow and the polarity of the electrodes in sample galvanic cells.
2. Students deduce which of the two metals used in a galvanic cell is the stronger reductant.
3. Students interpret test results from sample galvanic cells and place the half-equations for the metals tested into their correct order in the electrochemical series.
Curriculum Information
Education Type
K to 12
Grade Level
Grade 8, Grade 9, Grade 10
Learning Area
Science
Content/Topic
Matter
Living Things and Their Environment
Intended Users
Learners, Students
Competencies
Copyright Information
Copyright
Yes
Copyright Owner
Education Services Australia
Conditions of Use
Use, Copy
Technical Information
File Size
0 bytes
File Type
application/x-rar
Software/Plug-in Requirements
Adobe Flash Player - http://get.adobe.com/flashplayer/
