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 External links O unit map O Check Your Notes