concentration of Calculate the concentration of household bleach. chlorine data from the investigation One hour lessons Learning Outcomes Specification Content Skills Covered Student Required Book Section Practicals CHAPTER 13 Halogenoalkanes (7 hours) – 1 Describing 3.3.3.1 13.1 Nucleophilic substitution write chemical, structural and halogenoalkanes and Halogenoalkanes contain polar bonds. displayed formulae for their reactions halogenoalkanes Halogenoalkanes undergo substitution Recap the structure and explain why halogenoalkanes are reactions with the nucleophiles OH-, naming of polar and the impact of this on CN- and NH3. halogenoalkanes. reaction mechanisms Students should be able to: outline the Identify polarity in the use curly arrows to describe reaction C-X bond and recap nucleophilic substitution mechanisms mechanisms ideas about the use of of these reactions; explain why the curly arrows in reaction carbon–halogen bond enthalpy mechanisms. influences the rate of reaction. 2 Nucleophilic 13.1 substitution reactions explain the term nucleophile 13.2 of halogenoalkanes explain why nucleophiles attack the C-X bond Introduce the term outline the nucleophilic substitution nucleophile with mechanism of halogenoalkanes with examples. Explain the the nucleophiles OH−, NH3 and CN- reaction mechanism for nucleophilic substitution for a range of common nucleophiles, using curly arrow.
concentration of household bleach. Calculate the concentration of chlorine data from the investigation One hour lessons Learning Outcomes Specification Content Skills Covered Student Book Section Required Practicals CHAPTER 13 – Halogenoalkanes (7 hours) 1 Describing halogenoalkanes and their reactions Recap the structure and naming of halogenoalkanes. Identify polarity in the C-X bond and recap ideas about the use of curly arrows in reaction mechanisms. write chemical, structural and displayed formulae for halogenoalkanes explain why halogenoalkanes are polar and the impact of this on reaction mechanisms use curly arrows to describe reaction mechanisms 3.3.3.1 Nucleophilic substitution Halogenoalkanes contain polar bonds. Halogenoalkanes undergo substitution reactions with the nucleophiles OH-, CN- and NH3. Students should be able to: outline the nucleophilic substitution mechanisms of these reactions; explain why the carbon–halogen bond enthalpy influences the rate of reaction. 13.1 2 Nucleophilic substitution reactions of halogenoalkanes Introduce the term nucleophile with examples. Explain the reaction mechanism for nucleophilic substitution for a range of common nucleophiles, using curly arrow. explain the term nucleophile explain why nucleophiles attack the C-X bond outline the nucleophilic substitution mechanism of halogenoalkanes with the nucleophiles OH−, NH3 and CN- 13.1 13.2