Edexcel A-Level Chemistry AS Paper 2, June 2023
Every question from Edexcel A-Level Chemistry AS Paper 2, June 2023 (8CH0): 8 questions, 80 marks, each with its mark scheme and topic.
- Question 1 2 marks
Add another line on the Maxwell-Boltzmann distribution graph to represent the same reaction with the same number of particles at a higher temperature.
Physical Chemistry · Topic 9: Kinetics I
- Question 2 14 marks
Calculate reaction quantities involving alkane combustion and free-radical substitution of methane, and apply the ideal gas equation.
Physical Chemistry · Organic Chemistry · Topic 5: Formulae, Equations and Amounts of Substance · Topic 6: Organic Chemistry I
- Question 3 18 marks
Answer questions about alkenes, including their general formula, bonding, reactions such as hydration and oxidation, polymerisation, mechanism of electrophilic addition, and polymer disposal.
Organic Chemistry · Core Practicals · Physical Chemistry · Topic 6: Organic Chemistry I · Topic 2: Bonding and Structure
- Question 4 16 marks
Examine halogenoalkane reactions including hydrolysis rates, nucleophilic substitution mechanisms with ammonia, infrared spectroscopy, and synthetic routes to increase chain length or form alkenes.
Organic Chemistry · Core Practicals · Topic 6: Organic Chemistry I · Topic 7: Modern Analytical Techniques I · Topic 18: Organic Chemistry III
- Question 5 9 marks
Calculate the enthalpy change of combustion per gram of alcohol Q using calorimetry data, explain the effect of incomplete combustion, evaluate limitations of the procedure, and identify specific mass spectrometry fragmentation peaks to distinguish between alcohol isomers.
Physical Chemistry · Organic Chemistry · Core Practicals · Topic 8: Energetics I · Topic 6: Organic Chemistry I · Topic 7: Modern Analytical Techniques I · Core Practical 8: Determine the enthalpy change of a reaction using Hess’s law
- Question 6 1 mark
Identify the correct expression for the equilibrium constant Kc for the thermal decomposition of solid ammonium carbamate into ammonia and carbon dioxide gases.
Physical Chemistry · Topic 11: Equilibrium II
- Question 7 13 marks
Assess the properties, reactions, oxidation, and preparation of the primary alcohol butan-1-ol including intermolecular forces, enthalpy level diagram, functional group tests, and synthesis techniques.
Physical Chemistry · Organic Chemistry · Core Practicals · Topic 2: Bonding and Structure · Topic 8: Energetics I · Topic 6: Organic Chemistry I · Core Practical 5: Investigate the oxidation of ethanol · Core Practical 7: Identify unknown organic liquids and inorganic solids · Topic 18: Organic Chemistry III
- Question 8 7 marks
State standard conditions, draw a Hess's law cycle, and calculate the enthalpy change of formation of gaseous water using provided thermochemical data.
Physical Chemistry · Topic 8: Energetics I