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Unformatted text preview: CHEMISTRY 1AA3 January 2010 TUTORIAL PROBLEM SET 1 QUESTIONS ______________________________________________________________________________ Page 1 of 2 Chem 1AA3 Tutorial 1 1. Which of the following formulas could represent an alkyne? an alkene? a cycloalkene? (i) C 10 H 20 (ii) C 6 H 12 (iii) C 4 H 6 (iv) C 8 H 18 2. Draw line structures for all of the structural isomers that satisfy the molecular formula C 6 H 14 . Name each structural isomer using the IUPAC rules. 3. For each of the given structural formulas, draw the Lewis structure. Remember that carbon is always tetravalent (has four bonds), and it can form double and triple bonds to many different atoms (e.g. O, N). Use these ideas to determine each Lewis structure, drawing multiple bonds where necessary to satisfy the valency at each atom. (i) HCO 2 H (ii) CH 3 NHOH (iii) CH 3 CHO (iv) CH 3 CHCl 2 (v) CH 2 NCH 3 4. Using both sawhorse (dashes and wedges) representations and Newman projections , draw both the energetically...
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