C5.3.13 suggest reasons for low yields for C4 Chemical 69 a given procedure (separate science only) Calculations C5.3.14 describe the relationship C4 Chemical 78 between molar amounts of gases and Calculations their volumes and vice versa, and calculate the volumes of gases involved in reactions, using the molar gas volume at room temperature and pressure (assumed to be 24 dm3) (separate science only) C5.4 How are the amounts of chemicals in solution measured? C5.4.1 identify the difference between Not explicit in qualitative and quantitative analysis book (separate science only) C5.4.2 explain how the mass of a solute C4 Chemical 72 and the volume of the solution is related Calculations to the concentration of the solution and calculate concentration using the formula: concentration (g/dm3) = mass of solute (g) / volume (dm3) C5.4.3 explain how the concentration of C4 Chemical 72 a solution in mol/dm3 is related to the Calculations mass of the solute and the volume of the solution and calculate the molar concentration using the formula concentration (mol/dm3) = number of moles of solute / volume (dm3) C5.4.4 describe neutralisation as acid C5 Chemical 92 reacting with alkali to form a salt plus water Changes including the common laboratory acids hydrochloric acid, nitric acid and sulfuric acid and the common alkalis, the hydroxides of sodium, potassium and calcium C5.4.5 recall that acids form hydrogen ions C5 Chemical 99 when they dissolve in water and solutions Changes of alkalis contain hydroxide ions C5.4.6 recognise that aqueous C5 Chemical 96 neutralisation reactions can be generalised Changes to hydrogen ions reacting with hydroxide ions to form water C5.4.7 describe and explain the procedure C4 Chemical 74 for a titration to give precise, accurate, Calculations valid and repeatable results C5.4.8 Evaluate the quality of data from C4 Chemical 76 titrations Calculations
C5.3.13 suggest reasons for low yields for a given procedure (separate science only) C4 Chemical Calculations 69 C5.3.14 describe the relationship between molar amounts of gases and their volumes and vice versa, and calculate the volumes of gases involved in reactions, using the molar gas volume at room temperature and pressure (assumed to be 24 dm3) (separate science only) C4 Chemical Calculations 78 C5.4 How are the amounts of chemicals in solution measured? C5.4.1 identify the difference between qualitative and quantitative analysis (separate science only) Not explicit in book C5.4.2 explain how the mass of a solute and the volume of the solution is related to the concentration of the solution and calculate concentration using the formula: concentration (g/dm3) = mass of solute (g) / volume (dm3) C4 Chemical Calculations 72 C5.4.3 explain how the concentration of a solution in mol/dm3 is related to the mass of the solute and the volume of the solution and calculate the molar concentration using the formula concentration (mol/dm3) = number of moles of solute / volume (dm3) C4 Chemical Calculations 72 C5.4.4 describe neutralisation as acid reacting with alkali to form a salt plus water including the common laboratory acids hydrochloric acid, nitric acid and sulfuric acid and the common alkalis, the hydroxides of sodium, potassium and calcium C5 Chemical Changes 92 C5.4.5 recall that acids form hydrogen ions when they dissolve in water and solutions of alkalis contain hydroxide ions C5 Chemical Changes 99 C5.4.6 recognise that aqueous neutralisation reactions can be generalised to hydrogen ions reacting with hydroxide ions to form water C5 Chemical Changes 96 C5.4.7 describe and explain the procedure for a titration to give precise, accurate, valid and repeatable results C4 Chemical Calculations 74 C5.4.8 Evaluate the quality of data from titrations C4 Chemical Calculations 76