Pre-lab Questions to Consider (you do not need to answer these questions for credit but answering the questions beforehand may help you efficiently and successfully complete the experiment with a more thorough understanding of the material): 1. What is the structure of 1-hexene? 3,3-dimethyl-1-butene? 2. What do you expect the major and minor organic products to be for the HBr addition to 1-hexene? 3,3-dimethyl-1-butene? 3. What is Markovnikov's rule? Explain it in terms of carbocation stability (this is not in the te lab manual, use your textbook and/or the internet). When is Markovnikov's rule used in organic chemistry? 4. What is the HBr dissolved in? What do you have to do to use this solution safely? 5. How much of the HBr solution are you using in the reaction? How much of the alkene? 6. What is the state of HBr at room temperature? What would happen if you heated the solution? 7. How will GC be used in this experiment? What is the expected order of elution for the 1- hexene reaction? The 3,3-dimethyl-1-butene reaction? 8. The ratio of products from this reaction may differ from what is presented in an organic textbook. The reactions in the textbook consider HBr in a gas phase reaction. Why might the products differ when the reaction is carried out in acetic acid?