Other Periodic Table Trends

Electronegativity, metallic nature and atomic radius.

Ionic, Covalent, and Metallic Bonds

Introduction to ionic, covalent, polar covalent and metallic bonds.

Molecular and Empirical Formulas

Introduction to molecular and empirical formulas. Calculating molecular mass.

The Mole and Avogadro's Number

Introduction to the idea of a mole as a number

Formula from Mass Composition

Figuring out the empirical formula from a molecules mass composition

Another mass composition problem

Another exercise converting a mass composition to an empirical formula.

Balancing Chemical Equations

The art of balancing equations in chemistry!

Stoichiometry

Introduction to stoichiometry

Stoichiometry: Limiting Reagent

Stoichiometry problem where we have a limiting reagent!

Ideal Gas Equation: PV=nRT

Intuition behind the ideal gas equation: PV=nRT.

Ideal Gas Equation Example 1

Figuring out the number of moles of gas we have using the ideal gas equation: PV=nRT.

Ideal Gas Equation Example 2

PV/T is a constant. Figuring out the volume of an ideal gas at standard temperature and pressure (STP).

Ideal Gas Equation Example 3

Figuring out the mass of Oxygen we have.

Ideal Gas Example 4

Figuring out the molar mass of a mystery molecule at STP.

Partial Pressure

Figuring out the partial pressures of various gases in a container.

States of Matter

Introduction to the states or phases of matter.

States of Matter Follow-Up

More on Plasma and Hydrogen bonds.

Specific Heat, Heat of Fusion and...

Specifict heat and phase changes: Calculating how much heat is needed to convert 200g of ice at -10C to 110...

Chilling Water Problem

How much ice at -10 degrees C is necessary to get 500g of water down to 0 degrees C?

Phase Diagrams

Understanding and interpreting phase diagrams

Covalent Networks, Metallic, and...

Covalent Networks, Metallic, and Ionic Crystals: Some of the strongest molecular structures.

Solubility

Solubility of salt and gas solutes in liquid solvent.

More on Oxidation States

More practice calculating oxidation states

Redox Reactions

Oxidation reduction (or redox) reactions