Q1 a) What do you understand by each of the following?
(i) Intramolecular forces [1 mark]
(ii) chiral centre [1 mark]
b) In a laboratory experiment to prepare N-ethylethanamide (CH3CH2NH2COCH3), 10 g of ethanamine (CH3CH2NH2) were refluxed with 14 g of ethanoic anhydride (CH3COOCOCH3).
(i) Write a balanced equation for the reaction [1 mark]
(ii) Find the limiting reagent (show your calculation) [4 marks]
(iii) Calculate the theoretical yield of methanol [2 marks]
Q2 a) For the compound 2,3-dibromobutane [CH3CH(Br)CH(Br)CH3], draw the Fischer projection formula for all the stereoisomers, with enantiomers opposite each other. Label each chiral centre with the correct absolute configuration (R or S) and indicate the meso compound if any. [8 marks]
b) Write the IUPAC name for each of the following compounds. Include the stereochemistry in the name if shown.
[9 marks]
Q3 a) Write the name of the functional group in each of the following compounds and indicate the laboratory reagent/s you would use to identify the group. Indicate the expected observation in each case.
[6 marks]
b) Write the reaction mechanism using curly arrows to show movement of electrons for the following reaction
[8 marks]
For a custom-written paper on the above topic, place your order now!
What We Offer
• On-time delivery guarantee
• PhD-level professionals
• Automatic plagiarism check
• 100% money-back guarantee
• 100% Privacy and Confidentiality
• High Quality custom-written papers
