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Determining the Empirical Formula of an Oxide
4 March 2008
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The purpose of this experiment is to perform an experimental technique in
order to find the empirical formula for magnesium oxide.
In order to determine the empirical formula of magnesium oxide,
magnesium will be burnt in the air.
Doing this will cause a reaction of the magnesium
and the oxygen in the air, as shows the following reaction;
Before this reaction simply consists of magnesium oxide, magnesium nitride is also
formed while the magnesium strip is burning in the air.
In order to get simply the oxide,
the magnesium nitride must be heated again with water, replacing the nitrogen in the
compound with oxygen, and creating ammonia.
Through several masses taken several
times, the number of moles of each element in the compound can be determined.
this, the empirical formula can be found.
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This note was uploaded on 03/23/2008 for the course CHEM 111 taught by Professor Keiser,josephthoheckman,kimberlyproia,michaelantsanders,rebeccalo'neill,ryanshaw during the Spring '07 term at Pennsylvania State University, University Park.