Topic 3: Quantitative chemistry – GCSE AQA Higher Combined Science Chemistry revision notes

What this topic covers

Topic 3: Quantitative chemistry has 5 subtopics:

• Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations
• Use of amount of substance in relation to masses of pure substances
• Yield and atom economy of chemical reactions (chemistry only)
• Using concentrations of solutions in mol/dm 3 (chemistry only) (HT only)
• Use of amount of substance in relation to volumes of gases (chemistry only) (HT only)

Topic 3: Quantitative chemistry lessons by subtopic

14 lessons, grouped by subtopic.

Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations

• Calculating Relative Formula Mass
• Percentage by Mass in Compounds
• Explaining Mass Changes in Open Systems
• The Law of Conservation of Mass
• Balancing Chemical Equations
• Understanding Uncertainty in Chemical Measurements

Use of amount of substance in relation to masses of pure substances

• Converting Masses to Moles for Equation Balancing
• Balancing Equations from Mass Data
• Understanding Solution Concentration
• Calculating Mass of Solute in Solutions
• Understanding Limiting Reactants
• Understanding Chemical Equations in Terms of Moles
• Calculating Masses from Balanced Chemical Equations
• Introduction to Moles and Avogadro's Constant

More in this course

Go back to the full GCSE AQA Higher Combined Science Chemistry topic list, or practise this topic with past-paper questions.