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Name(s)_________________________________________
Date_______________________________
The solubility
of gases in water is controlled by several principles. In this lesson
you read about the various principles and explore the principles through
computer animation. After the computer animations you investigate a
WOW lake ecosystem to further understand oxygen supersaturation.
Knowledge
Base
Complete the WOW Reading
on the chemistry of oxygen solubility. Your instructor will present
a series of computer animations related to the reading.
Experimental
Design
Hypothesize what conditions in lakes could cause supersaturation.
1. What clues in a lake that might indicate that 02 supersaturation
is occurring?
Data
Collection
Examine the Ice Lake oxygen and temperature profiles in the corresponding
Excel file for January
2, 1999 and July
2, 1999.
2. What are your observations for each date?
Data
Management and Analysis
Construct a graph of the oxygen and temperature profiles. Overlay a
profile for 100% 02 saturation using the table
provided from Wetzel, 1983.
3. Return to the oxygen data for Lake Independence. Do you note any
patterns in the time of day and depths at which oxygen supersaturation
occurs?
Interpretation
of Results
4. At what time of year would you expect 02 supersaturation to occur?
Why?
5. Would
you expect supersaturation to occur in lakes of all types? Why or why
not?
|
Chemistry
of Oxygen Solubility Reading
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