2. Using 3 molecules of ethyl acetate and the single molecule shown below, create a Molecular View that shows each of the three major types of intermolecular forces. Be sure to use the notation described in Lab Manual Section 7.1. You may use ChemDraw to construct this structural representation.
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- You are given an impure sample of fluorene. Your crystallization solvent choices are water, methyl alcohol and toluene. Using your understanding of polarity and solubility, predict which solvent would be the best choice for crystallization. Briefly explain your answer choice and why the other two choices were eliminated.2. Look up and draw the structure of each of the following solvents: water, acetone, ethanol, acetonitrile, hexane, dichloromethane, and ethyl acetate. Classify each as non-polar, polar protic, or polar aprotic solvents.3. Aprocedure calls for you to dissolve a com- pound in hot ethanol. Using one of the sug- gested online sources (such as the Sigma- Aldrich or Acros Organics websites), look up the boiling point and flammability of ethanol. What is the best method for heat- to S ing ethanol? t.
- Diethyl ether (CH3CH2OCH2CH3) has a dielectric constant of 4. What best describes its solvent properties: polar protic, nonpolar protic, polar aprotic, or nonpolar aprotic?A. TESTS FOR METHYL ALCOHOL1. Salicylic Acid Test. Methyl alcohol with salicylic acid and concentrated sulfuric acid willgive methyl salicylate or oil of wintergreen, a compound with an odor of peppermint.In a test tube containing 0.2 gm of salicylic acid, add 1 ml. of concentrated sulfuric acid(CAUTION!). Introduce 1 ml. of methanol into the test tube. Result:? To make the odor more pronounced, pour the contents of the tube into a smallbeaker containing 20 ml. of water. What is the reaction called? Write the equation for the reaction of methyl alcohol with salicylic acid.n-Pentanol is an aliphatic alcohol with many properties similar to ethanol. Explain why n-pentanol was not considered as a possible recrystallization solvent for fluorene during our laboratory experiment.
- 4. Imagine you performed the following extraction steps on a solution of salicylic acid and (R)-carvone in ethyl acetate. Draw the structure of salicylic acid and (R)-carvone after each step and predict the layer (organic or aqueous) it will be found in. OH OH salicylic acid (R)-carvone a. The solution of salicylic acid and (R)-carvone in ethyl acetate is washed with water. b. The organic layer from part a is washed with aqueous sodium hydroxide. c. The aqueous layer from part b is neutralized by adding sulfuric acid. Then it is extracted with ethyl acetate.10. Fractional Distillation: This lab was viewed via a video and described in detail in lab class. You are distilling apart hexane (bp = 68) and toluene (bp 110). Your boiling point for the first fraction is 48°C. Why is the boiling point so low (most likely reason)? !! azeotrope with water non-resonance of hexane O resonance of toluene student error O seriously impaired thermometerQ.9. To 4-5 drops of an unknown alcohol, 1 mL of Lucas reagent (ZnCl2 + HCl) is mixed. No cloudiness or separate layer was observed in the test tube even after 6 minutes. The unknown alcohol may be options: A) Secondary alcohol B) Primary and secondary alcohol C) Tertiary alcohol D) Primary alcohol
- Which of the following statements is not correct? Oxymercuration-demercuration for alcohol synthesis is complicated by carbocation rearrangement. Oxymercuration-demercuration for alcohol synthesis follows Markonikov's Rule. Sodium borohydride is used in the last step of oxymercuration-demercuration to oxidize the hydroxyalkyl mercury compound. All of the above. Both the 1st and the 3rd statements.C. REACTION WITH SODIUM1. Place 2 mL of each of the following alcohols in separate dry test tubes: ethylalcohol, benzyl alcohol and glycerol.2. To each test tube add a small piece of sodium metal and observe the result.3. Observe the test tube that has no reaction and warm very gently.4. Allow the reaction to proceed to completion. Record results in the table below. Alcohol Result Ethyl AlcoholBenzyl AlcoholGlycerol Equations for the reaction of each alcohol with sodium metal:a. _________________________________________________________________b. _________________________________________________________________c. _________________________________________________________________Activity 5: Check for Understanding (30 mins.) A- Each of the following alcohols is named incorrectly. Give the correct IUPC name for each alcohol. 1. 2-Ethyl-1-propanol 2. 2,4-Butanediol 3. 2-Methyl-3-butanol 4. 1.4-Cyciopentanediol 5. 3-Ethyl-2-butanɔl