# 5.5: Videos- Empirical and Molecular Formulas

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## Percentage Composition

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## Molecular and Empirical Formulas

Introduction to molecular and empirical formulas. Calculating molecular mass.

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## Formula from Mass Composition

Figuring out the empirical formula from a molecule’s mass composition

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## Molecular and Empirical Formulas from Percent Composition

Molecular and Empirical Formulas from Percent Composition.

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