Having spent many years looking for calculation questions for my students and coming up blank I thought I would just create them myself. The sheet contains an overview of the three equations needed for quantitative chemistry calculations (concentration, gas volumes and reacting masses) as well as a worked example. There are then 6 questions on reacting masses and limiting reactants and then 4 questions on concentration and titration. The final extension question is designed to test the most able students as it requires them to construct and balance the equation in order to complete the calculation.