Name ______________ Organic 2012 TEST meth, eth, prop,but,pent,hex,hept,oct,non,dec methyl, ethyl, propyl,butyl,pentyl,hexyl,heptyl,octyl,nonyl,decyl mono,di,tri,tetra,penta Molecular Geometry Straight Chain, Branched Chain, Cyclic, Single,Double,Triple,Cis,Trans,Mirror Image Functional Groups – ol,al,one,oxy/ether,oic acid, yl oate ester Fluro,chloro,bromo,iodio Amines -O-H, C=O,C, -O-, C – O – H, C – O – C O O O F, Cl,Br,I NH2 Intermolecular Forces of Attraction – Fritz London Dispersion, Dipole Dipole, Hydrogen Bonding Polymers – monomers, addition and condensation polymerization What are the bond angles associated with the third carbon in this compound? H O C O 1. H H C N C H H H H 4 to 1 and 0 nonbonding pairs of electrons around the carbon generate 109.5o bond angles 3 to 1 and 0 nonbonding pairs of electrons around the carbon generate 1200 bond angles 2. a) What is the name of the following compound? Longest Chain- Branches-#of Branches-Locations heptane dimethyl ethyl 5-ethyl-2,3-dimethyl-heptane b) What is the molecular formula of the compound? C?H? C11H24 CnH2n+2 3. a) What is the name of the following compound? hexyne dimethyl 2,5-dimethyl-3-hexyne b) What is the molecular formula of the compound? C?H? C8H14 CnH2n-2 4a) What is the name of the following compound? Make sure you indicate the compound’s type of geometric arrangement about the double bond. cis-4-octene b) What is the molecular formula of the compound? C?H? C8H16 CnH2n 5.What is the name of the following compound? cyclobutane dimethyl propyl 1,1-dimethyl-3-propyl-cyclobutane 6.What is the name of the following compound? pentanal 7. What is the name of the following compound? butanoic acid 8. What is the name of the following compound? ethyloxypropane or ethyl propyl ether 9. What is the name of the following compound? 4-decamine 10.What is the name of the following compound? ethyl pentanoate 11. What is the name of the following compound? 4-methyl-3-hexanol 12.What is the name of the following compound? methyl butanoate 13. What is the name of the following compound? 2-heptanone 14.What is the name of the following compound? Octane-dibromo-fluro-methyl 2,6-dibromo-4-fluoro-5-methyl-octane 15 Cl H C Cl Br Br C C H C They are mirror images of each other, they will rotate plane polarized light in different directions, they require different enzymes. 14.What force is responsible for intermolecular forces of attraction? a) magnetic force d) frictional force b) gravitational force e) normal force c) tension f) electrostatic force 15.a) What causes a Fritz London Dispersion Force? Momentary shifts (sloshing around ) in electrons that create short lived positive and negative regions within a molecule b) Which of the following will have the largest London Dispersion Forces AND why? i) CH4 ii) C2H6 iii) C2H4 iv) C2H2 There is a greater probability of momentary shifts in electrons that create London Dispersion forces as the number of atoms/electrons increase, therefore larger molecules generate larger london dispersion forces. iv) Which of the following have greater intermolecular forces of attraction and Why? H H Cl H C H H H C Cl Cl H C Cl Cl The chloromethane would have greater intermolecular forces because it contains a polar bond between the carbon and the chlorine and has an asymmetrical shape. It is a polar molecule that can attract other chloromethanes by dipole dipole intermolecular forces. The tetrachoromethane is symmetrical and therefore is a nonpolar molecule that can not attract other molecules through dipole dipole intermolecular forces v) Which of the following have greater intermolecular forces of attraction and why? H H H H H H H H H C C H H H H C H C H O H H C H C=O H–C–O–C–H H H The ethanol contains an oxygen bond to a hydrogen and therefore can develop hydrogen bonds between ethanol molecules. Hydrogen bonding are the strongest type of intermolecular forces that can develop between molecules. 17.i) Draw the product of the following three molecules? H H H C=C H H C=C H C H H H H H H H C–C-C-C-C–C - C=C H H O H H O O H C H H C H H H H H O H O H H C H HCH H H O HCH H ii) What type of reaction causes these molecules to form a larger molecule? Addition Polymerization iii) H Which of the following molecules will produce a larger molecule with the least attraction for other molecules and Why? H H C= C H H C=C H C=C H H C=C H H H O H Cl H Br Ethene can only develop london dispersion forces between ethene molecules because it does not contain polar covalent bonds and asymmetrical shapes like the remaining compounds. London Dispersion forces are weaker than Dipole Dipole or Hydrogen Bonding. 18.iName the following molecule? 3pts each octane a) C C C C C C C C ii) Draw and name two isomers of the above compound 2-methyl heptane b) C C C C C C C C C C 3-methyl-heptane c) C C C C C C 19. a) Circle the longest chain in the following molecule/Redraw the molecule illustrating the longest chain 2pts b) What is the molecular formula of the following hydrocarbon? C? H ? 2pts C20H42 C) Name the molecule twice. 6 pts d) Which of the formula would be the accepted IUPAC name and why? 2pts C C C C C C C C C C C C C C C C C C C C 4,7-diethyl-5,7,8-trimethyl-6-propyl-decane 4,7-diethyl-3,4,6-trimethyl-5-propyl-decane – lowest possible location #’s 20. Draw the structure of the following compounds containing functional groups a) 2,2,3,- trifluoro-heptane F C – C – C –C – C – C –C F F b) 2-Propanamine C–C–C N c) 3 – methyl – 2 - pentanone C – C – C –C – C O C d) diethyl ether C–C–O–C–C e) butanoic acid C–C–C–C–O-H O f) pentanal C – C – C –C – C=O g) 3 – pentanone C – C – C –C – C O h) Hexyl ethanoate C – C – C –C – C – C – O – C – C O i) methyl hexanoate C – O – C –C – C – C – C – C O 21. The following compounds will react to form an artificial “flavoring”. a)What is the name of the following molecule? 2pts b) What is the name of this molecule? Hexanoic acid ethanol H H H H H O H H Heat H C C C C C C O H + H O H H H H H (aq) c) What are the structures and names of the two products? 2pts ethyl hexanoate O C – C – C – C –C – C – O – C – C C H C H H H2SO4 water H-O H 22. Using the draw program draw the carbon atoms found in the following hydrocarbons. 3pts each a) 3,3 – diethyl – 4,5 –dimethyl – octane c) 5,5 dibutyl– decane d) 4 – methyl – 2 - hexene e) 1 – ethyl – 3 – propyl - cyclohexane f) 2,2 - dimethyl – 4- hexyne