Questions: Quantitative chemistry and the mole
Pick a question type. Each time you get new numbers. Free ones are marked free.
Conservation of mass and relative formula mass
- Relative formula mass, brackets includedCalculate, 2 marks, free
- Mr of a hydrated saltCalculate, 3 marks, free
- Finding an unknown Ar from an MrCalculate, 3 marks, free
- What Mr meansChoose, 1 mark, free
- Mass lost when a gas escapesExplain, 3 marks, free
- Mass gained when a metal reacts with oxygenCalculate, 3 marks, free
- Total Mr on each side of an equationComplete, 4 marks, free
Percentage by mass and concentration in g/dm³
- Percentage by mass of an elementCalculate, 3 marks, free
- Percentage of water in a hydrateCalculate, 3 marks, free
- Mass of an element in a mass of compoundCalculate, 3 marks, free
- Concentration in g/dm³Calculate, 3 marks, free
- Mass of solute from a concentration in g/dm³Calculate, 2 marks, free
- Volume of solution from a mass and a concentrationCalculate, 3 marks, free
Moles, the Avogadro constant and reacting masses
- Moles from massCalculate, 3 marks, Plus, Higher tier
- Mass from molesCalculate, 3 marks, Plus, Higher tier
- Mr from mass and moles, then identify the gasCalculate, 3 marks, Plus, Higher tier
- Moles from the ratio in an equationCalculate, 2 marks, Plus, Higher tier
- Number of particles with the Avogadro constantCalculate, 3 marks, Plus, Higher tier
- Counting atoms inside moleculesCalculate, 3 marks, Plus, Higher tier
- The mass of one atom or moleculeCalculate, 2 marks, Plus, Higher tier
- Reacting masses from a balanced equationCalculate, 4 marks, Plus, Higher tier
- Reacting masses step by stepCalculate, 5 marks, Plus, Higher tier
- The limiting reactant and the mass of productDetermine, 5 marks, Plus, Higher tier
- Limiting reactants and excessChoose, 1 mark, Plus, Higher tier
Balancing equations and empirical formulae from masses
- Balancing an equation from reacting massesDetermine, 3 marks, Plus, Higher tier
- Choosing the equation that fits the massesChoose, 2 marks, Plus, Higher tier
- Empirical formula from massesDetermine, 4 marks, Plus, Higher tier
- Empirical formula from percentagesDetermine, 3 marks, Plus, Higher tier
- Formula of an oxide from a crucible experimentDetermine, 5 marks, Plus, Higher tier
- Molecular formula from the empirical formulaDetermine, 3 marks, Plus, Higher tier
Percentage yield and atom economy
- Percentage yieldCalculate, 2 marks, Plus, Chemistry only
- Theoretical mass, then percentage yieldCalculate, 5 marks, Plus, Chemistry only, Higher tier
- Using a percentage yieldCalculate, 2 marks, Plus, Chemistry only
- Why yields are below 100 percentChoose, 2 marks, Plus, Chemistry only
- Atom economyCalculate, 3 marks, Plus, Chemistry only
- Comparing the atom economy of two routesCompare, 5 marks, Plus, Chemistry only
- Reactions with 100 percent atom economyChoose, 1 mark, Plus, Chemistry only
- Choosing a route: atom economy and yield (6 marks)Evaluate, 6 marks, Plus, Chemistry only
Concentration in mol/dm³, titrations and gas volumes
- Concentration in mol/dm³Calculate, 3 marks, Plus, Chemistry only, Higher tier
- Moles in a volume of solutionCalculate, 2 marks, Plus, Chemistry only, Higher tier
- Mass of solute to make a solutionCalculate, 3 marks, Plus, Chemistry only, Higher tier
- Converting between mol/dm³ and g/dm³Calculate, 3 marks, Plus, Chemistry only, Higher tier
- Which solution is most concentrated?Compare, 4 marks, Plus, Chemistry only, Higher tier
- Concordant titres and the meanDetermine, 4 marks, Plus, Chemistry only
- Concentration of an acid from a titrationCalculate, 5 marks, Plus, Chemistry only, Higher tier
- Titration with sulfuric acid (1 : 2 ratio)Calculate, 7 marks, Plus, Chemistry only, Higher tier
- Titration techniqueChoose, 1 mark, Plus, Chemistry only
- Volume of a gas from moles or massCalculate, 3 marks, Plus, Chemistry only, Higher tier
- Moles and mass from a gas volumeCalculate, 4 marks, Plus, Chemistry only, Higher tier
- Volume of gas made in a reactionCalculate, 4 marks, Plus, Chemistry only, Higher tier
- Reacting volumes of gasesCalculate, 2 marks, Plus, Chemistry only, Higher tier
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