High school4/4 lessons
Amount of substance and solutions
The mole, molar mass, molar concentration, dilutions. Stoichiometry — what makes chemistry quantitative.
- 01
Mole and molar mass
Avogadro's constant, defining the mole, computing molar masses. The n = m/M relation.
10 min - 02
Molar concentration
C = n/V. Preparing a solution of given concentration from a solid or by dilution.
9 min - 03
Dilutions and dilution factor
C₁V₁ = C₂V₂. Dilution factor, serial dilutions, experimental verification.
8 min - 04
Stoichiometry
Reaction progress table, limiting reactant, yield. Mass and volume calculations from a balanced equation.
12 min