ap chemistry - empirical & molecular formulas

timestamps

• 0:00

  Introduction and Overview

• 0:32

  Ionic and Covalent Compounds

• 1:03

  Ionic Compounds Explained

• 1:33

  Sodium Chloride Example

• 2:05

  Covalent Compounds Defined

• 2:37

  Covalent Compound Examples

• 3:08

  Ionic vs Covalent Differences

• 3:38

  Empirical and Molecular Formulas

• 4:08

  Formula Examples

• 4:40

  Law of Definite Proportions

• 5:11

  Percent Composition Calculation

• 5:42

  Water Percent Composition

• 6:45

  Iron III Oxide Example

• 7:48

  Empirical from Percent Composition

• 8:49

  Molecular Formula Example

• 9:51

  Finding Empirical Ratio

• 10:23

  Empirical to Molecular Ratio

• 10:57

  Combustion Analysis Introduction

• 11:29

  Hydrocarbon Combustion Products

• 12:33

  Combustion Example Setup

• 13:36

  Carbon from CO2 Calculation

• 14:08

  Hydrogen from H2O Calculation

• 15:10

  Oxygen by Subtraction

• 15:43

  Convert Grams to Moles

• 16:16

  Empirical Formula Derivation

• 16:46

  Molecular Formula Calculation

• 17:19

  Empirical for Covalent Only

• 17:55

  Percent Composition Recap

• 18:27

  Water Percentage Example

• 18:57

  Closing Remarks