Name: Empirical and Molecular Formulas
Uploaded: 2019-09-05T23:00:00.000Z
Description: This video explains the relationship between Empirical and Molecular Formulas, It covers the Law of Definite Proportions, Percent Composition, describes how to find Empirical formula given percentage data and experimental data.

AP Chemistry

Unit 1 – Atomic Structure and Properties

Unit 1 Overview: Atomic Structure and Properties

Unit 2 – Molecular and Ionic Bonding

2.3 Structure of Ionic Solids

Unit 3 – Intermolecular Forces and Properties

3.2 Properties of Solids

Unit 4 – Chemical Reactions

4.7 Types of Chemical Reactions

Unit 5 – Kinetics

5.8 Reaction Mechanism and Rate Law

Unit 6 – Thermochemistry

6.1 Endothermic and Exothermic Processes

Unit 7 – Equilibrium

7.10 Reaction Quotient and Le Châtelier’s Principle

Unit 8 – Acids and Bases

8.5 Acid-Base Titrations

Unit 9 – Applications of Thermodynamics

9.5 Free Energy and Equilibrium

Frequently Asked Questions

Study Guides for Every AP Chemistry Unit

Exam Skills

AP Chemistry Multiple Choice Questions (MCQs)

Subject Guides

Introduction to AP Chemistry

AP Cram Sessions 2021

🌶️ AP Chem Cram Review: Unit 1: Atomic Structure and Properties

Previous Exam Prep

Ask Me Anything (AMA) Session 2

AP Cram Sessions 2020

Unit 7 - Equilibrium - Stream Slides

Study Tools

Download AP Chemistry Cheat Sheet PDF Cram Chart

This video explains the relationship between Empirical and Molecular Formulas, It covers the Law of Definite Proportions, Percent Composition, describes how to find Empirical formula given percentage data and experimental data. 


AP Chemistry Unit 1: Atomic Structure and Properties 

Introduction to Chemistry ⚗️

AP Chemistry Unit 1 Key Vocabulary

The Atom

What is a mole?

Molar Mass of a Substance

Avogadro's Number 

Dimensional Analysis with Moles and Molar Mass

Moles and Molar Mass

The Average Atomic Mass of an Element

Mass Spectroscopy 📊

Putting Isotopes and Mass Spectrums Together

Sample AP Question - 2007 Exam

Mass Spectroscopy as a Laboratory Procedure

Mass Spectroscopy of Elements

Three States of Matter

Pure Substances

Law of Definite Proportions 

Empirical Formula 

Elemental Composition of Pure Substances

What are Mixtures?

Separating Mixtures

AP Practice Question - 2018 #2

AP Practice Question - 2017 #4

Composition of Mixtures

John Dalton and the Atomic Theory

Coulomb's Law

The Atom: Electrons

The Electron Configuration of an Atom

Writing the Electron Configuration of Element 26 (Fe)

Understanding Core and Valence Electrons

Atomic Structure and Electron Configuration

The Quantum-Mechanical Model

The Properties of Light 🌈

Photoelectron Spectroscopy (PES)

Practice MCQs

AP Practice Question - 2019 #5

Photoelectron Spectroscopy

Foundational Concepts for Periodic Trends

5 Periodic Trends to Know for AP Chemistry

Overview Image of Periodic Trends

Periodic Trends

Foundational Knowledge of Bonding

Types of Bonds

Charges and Partial Charges

Check your Understanding

Valence Electrons and Ionic Compounds

Unit 1 – Atomic Structure & Properties

AP Chemistry Unit 2: Molecular & Ionic Compounds

Unit Two's Big Picture

AP Chemistry Unit 2 Key Vocabulary

Unit 2 Overview: Molecular and Ionic Compound Structure and Properties

Principles of Bonding

Ionic Bonding

Covalent Bonding

Which Chemical Bond will Form?

Types of Chemical Bonds

Potential Energy and Bonding

Potential Energy and Covalent Bonds

Forces Within Ionic Bonds

Intramolecular Force and Potential Energy 

Structure of Ionic Solids 

Lattice Energy

Structure of Ionic Solids

Metallic Bonding

Comparing Solids

Alloys

Structure of Metals and Alloys

What are Lewis Diagrams?

Drawing Lewis Dot Structures (LDS)

Examples of Lewis Structures

Answers to Practice Questions 

Lewis Diagrams

Resonance

Formal Charge

AP FRQ Practice Questions

Resonance and Formal Charge

Valence Shell Electron Pair Repulsion (VSEPR)

Bonding

AP Free-Response Questions

AP FRQ Scoring Guidelines

VSEPR and Bond Hybridization

Unit 2 – Molecular & Ionic Bonding

From the College Board

AP Chemistry Unit 3: Intermolecular Forces & Properties

📝Unit 3 Key Vocabulary

Unit 3 Overview: Intermolecular Forces and Properties

London Dispersion Forces 

Dipole-Dipole Interactions 

Hydrogen Bonding

Ion-Dipole Forces

Summary of IMFs

Intermolecular Forces

What is Solubility?

Saturation of Solutions

Factors Affecting Solubility 

Solubility

What Is Light?

Properties of Light

The Electromagnetic Spectrum🌈

Spectroscopy and the Electromagnetic Spectrum

Quantum Mechanics: Where is the Electron?

Max Planck and the Ultraviolet Catastrophe

The Photoelectric Effect

Speed of Light

Photoelectric Effect

A Dive Into Spectrophotometry 🌈

The Beer-Lambert Law

Practice AP Question for this Unit 🤓

Beer-Lambert Law 

Amorphous Solids

Crystalline Solids

Properties of Solids

🧊Solids

💧Liquids 

♨️Gases

Density

Overview

Solids, Liquids, and Gases

Pressure and Temperature

Gas Laws & Relationships

Ideal Gas Law

Dalton's Law of Partial Pressure

AP Chemistry Reference Table

The Kinetic Molecular Theory (KMT)

Maxwell-Boltzmann Distributions

AP Free-Response: 2019 #4

Kinetic Molecular Theory

When do gases deviate from the Ideal Gas Law?

Practice Question

Diffusion and Effusion

Deviation from Ideal Gas Law

Review of Mixtures

What are Solutions?

Representing Solution Composition

Forming a Solution

Diluting Solutions

Solutions and Mixtures

Types of Solutions

Visualizing Solutions 

Colligative Properties

Representations of Solutions

Separating Solutions into Solute and Solvent

Separation of Solutions and Mixtures Chromatography

Unit 3 – Intermolecular Forces & Properties

AP Chemistry Unit 4: Chemical Reactions

📝Unit 4 Key Vocabulary

Unit 4 Overview: Chemical Reactions

What is a chemical reaction?

Practice Questions

Introduction for Reactions

Reactions in Aqueous Solution

Writing Net Ionic Equations

Net Ionic Equations

Why Do We Balance Reactions?

Steps to Balancing Equations

Review Activity

Representations of Reactions

Review of Chemical Equations

Chemical Changes

Physical Changes

Physical and Chemical Changes

What Is Stoichiometry Useful For?

Practice Stoichiometry Problems

General Steps

Try on your Own!

Stoichiometry

Empirical and Molecular Formulas

Empirical and Molecular Formulas

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