CHEM 219 Module 2 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning.

CHEM 219 Module 2 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning. Score for this quiz: 10 out of 10 Submitted Jul 31 at 5:44pm This attempt took 110 minutes. Question 1 Not yet graded / 0 pts Your Answer: Define hydrocarbon. A hydrocarbon is a fully saturated chain of carbons and hydrogens Answer: Molecules composed only of the elements carbon and hydrogen. Question 2 Not yet graded / 0 pts Your Answer: What are the two major classes of hydrocarbon compounds? 12/14/23, 8:43 PM 2/16 Alkanes and Cycloalkanes Answer: Aliphatic Hydrocarbons (alkanes, alkenes, alkynes) and Aromatic Hydrocarbons (benzene) Question 3 Not yet graded / 0 pts Your Answer: Describe the fundamental structural differences between alkanes, alkenes, and alkynes. Alkanes have a c-c bond Alkenes have a minimum of one C=C bond Alkynes have a minimum of one Answer: AlkANES have only C-C single bonds (saturated). AlkENES have at least one C=C. AlkYNES have at least one C≡C. Question 4 Not yet graded / 0 pts Name the following alkanes using IUPAC systematic nomenclature methodology: 12/14/23, 8:43 PM 3/16 Your Answer: A. 4-Ethyl-2,2-dimethylhexane B. 1,1,3-TRIMETHYLCYCLOHEXANE C. 1,3,3-Trichlorobutane D. 3-Methylhexane Answer: A. 4-ethyl-2,2-dimethylhexane B. 1,1,3-trimethylcyclohexane C. 1,3,3-trichlorobutane D. 3-methylhexane Question 5 Not yet graded / 0 pts Two different Newman projections of a linear alkane molecule are shown below. Answer the questions which follow. 12/14/23, 8:43 PM 4/16 Your Answer: i) What is the IUPAC name of the molecule shown? ii) Label each projection as staggered or eclipsed. iii) What term describes the relationship between these two conformations? iv) Which of the two conformations would be more stable? Explain. 1. butane 2. staggered 3. eclipsed 4. These two conformations are bonded 5. a) is more stable Answer i) Butane ii) A = staggered, B = eclipsed iii) Rotamers iv) A would be more stable, as a staggered conformation removes some repulsion that occurs when the electrons in the bonding orbitals are aligned directly on top of one another (eclipsed).