Chemistry A Level OCR/B/Salters New Specification
Length of course: 5 full-day sessions
Boards: OCR/B H433 Salters only
This course is board-specific for the NEW OCR/B/Salters specification (H433).
This course is for A level students only.
This course is not suitable for AS level students studying Chemistry AS OCR/B/Salters New
This course is not suitable for students re-sitting units from the outgoing (legacy) Chemistry A2
OCR/A (H435) specification.
The following topics (storylines) will be covered:
- Elements of life - atomic structure, atomic spectra and electron configurations; fusion reactions; mass spectrometry and isotopes; the periodic table and Group 2 chemistry; bonding and the shapes of molecules; chemical equations and amount of substance (moles); ions: formulae, charge density, tests; titrations and titration calculations.
- Developing fuels - the chemical ideas in this module are: thermochemistry; organic chemistry: names and combustion of alkanes, alkenes, alcohols; heterogeneous catalysis; reactions of alkenes; addition polymers; electrophilic addition; gas volume calculations; shapes of organic molecules, σ- and π-bonds; structural and E/Z isomers; dealing with polluting gases.
- Elements from the sea - halogen chemistry; redox chemistry and electrolysis; equilibrium; atom economy.
- The ozone story - composition by volume of gases; the electromagnetic spectrum and the interaction of radiation with matter; rates of reaction; radical reactions; intermolecular bonding; haloalkanes; nucleophilic substitution reactions; the sustainability of the ozone layer.
- What’s in a medicine? - the chemistry of the –OH group, phenols and alcohols; carboxylic acids and esters; mass spectrometry and IR spectroscopy; organic synthesis, preparative techniques and thin layer chromatography; green chemistry.
- The chemical industry – kinetics, using experimental data, calculations involving order of reaction, rate equations, rate constant and Arrhenius equation; equilibrium and equilibrium constant calculations; effects of factors on the rate and equilibrium yields of reactions; aspects of nitrogen chemistry; Sustainability - industrial processes, analysis of costs, benefits and risks of industrial processes
- Polymers and life – amino acid chemistry, structure of proteins, the structure and function of DNA and RNA; Kinetics – enzyme chemistry; chemistry of carboxylic acids; homologous series and amides; hydrolysis of esters, amides; condensation polymerisation; isomerism; mass spectra, proton and carbon-13 spectra and combined techniques.
- Oceans – enthalpy calculations of lattice enthalpy, hydration energy and solution, entropy calculations; acids and bases including calculations of pH and buffers; ‘greenhouse effect’
- Developing metals – redox titrations; cells and electrode potentials; d-block chemistry; colorimetry
- Colour by design – some chemistry of dyes; fats and oils, aromatic compounds; reactions of aromatic and carbonyl compounds; nucleophilic addition; the chemical origins of colour in organic compounds; gas–liquid chromatography
Where appropriate, help will also be provided for practical skills assessed in a written examination.