AS Level Chemistry -2.4 Reacting masses and volumes (of solutions and gases)

This powerpoint fully covers the following criteria –

2.4 Reacting masses and volumes (of solutions and gases)

Learning outcomes
Candidates should be able to:

1. perform calculations including use of the mole concept, involving:
   (a) reacting masses (from formulas and equations) including percentage yield calculations
   (b) volumes of gases (e.g. in the burning of hydrocarbons)
   © volumes and concentrations of solutions
   (d) limiting reagent and excess reagent
   (When performing calculations, candidates’ answers should reflect the number of significant figures
   given or asked for in the question. When rounding up or down, candidates should ensure that significant figures are neither lost unnecessarily nor used beyond what is justified (see also Mathematical requirements section).)
   (e) deduce stoichiometric relationships from calculations such as those in
   2.4.1(a)–(d)

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