Edexcel A-Level Chemistry AS Paper 1, June 2016
Every question from Edexcel A-Level Chemistry AS Paper 1, June 2016 (8CH0): 8 questions, 80 marks, each with its mark scheme and topic.
- Question 1 9 marks
Assess halogen physical states, chlorine reactions with sodium hydroxide, hydrogen bromide and ammonia observations, electronegativity and bond polarity, and calculate the number of ions in a given mass of magnesium chloride.
Physical Chemistry · Inorganic Chemistry · Organic Chemistry · Topic 4: Inorganic Chemistry and the Periodic Table · Topic 2: Bonding and Structure · Topic 5: Formulae, Equations and Amounts of Substance
- Question 2 10 marks
Identify errors in an old chemistry excerpt, determine the structure of a carbon-13 ion, define relative atomic mass, calculate relative atomic mass from isotopic sample data, and explain a peak in a bromine mass spectrum.
Physical Chemistry · Topic 1: Atomic Structure and the Periodic Table
- Question 3 13 marks
Calculate the moles of magnesium and hydrogen gas, use the ideal gas equation to find the expected volume of hydrogen, explain why the experiment was repeated, and identify experimental errors with improvements.
Physical Chemistry · Core Practicals · Topic 5: Formulae, Equations and Amounts of Substance · Core Practical 1: Measuring the molar volume of a gas
- Question 4 7 marks
Identify four colourless solutions (hydrochloric acid, magnesium sulfate, potassium chloride, sodium carbonate) using various chemical and physical tests including flame tests, barium chloride, silver nitrate, and carbonate reactions.
Inorganic Chemistry · Core Practicals · Topic 4: Inorganic Chemistry and the Periodic Table · Core Practical 7: Identify unknown organic liquids and inorganic solids
- Question 5 10 marks
Calculate the concentration of undiluted nitric acid from titration data, determine dot-and-cross bonding, and calculate atom economy for its formation.
Physical Chemistry · Organic Chemistry · Topic 5: Formulae, Equations and Amounts of Substance · Topic 2: Bonding and Structure
- Question 6 5 marks
Explain the differences in bond angles between ammonia and water, and compare the O-H and S-H bond lengths.
Physical Chemistry · Topic 2: Bonding and Structure
- Question 7 15 marks
Discuss the suggestion that the difference in the rates of reaction of strontium and barium with water is due to the difference in the sum of their first and second ionisation energies, and answer questions on ionisation energy equations, thermal decomposition of nitrates and carbonates.
Physical Chemistry · Inorganic Chemistry · Topic 1: Atomic Structure and the Periodic Table · Topic 4: Inorganic Chemistry and the Periodic Table
- Question 8 11 marks
Identify the structure and bonding of magnesium oxide, calculate the empirical formula of a sulfur-fluorine compound, balance a redox equation, determine oxidation numbers, and predict physical properties of a metal based on bonding.
Physical Chemistry · Inorganic Chemistry · Topic 2: Bonding and Structure · Topic 3: Redox I · Topic 5: Formulae, Equations and Amounts of Substance