Analysis of 2011 Chemistry 9647 Papers
Hi all, You are doing well. Keep up the good fight! JC2 is an intense year and you need good time management, focus and motivation to keep yourself going. Cambridge seems to like alcohol reacting with HBr (conc sulfuric acid involved too). So pay attention to halogenoalkanes and alcohols chapter, and Grp 17 chemistry of how HBr is generated. You may want to read about stalactites and stalagmites. The formation is a little similar to 2010 Paper 3 Question 3. http://science.howstuffworks.com/environmental/earth/geology/stalactite-stalagmite1.htm You may also wish to read up on the effect of ligand strength on the colours and energy gap of transition metal complexes. Also, you may like to prepare for tetrahedral complexes eg. [CuCl4]2- on how the d-orbitals are split and the energy gap. (my uni year 2 topic, taught by a grandpa prof) You may like to clarify what are ppm (parts per million) units. You may like to practise deductive inorganic mole concept ca...