1. Starter 1)Write an equation for the reaction between methanol and butanoic acid. Name the organic product formed. 2) Name the following compounds a)CH 3 CH 2 CH 2 CHClCH 3 b)CH 3 CH 2 CHBrCHClCH

2. Halogenoalkanes L.O.:  Describe the structure, general formula and uses of halogenoalkanes.  Describe and explain the nature of the carbon– halogen bond and its susceptibility to nucleophilic attack.  Define the term nucleophile as an electron pair donor

3. In pairs: a)Explain which is the most electronegative atom. b)Explain the trend of electronegativity in group 7. c) Explain why the C-Cl bond is polar. d)Which of these bonds is more polar: C-F, C- Cl, C-Br, C-I.

4. Polarity of the carbon-halogen bond

5. Polarity of the carbon-halogen bond decreases down the group

6. Reactions of haloalkanes L.O.:  Describe the hydrolysis of halogenoalkanes as a nucleophilic substitution reaction.  Describe the mechanism of nucleophilic substitution in the hydrolysis of primary halogenoalkanes with hot aqueous alkali.  Explain the rates of primary halogenoalkane hydrolysis in terms of the relative bond enthalpies of carbon–halogen bonds.

7. In pairs 1) What is a nucleophile? 2) Examples of nucleophiles.

8. Mechanism for nucleophilic substitution

9. Curly arrows are used to represent the movement of electron pairs

10. In pairs: 1)Predict the relative rate of hydrolysis of : R-Cl, R-Br and R-I

11. BondBond enthalpy (KJ mol-1) C-F+467 C-Cl+340 C-Br+ 280 C-I+240

12. Rates of hydrolysis of halogenoalkanes In hydrolysis of halogenoalkanes, the bond enthalpy is more important that bond polarity.

13. Reactions of haloalkanes L.O.:  Describe the hydrolysis of halogenoalkanes as a nucleophilic substitution reaction.  Describe the mechanism of nucleophilic substitution in the hydrolysis of primary halogenoalkanes with hot aqueous alkali.  Explain the rates of primary halogenoalkane hydrolysis in terms of the relative bond enthalpies of carbon–halogen bonds.