6. a. Draw and label a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, and a tert-butyl group. Do not draw an entire molecule, use a vertical squiggle to represent where the rest of the chain would be. Draw your answer using line-angle structure. b. Some of the names listed in part a are common names for these substituents. What are the IUPAC names for each of these structural arrangements? Use your IUPAC skills - do not look it up.

2.a What is the molar mass of acetylsalicylic acid (aspirin)? b. Name the functional groups on the hydrocarbon ring present in acetylsalicylic acid. Circle them below. H H H H OH H -C-C-H OH

Match the compound name with its correct molecular formula (based on the general formula): - propane - propene - butene - butyne A. C4H8 B. C4H6 C. C3H8 D. C3H6 Sent by you: Match the compound name with its correct molecular formula (based on the general formula): - propane - propene - butene - butyne A. C4H8 B. C4H6 C. C3H8 D. C3H6

a. Draw the structural formula 2,3,3,4-tetramethylheptane.   b. Draw the structural formula of 4,5-diisopropylnonane.   c.Draw the structural formula of cis-1,3-dimethylcyclohexane.

4. MAINIDEA Compare and contrast alkyl halides and aryl halides. 5. Draw structures for the following molecules. a. 2-chlorobutane c. 1,1,1-trichloroethane b. 1,3-difluorohexane d. 1-bromo-4-chlorobenzene 6. Define functional group and name the group present in each of the following structures. Name the type of organic compound each substance represents. a. CH3CH,CH2OH b. CH;CH,F c. CH;CH,NH2 7. Evaluate How would you expect the boiling points of propane and 1-chloropropane to compare? Explain your answer. d. CH3C- OH 8. Interpret Scientific Illustrations Examine the pair of substituted hydrocarbons illustrated at right, and decide whether it represents a pair of optical isomers. Explain your answer.

2. Circle and Label all functional groups in each structure. Do not make a list. a. b. НО. d. OH c. ignore the H3C H CH3 CH3 * on the structure ZI OH Fr CH3 OH

3. Draw a structure (your preferred type) for each of the following unsaturated hydrocarbons. a. 2,5,6-trimethyl-3-heptyne b. p-difluorobenzene 4. Draw a structure (your preferred type) for each of the following: a. m-lodobenzoic acid b. Ethyl propyl ether c. 5-ethyloctanal d. 4-isopropyl-3-hexanone

3. When working with organic compounds, Markovnikov's rule is used to predict ? A) the location of alkali ion that is being added B) where a hydrogen atom goes when added to a double bond C) when a reaction is a result of the oxidation or reduction process D) where changes in ketones or aldehydes will take place E) the position of extra methyl groups in the major or minor products 4. Methane burns in air to form carbon dioxide and water according to the following equation: CH + 20 + CO , + 2H,O Which of the following statements about this reaction is FALSE? ΔΗ = -882 kJ/mol A) The reaction is exothermic. B) The temperature of the surroundings must increase. C) The change in enthalpy could be expressed just as accurately by showing heat as one of the products of the reaction. D) The enthalpy of the products is greater than that of the reactants. E) Chemical bonds are both broken and formed in this reaction.

What is the IUPAC name for CH 3 -CH 2 - CH 2-I   a. diiodopropane. b. propane diiodide. c. 1-iodopropane. d. 3-iodopentane. e. 3-iodopropane.

2. The structure of caffeine is shown here. With the help of your textbook or the functional group table on the back cover of your laboratory manual, complete the following: A Place a circle around each of the methyl CH3 groups. B. Place a box around the alkene functional CH3 group. (There is only one.) C. Place a triangle around one of the carbonyl groups. D. Draw a single arrow pointing toward a nitrogen that is involved in functional N. an amine N. group. E. Draw a double arrow pointing toward a nitrogen that is involved in functional CH3 an amide Caffeine group.