This pack contains a three lesson PowerPoint focusing on calculations involving masses including:
1. Conservation of Mass
2. Relative Formula Mass
3. Empirical Formula
4. Maximum Masses / Theoretical Yield
5. Moles, Masses, Particles and Avogadro's Number
6. Limiting Reactants
7. Stoichiometry

There are GCSE exam questions, with model answers/mark schemes, embedded into the PowerPoint as well as links to revision videos that can be set as homework or viewed in class.

There is also a workbook that can be printed and used as a resource in the classroom which includes revision notes, practice questions and mark schemes.


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  • Key-Concepts-in-Chemistry---Calculations-involving-Masses-Markscheme.pdf
  • Key-Concepts-in-Chemistry---Calculations-involving-Masses-Workbook.pdf
  • Key-Concepts-in-Chemistry---Calculations-Involving-Masses-PowerPoint.pptx

About this resource


Created: May 23, 2017

Updated: Feb 22, 2018


pdf, 837 KB



pdf, 2 MB


Unit of work

pptx, 23 MB


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