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  • IGCSE Chemistry
    • Topic 1 The particulate nature of matter >
      • Interactive lesson on diffusion and evaporation
      • TOPIC C1 THE PARTICULATE NATURE OF MATTER
    • Topic 2 Experimental techniques
    • Topic 3 Atoms elements and compounds >
      • Topic 3 Tasks
    • Topic 4 Stoichiometry
    • Topic 5 Electricity and chemistry
    • Topic 6 Chemical energetics
    • Topic 7 Chemical reactions
    • Topic 8 Acids, bases and salts >
      • Making salts
    • Topic 9 The periodic table
    • Topic 10 Metals
    • Topic 11 Air and water
    • Topic 12 Sulfur
    • Topic 13 Carbonates
    • Topic 14 Organic chemistry
  • Practical Work

Assessment Statements

Resources

                      1.1 The mole concept and quantitative chemistry 
          
            1.1.1 Apply the mole concept to substances. 
            1.1.2 Determine the number of particles and the amount of substance (in moles). 

            1.2 Formulas 
            1.2.1 Define the terms relative atomic mass and relative molecular mass. 
            1.2.2 Calculate the mass of one mole of a species from its formula. 
            1.2.3 Solve problems involving the relationship between the amount of a substance in moles, mass, and molar mass. 
            1.2.4 Distinguish between the terms empirical formula and molecular formula. 
            1.2.5 Determine the empirical formula from the percentage composition or from 
            other experimental data. 
            1.2.6 Determine the molecular formula when given both the empirical formula 
            and experimental data. 

                       1.3 Chemical equations 
            1.3.1 Deduce chemical equations when all reactants and products are given. 
            1.3.2  Identify the mole ratio of any two species in a chemical equation. 
            1.3.3 Apply the state symbols (s), (l), (g), and (aq). 

            1.4 Mass and gaseous volume relationships in chemical reactions 
            1.4.1 Calculate theoretical yields from chemical equations. 
            1.4.2 Determine the limiting reactant and the reactant in excess when quantitie of 
            reacting substances are given. 
            1.4.3 Solve problems involving theoretical, experimental, and percentage yield. 
            1.4.4 Apply Avagadro’s law to calculate reacting volumes of gases. 
            1.4.5 Apply the concept of molar volume at standard temperature and pressure in calculations. 
            1.4.6 Solve problems involving the relationship between temperature, pressure 
             and volume for a fixed mass of an ideal gas. 
            1.4.7 Solve problems using the ideal gas equation PV=nRT. 
            1.4.8 Analyze graphs relating to the ideal gas equation. 

            1.5 Solutions 
            1.5.1 Distinguish between the terms solute, solvent, solution and concentration (g dm-3, mol dm-3) 
            1.5.2  Solve problems involving concentration, amount of solute and volume of solution. 

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