Edexcel A-Level Chemistry Paper 1, June 2017
Every question from Edexcel A-Level Chemistry Paper 1, June 2017 (9CH0): 10 questions, 90 marks, each with its mark scheme and topic.
- Question 1 6 marks
Determine the sub-atomic particles in a phosphide ion, explain the shape and bond angle of phosphorus(III) chloride, identify its bond and molecular polarity, and determine the formulae and mass/charge ratios for its molecular ion peaks.
Physical Chemistry · Organic Chemistry · Topic 1: Atomic Structure and the Periodic Table · Topic 2: Bonding and Structure · Topic 7: Modern Analytical Techniques I
- Question 2 6 marks
Explain why the thermal decomposition of magnesium nitrate is a redox reaction in terms of oxidation numbers, and explain the difference in thermal stability between magnesium and calcium nitrates in terms of cation charge and size.
Physical Chemistry · Inorganic Chemistry · Topic 3: Redox I · Topic 4: Inorganic Chemistry and the Periodic Table
- Question 3 9 marks
Explain trends in boiling temperatures of halogens, identify the strongest reducing agent among halides using oxidation numbers, and calculate cell potentials and ionic equations from standard electrode potentials.
Physical Chemistry · Inorganic Chemistry · Topic 2: Bonding and Structure · Topic 3: Redox I · Topic 14: Redox II · Topic 4: Inorganic Chemistry and the Periodic Table
- Question 4 9 marks
Answer questions on the properties and reactions of iron and zinc transition metal complexes, including electronic configuration, colour, complex structures, entropy changes and catalysis.
Physical Chemistry · Inorganic Chemistry · Topic 13: Energetics II · Topic 15: Transition Metals
- Question 5 9 marks
Calculate enthalpy changes using mean bond enthalpies, determine entropy changes of systems, and calculate free energy changes and reaction feasibility.
Physical Chemistry · Topic 8: Energetics I · Topic 13: Energetics II
- Question 6 11 marks
Draw a dot-and-cross diagram for magnesium bromide, complete a Born-Haber cycle to calculate the first electron affinity of bromine, explain the difference in first ionisation energy between magnesium and sodium, and write an equation for the third ionisation energy of magnesium.
Physical Chemistry · Topic 1: Atomic Structure and the Periodic Table · Topic 2: Bonding and Structure · Topic 13: Energetics II
- Question 7 9 marks
Calculate the temperature change when hydrochloric acid reacts with aqueous ammonia, and comment on the relative enthalpy changes of neutralisation for various acids.
Physical Chemistry · Topic 8: Energetics I · Topic 12: Acid-base Equilibria
- Question 8 12 marks
Calculate the concentration, determine pH changes, interpret titration curves, and explain acid strength of glycolic acid (2-hydroxyethanoic acid).
Physical Chemistry · Organic Chemistry · Topic 12: Acid-base Equilibria · Topic 6: Organic Chemistry I
- Question 9 7 marks
Write ionic equations for buffer action involving phosphate ions and calculate the pH of a buffer solution formed by mixing sodium hydroxide and ethanoic acid.
Physical Chemistry · Topic 12: Acid-base Equilibria
- Question 10 12 marks
Analyze equilibrium properties including Kp expression, Le Chatelier's principle, Kp calculation, and reaction quotient for reversible gas-phase reactions involving hydrogen production and carbon monoxide.
Physical Chemistry · Topic 10: Equilibrium I · Topic 11: Equilibrium II