This subtopic builds upon concepts introduced in Stage 1 subtopics 1.3, 2.3, and 4.3.

Concentrations can be described by using a number of standard conventions.

• Calculate concentration and interconvert units, including: mol L^-1, g L^-1, %w/v, ppm, and ppb.
• Apply SI prefix conventions to quantities.

Tool: Molar mass calculator

Calculate concentration: Practice (choose Mass-mole or Mass and solution)

Unit conversion: Notes | Animated Notes (use Microsoft Edge) | Video | Practice

Knowledge of the mole ratios of reactants can be used in quantitative calculations.

• Perform stoichiometric calculations when given the reaction equation and the necessary data.

Animated Notes (use Microsoft Edge)

Stoichiometry algorithms

Practice program

A titration can be used to determine the concentration of a solution of a reactant in a chemical reaction.

• Describe and explain the procedure involved in carrying out a titration, particularly rinsing glassware and determining the end-point.
• Determine the concentration of a solution of a reactant in a chemical reaction by using the results of a titration.

Animated Notes (use Microsoft Edge): Volumetric flask | Titration skills

Titration Practice: Questions | Solutions