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Moles are the bridge

Moles are the bridge

Stoichiometry map showing mass, solution and gas conversions into moles, then use of balanced equation coefficients to reach moles of another substance and convert out again

A balanced equation is a counting statement for particles. Its coefficients tell you the ratio in which substances react in moles, so every calculation starts by converting the given information into moles.

Balanced equations and associated calculations Lesson

  1. A Level
  2. /Chemistry
  3. /Balanced equations and associated calculations

Step-by-step lessons on AQA A Level Chemistry Balanced equations and associated calculations. Each one builds up to exam-style questions. Build confidence with atomic structure, bonding and moles calculations early on, since these underpin the more demanding organic mechanisms, equilibrium and practical-analysis topics that dominate Year 2.

Lessons