Here are some key terms for this topic: Key Terms C4
IGCSE Chemistry: Topic 4 Stoichiometry, a series of 9 lessons from Sal Sciab.
IGCSE Chemistry: Basic Calculations, a 15m lesson from ChemistryKlipz (some of which we don’t need for the exam).
2 videos on Stoichiometry which probably go into too much detail but are very good – Hank Green from Crash Course Chemistry talks very fast & Salman Khan does not.
A good powerpoint that covers most of what you need but misses out calculations for gases and solutions:
Stoichiometry & The Mole from Stephen Taylor
IGCSE Chemistry: Calculations involving Moles, a 16m lesson from ChemistryKlipz.
What is a mole? – The Virtual School (3m 49s):
Molar Volumes of Gases – The Virtual School (3m 23s):
Practice here – some mole calculation worksheets and Stoichiometry from Mister Guch and some chemical calculations from Doc Brown.
Quantitative chemistry from GCSE Bitesize – just revise the bits you need though (use the syllabus statements to decide). A Quantitative Chemistry quiz – for teams or individuals.
A Mole Music Video by Peter Weatherall (1m 48s).
‘Calculations involving the use of limiting reactants may be set’:
What would happen if you had a mole of moles? . The fantastic What if? site answers this question. The answer is rather unpleasant.
Infographic from Compound Interest: