A-level Chemistry/OCR (Salters)/The Oceans

The Oceans is the twelfth unit in the Salters Advanced Chemistry course.

Chemical Storylines sections

 * O1: The edge of the land
 * O2: Wider still and deeper
 * O3: Oceans of energy
 * O4: A safe place to grow
 * O5: Summary

Chemical Ideas sections

 * 5.1 Ions in solids and solutions (revision)
 * 3.2 The size of ions
 * 4.5 Energy changes in solution
 * 4.6 Born-Haber cycles
 * 4.4 Energy, entropy and equilibrium
 * 5.4 Forces between molecules: hydrogen bonding (revision)
 * 7.1 Chemical equilibrium (revision)
 * 7.2 Equilibria and concentrations (revision)
 * 8.1 Acid-base reactions (revision)
 * 7.7 Solubility equilibria
 * 11.2 The s block: Groups 1 and 2 (revision)
 * 8.2 Weak acids and pH
 * 8.3 Buffer solutions

Activities

 * O1.1 What is the relationship between a solvent and the substances that dissolve in it?
 * O1.2 What changes occur when an ionic solid dissolves?
 * O1.3 What factors affect the enthalpy change of formation of an ionic compound?
 * O3.1 The enthalpy change of vaporisation of water
 * O3.2 What crystals form when a solution is cooled?
 * O4.1 Finding out more about weak acids
 * O4.2 Investigating some buffer solutions
 * O5 Check your notes on The Oceans