The role of CFCs in in the atmosphere from Students find out about the role of depletion and the compounds such as CFCs. chemists in the introduction of June 2009 search for alternatives. legislation to ban the use of CFCs Unit 2 Q11 Understand the mechanism and in finding replacements. for the depletion of ozone by chlorine free-radicals. Evaluate the role of chemists in the introduction of legislation to ban the use of CFCs and to find replacements. 0.4 Explain the meaning of the Practical demonstrations: January 2005 Ethanol as a fuel: 3.3.5.1 Alcohol production. weeks term biofuel and discuss Fermentation of glucose followed Unit 3 Q5a, 5b and the environmental issues of by fractional distillation. 5c Hydration of alkenes to biofuel usage. make alcohols. Whoosh bottle. January 2002 Write equations for ethanol Unit 3 Q7 Compare hydration of produced by fermentation. Students write balanced equations ethene with and mechanism steps for the January 2012 fermentation of glucose Outline the mechanism for dehydration of a variety of alcohols. Unit 2 Q9 in the production of the formation of ethanol by ethanol. the reaction of ethene with Students compare hydration and steam in the presence of an fermentation processes. acid catalyst. Students research the pros and cons of the use of biofuels. 3.3.5.2 0.8 equations for these Practical activities: January 2013 Giant silver mirror: Oxidation of alcohols. weeks oxidation reactions. Test-tube reactions to illustrate Unit 2 Q5
The role of CFCs in depletion and the search for alternatives. in the atmosphere from compounds such as CFCs. Understand the mechanism for the depletion of ozone by chlorine free-radicals. Evaluate the role of chemists in the introduction of legislation to ban the use of CFCs and to find replacements. Students find out about the role of chemists in the introduction of legislation to ban the use of CFCs and in finding replacements. June 2009 Unit 2 Q11 3.3.5.1 Alcohol production. Hydration of alkenes to make alcohols. Compare hydration of ethene with fermentation of glucose in the production of ethanol. 0.4 weeks Explain the meaning of the term biofuel and discuss the environmental issues of biofuel usage. Write equations for ethanol produced by fermentation. Outline the mechanism for the formation of ethanol by the reaction of ethene with steam in the presence of an acid catalyst. Practical demonstrations: Fermentation of glucose followed by fractional distillation. Whoosh bottle. Students write balanced equations and mechanism steps for the dehydration of a variety of alcohols. Students compare hydration and fermentation processes. Students research the pros and cons of the use of biofuels. January 2005 Unit 3 Q5a, 5b and 5c January 2002 Unit 3 Q7 January 2012 Unit 2 Q9 Ethanol as a fuel: 3.3.5.2 Oxidation of alcohols. 0.8 weeks equations for these oxidation reactions. Practical activities: Test-tube reactions to illustrate January 2013 Unit 2 Q5 Giant silver mirror:
AQA-7404-B-SOW.DOCX