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Essay

measuring percent oxygen in air

Essay specific features

 

Issue:

Science

 

Written by:

William C

 

Date added:

July 20, 2011

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 798

 

Was viewed:

10275 times

 

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Essay content:

The conclusion of the test suggested that the concentration of oxygen in the lab at the time of the experiment was around 20%. METHOD: The method for this experiment was to take advantage of oxygen's chemical reactivity with Iron. A piece of steel wool was placed in a test tube which was inverted in water...
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A piece of steel wool was placed in a test tube which was inverted in water. As the oxygen in the tube reacted with the steel wool the volume of air decreased in the tube until all the oxygen had reacted to form rust. The change in volume of air could then be determined to calculate the percent of O2 originally present...
displayed 300 characters

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