Chemistry (AS Level)·Atoms, molecules & stoichiometry · NSSCAS 1.1.5
Reacting masses, gas volumes & solutions
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The mole becomes a working tool. Learn to build balanced equations with state symbols and use the mole ratio to calculate reacting masses, gas volumes at r.t.p. and s.t.p., and the volumes and concentrations of solutions — the calculations at the heart of every chemistry paper.
What you'll learn in this lesson
By the end you should be able to (NSSCAS Chemistry (AS Level) 1.1.5):
- Write and construct balanced equations, including state symbols
- Perform mole calculations involving reacting masses (from formulae and equations)
- Perform calculations involving volumes of gases at r.t.p. and s.t.p.
- Perform calculations involving volumes and concentrations of solutions
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Miss Rachel and Mike talk through the whole topic — with the figure and working drawn live.