Stoichiometry and the Mole (Singapore N(A)-Level Science Chemistry 5107): writing formulae and balancing equations, the mole and relative masses, and using mole ratios to work out reacting masses

A Singapore N(A)-Level Science Chemistry (SEAB 5107) overview of Stoichiometry and the Mole. Writing formulae from ion charges and balancing symbol equations, the meaning of the mole and relative masses, and using the mole ratio from a balanced equation to calculate reacting masses, concentration and percentage yield, with links to every dot point.