The mole concept, stoichiometry, concentration, and quantitative analysis.
Avogadro's number and counting particles
Calculating the mass of one mole of a substance
Determining chemical formulas from composition data
Molar volume of gases at STP and non-standard conditions
Review and exam-style practice across the mole concept
Test your knowledge of Lessons 1–5
Calculating and interpreting solution concentration
Preparing solutions and calculating dilutions
Real-world applications of concentration calculations
Determining composition by mass measurement
Acid-base titrations and calculating unknown concentrations
Test your knowledge of Lessons 6–10
Using balanced equations to find mole relationships
Calculating masses of reactants and products
Identifying the limiting reagent and calculating yields
Theoretical vs actual yield and purity calculations
Applying stoichiometry to reactions involving gases
Test your knowledge of Lessons 11–15
Combining concentration and stoichiometry calculations
Working backwards from products to find reactant quantities
Experimental design, error analysis, and data interpretation
Multi-step problems combining all quantitative chemistry skills
Full summary and consolidation of Module 2
Full module assessment covering all 20 lessons