How can there be fractions of molecules as shown in a unity formula?

Unit 4 Topic 7
The Unity Formula

The unity formula is a theoretical concept which only describes proportional relationships between the oxides in the glaze rather than actual numbers of molecues.
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The unity formula expresses ratios between numbers of molecules.

The actual number of molecules involved in a glaze are millions of millions. These vast numbers are conveniently scaled down in the unity formula which thereby invariably includes some theoretical fractions of molecules.


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