← Back to Chemistry
Chemistry · Triple Science

Quantitative Chemistry

Spec 4.3 Paper 1 📗 Foundation
Subtopics
Conservation of Mass and Balanced EquationsSpec 5.3.1.1Explain the law of conservation of mass and balance symbol equations. + Relative Formula MassSpec 5.3.1.2Calculate relative formula mass (Mr) from relative atomic masses and use it in calculations. + Mass Changes in ReactionsSpec 5.3.1.3Explain why the measured mass sometimes appears to change in a reaction and predict mass changes. + Chemical MeasurementsSpec 5.3.1.4Describe the importance of precise measurements in chemistry and sources of uncertainty. + Percentage YieldSpec 4.3.3.1Calculate percentage yield and explain why the actual yield is often less than the theoretical yield. + Atom EconomySpec 4.3.3.2Calculate atom economy and explain its importance for sustainable and efficient chemistry. + Concentration of SolutionsSpec 5.3.2.5Define concentration and calculate it from mass and volume. +

💡 Click a subtopic or the + to open the full notes, quiz and examples.

Key Equations
mol = mass ÷ Mr
mol = c × V
mol = V ÷ 24
% yield = actual ÷ theoretical × 100
Atom economy = Mr useful ÷ Mr all × 100
Ask Mr Badmus AI

Got a question about Quantitative Chemistry?

I'll use FIFA for calculations and flag Higher and Triple content clearly.

📋 All Chemistry Topics

Mr. Badmus AI

GCSE Science Tutor

preview