Due at the beginning of the lab period Reading Assignment form Zubrick, 9^th ed.
ID: 529414 • Letter: D
Question
Due at the beginning of the lab period Reading Assignment form Zubrick, 9^th ed.: Safety First, Last, and Always pp. 2-8; Reactions of Alcohols Experiment, GSU Laboratory Manual 1. Disposing of waste properly is very important in the organic Chemistry Laboratory. How would you classify the waste that is produced from the reaction with the Jones' reagent with 1-butanol? If there are multiple types of waste, include them all. Classify the reactant(s), reagent(s) and product(s) of the reaction according to their waste category. 2. You will work in groups of two for most or all of the experiments you complete this semester. Why is it important to work with a partner in the lab? 3. What should you do if your lab partner spills a small amount of Lucas reagent on his or her hand? 4. How much Lucas reagent will you need to perform the laboratory exercise, assuming you perform the test with each known and your unknown only once?Explanation / Answer
1. In the reaction of jones oxidation, the product formed is Cr(III)hydroxide. The waste is non-toxic in nature. However any remaining reagent Cr(V) or Cr(VI) are toxic and must be neutralized to Cr(III) state by i-propanol.
2. Team work is most important when working in organizations and working with a partner helps learn this. Also a partner may help you when you do a mistake.
3. If lucas reagent is spilled, wash with lots of water and apply burn cream. If the condition is not stable consult with the physician.
4. Lucase reagent is an Sn1 reaction of alcohols with HCl in ZnCl2 catayst. The tertiary alcohols reacta fastest whereas, the primary alcohol does not react by this mechanism. Mix alcohol with ZnCl2 and pass HCl through it. Appearence of turbidity confirms formation of alkyl chloride.
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