Chemistry IB _ Grade 11 and 12 Topic 7 : Equilibrium

Chemistry IB _ Grade 11 and 12 Topic 8 : Acids and bases

Chemistry IB _ Grade 11 and 12 Topic 9 : Redox processes

Chemistry IB _ Grade 11 and 12 Topic 10 : Organic chemistry

Chemistry IB _ Grade 11 and 12 Topic 11 : Measurement and data processing

5 - usings moles 5.1 The mole 5.2 Calculations from equations 5.3 Reactions involving gases 5.4 The concentration of a solution 5.5 Finding the empirical formula 5.6 From empirical to final formula 5.7 Finding % yield and % purity

Reactivity 1.2 - Energy cycles in reactions Reactivity 1.2.1 - Bond-breaking absorbs and bond-forming releases energy. Reactivity 1.2.2 - Hess’s law states that the enthalpy change for a reaction is independent of the pathway between the initial and final states. Reactivity 1.2.3 - Standard enthalpy changes of combustion, ΔHc ⦵, and formation, ΔHf ⦵, data are used in thermodynamic calculations. Reactivity 1.2.4 - An application of Hess’s law uses enthalpy of formation data or enthalpy of combustion data to calculate the enthalpy change of a reaction. Reactivity 1.2.5—A Born–Haber cycle is an application of Hess’s law, used to show energy changes in the formation of an ionic compound.