Finding the Empirical Formula of Magnesium Oxide

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IGCSE Practical Assessment-Finding the Empirical Formula of Magnesium Oxide

Appearance of Magnesium before experiment:

The magnesium was silvery and curly in a solid form before heated.

Appearance of Magnesium during experiment:

There was fizzing white smoke (Magnesium Oxide) coming out from the crucible when we lifted the lid to let oxygen in, it has no smell.

Appearance of Magnesium after experiment:

The magnesium turned in a white power form after heated. It contained no smell.

Results

Mass of crucible + lid                                         =30.44g

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Mass of crucible + lid + magnesium before heating                  =30.69g

Mass of crucible + lid + magnesium oxide after heating              =30.81g

The Mass of Each element in the compound

Magnesium

Mass of crucible + lid + magnesium oxide after heating                =30.81g

Mass of crucible + lid                                           =30.41g

Therefore, the mass of magnesium           ...

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