Empirical Formula & Molecular Formula Determination From Percent Composition

This chemistry video tutorial explains how to find the empirical formula given the mass in grams or from the percent composition of each element in a compound. If you're given the mass percent, you can simply treat it as if you were given the mass in grams. This video explains how to find the molecular formula given the molar mass of the compound. You can do this once you have the empirical formula. This video explains all of it. It has plenty of practice problems and examples for you to master this lesson.

Stoichiometry - Free Formula Sheet:
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Introduction to Moles:
   • Introduction to Moles  

How To Calculate The Molar Mass:
   • How To Calculate The Molar Mass of a ...  

How To Convert Grams to Moles:
   • How To Convert Grams To Moles - VERY ...  

How To Convert Moles to Grams:
   • How To Convert Moles to Grams  

Moles to Atoms Conversion:
   • Moles To Atoms Conversion - Chemistry  

Grams to Molecules Conversion:
   • Grams to Molecules and Molecules to G...  

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Grams to Atoms:
   • How To Convert Grams to Atoms - THE E...  

Moles, Atoms, & Grams Conversions:
   • How To Convert Between Moles, Atoms, ...  

How To Balance Chemical Equations:
   • How To Balance Chemical Equations  

Stoichiometry - Basic Introduction:
   • Stoichiometry Basic Introduction, Mol...  

Avogadro's Number:
   • Avogadro's Number, The Mole, Grams, A...  

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Limiting Reactant Problems:
   • Limiting Reactant Practice Problems  

Excess Reactant Problems:
   • How To Find The Amount of Excess Reac...  

Theoretical & Percent Yield:
   • How To Calculate Theoretical Yield an...  

Percent Yield - More Examples:
   • How To Calculate The Percent Yield an...  

Percent Error:
   • Percent Error Made Easy!  

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Percent Composition By Mass:
   • Percent Composition By Mass  

Empirical Formula Problems:
   • Empirical Formula & Molecular Formula...  

Empirical Formula - Hydrated Compounds:
   • How To Find The Empirical Formula of ...  

Combustion Analysis:
   • Introduction to Combustion Analysis, ...  

Stoichiometry Practice Test:
   • How To Solve Stoichiometry Problems  

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