Written Paper Section II Question 32 from the 2010 HSC Examination
Summary: (a) Identification of one type of cell used in the extraction of sodium hydroxide. (b) Comparison of the electrolysis of molten sodium chloride and aqueous sodium chloride. (c) Graphical analysis of a system approaching equilibrium. (d) Process of saponification and specific safety precautions in a school laboratory. (e) Importance and environmental impacts of using limestone in the Solvay Process.