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Monitoring and controlling chemical reactions
Revision and exam practice for Monitoring and controlling chemical reactions.
23
Objectives
10
Flashcards
10
Questions
90 min
Study time
OcrGcseChemistry A GatewayMonitoring and controlling chemical reactions
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23 objective pages available
Understanding Solution Concentration (Higher Tier)1 objectives
- Account for the way the concentration of a 3 solution in mol/dm is related to the mass of the solute and the volume of the solution.
Understanding Titration as a Quantitative Analytical Technique1 objectives
- Communicate the key features of the technique of titration.
Understanding Reacting Volumes and Concentrations (Higher)1 objectives
- Account for the relationship between the volume of a solution of known concentration of a substance and the volume or concentration of another substance that react completely together.
Molar Volume of Gases (Higher)1 objectives
- Communicate the key features of the relationship between molar amounts of gases and their volumes and vice versa.
Calculating Gas Volumes in Chemical Reactions (Higher)1 objectives
- Work out the volumes of gases involved in reactions using the molar gas volume at room temperature and 3 pressure (assumed to be 24 dm ).
Understanding Concentration: Mass of Solute and Volume of Solution1 objectives
- Account for the way the mass of a solute and the volume of the solution is related to the concentration of the solution.
Calculating Theoretical Mass of Product1 objectives
- Work out the theoretical mass of a product from a given mass of reactant.
Understanding Percentage Yield1 objectives
- Work out the percentage yield of a reaction product from the actual yield of a reaction.
Understanding Atom Economy in Chemical Reactions1 objectives
- Develop knowledge and skill in the atom economy of a reaction.
Understanding Atom Economy in Chemical Reactions1 objectives
- Work out the atom economy of a reaction to form a desired product from the balanced equation.
Choosing Reaction Pathways (Higher)1 objectives
- Account for why a particular reaction pathway is chosen to produce a specified product given appropriate data.
Determining Reaction Rates1 objectives
- Apply biological knowledge to suggest practical methods for determining the rate of a given reaction.
Interpreting Rate of Reaction Graphs1 objectives
- Draw supported meaning from rate of reaction graphs.
Factors Affecting Reaction Rate1 objectives
- Communicate the key features of the effect of changes in temperature, concentration, pressure, and surface area on rate of reaction.
Rates of Reaction: Temperature, Concentration, and Pressure1 objectives
- Account for the effects on rates of reaction of changes in temperature, concentration and pressure in terms of frequency and energy of collision between particles.
Effect of Surface Area on Reaction Rates1 objectives
- Account for the effects on rates of reaction of changes in the size of the pieces of a reacting solid in terms of surface area to volume ratio.
Catalysts and Reaction Rates1 objectives
- Communicate the key features of the characteristics of catalysts and their effect on rates of reaction.
Understanding Catalysts in Chemical Reactions1 objectives
- Recognise catalysts in reactions.
Catalytic Action and Activation Energy1 objectives
- Account for catalytic action in terms of activation energy.
Enzymes as Biological Catalysts1 objectives
- Retrieve and apply knowledge of enzymes act as catalysts in biological systems.
Reversible Reactions and Reaction Conditions1 objectives
- Retrieve and apply knowledge of some reactions may be reversed by altering the reaction conditions.
Dynamic Equilibrium in Chemical Reactions1 objectives
- Retrieve and apply knowledge of dynamic equilibrium occurs in a closed system when the rates of forward and reverse reactions are equal.
Predicting Equilibrium Shifts with Le Chatelier's Principle (Higher)1 objectives
- Use evidence to predict the effect of changing reaction conditions on equilibrium position and suggest appropriate conditions to produce as much of a particular product as possible.
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Practice preview
- Higher: If 0.10 moles of a solute are dissolved in 200 cm³ of solution, what is its concentration in mol/dm³?
- Why should you perform multiple titrations and aim for concordant results?
- Higher: A student dissolves 20.0 g of sodium hydroxide (NaOH) in water to make 500 cm³ of solution. The Mr of NaOH is 40.0 g/mol. What is the concentration of the solution in mol/dm³?
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