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In support of all the students who are displaced from school due to the Corona virus. Access to physics zone and chemistry zone lessons are now available free of charge. This will be maintained at least through August 1st 2020. Learn and be well.

Chemistry Lessons Review Links

Lessons on Stoichiometry (Reactions)

Name Description Type
Empirical Formula from Mass
Chemistry Zone Members Only		 This guides you through determining the empirical formula of a compound just based on the mass of its parts. Guide
Empirical Formula from %Comp Guide This guides you through determining the empirical formula of a compound just based on the percent composition of its parts. Guide
Molecular Formula from Empirical & Molecular Mass
Chemistry Zone Members Only 		This guides you through determining the molecular formula of a compound just based on the empirical formula and the molecular mass. Guide
Molecular Formula from %Comp & Molecular Mass
Chemistry Zone Members Only		 This guides you through determining the molecular formula of a compound just based on the percent composition and the molecular mass. Guide
Calculating Percent by Mass This guides you through determining the percent composition of an element in a substance just based on its mass. Guide
Molarity Calculations This lets you practice Molarity calculations involving moles, volume and Molarity.  Bring a calculator. Live Practice
(Javascript)
Molarity - Mass Calculations This lets you practice Molarity calculations involving mass, volume and Molarity.  Bring a calculator and a periodic table. Live Practice
(Javascript)
Balancing Chemical Reactions A clever tutorial on balancing chemical reaction equations. Tutorial
(ShockWave)
Balancing Combustion Reactions A nice tutorial with immediate feedback on balancing chemical reaction equations. Tutorial
(ShockWave)