Free reference guide · QCE
Worked examples: QCE Chemistry Formula and Data Book
Open the QCAA Chemistry formula and data book and practise using gas and concentration relationships.
Board sources checked
Official PDFs
Download the worked examples (PDF) →
Selected worked examples
Solutions · amount of solute
Formula or reference: n = cV
Units and conditions: Use c in mol/L and solution volume V in litres.
Worked example: A 35.0 mL aliquot of 0.240 mol/L solution contains 0.00840 mol.
Gases · ideal gas equation
Formula or reference: pV = nRT
Units and conditions: Use kelvin and matching pressure and volume units for the chosen R.
Worked example: At 100 kPa and 310 K, 0.300 mol of ideal gas occupies about 7.73 L using R = 8.314 kPa L/(mol K).
What to work out beyond the sheet
Use the balanced chemical equation to connect the amount you calculated to the amount of another reactant or product.
Subject resources · Official past papers · ATAR calculator guide