Explain why the 1-bromobutane must be dried with anhydrous calicum chloride before purifying it by fractional...

Explain why the 1-bromobutane must be dried with anhydrous calicum chloride before purifying it by fractional distillation.Explain why wood applicator sticks should not be used to promote even boiling during reactions, even through they can be used for this purpose when removing solvent to concentrate a solution during recrystallization.

Chapter 16 describes three methods for converting alcohol to alky halides. (a) 47% HBr (2). Aqueous solution of NaBr and excess H2So4 (3). So2 bubbled into bromine suspended in water

For each of the following, choose the most appropriate synthesis method and explain why it it is the choice. (a) 1-bromobutane (2) . 2-bromo-2-methylpropane (c). 1-bromobutane

Write a reactions mechanis showing the formation of 1-butene as a byproduct in this experiment. Write each step on a separate line. Show all reactant and products for each stepInclude all mechanism arrows. Identify the rate determing (slow) step.

Write a reaction mechanism for the formation of di-n-butyl ether as a byproduct in this experiment. Write each step on a separate line. Show all reactants and product for each step. Include all mechanism arrows. Identify the rate determining (slow) step.

Explain how adding cocentrated sulfuric acid to the original distillate removes each of the three expected organic impurities from the 1-bromobutane. Draw the structure and equations to support your explanations. (1). (2). (3).

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queen_honey_blossom answered 2 years ago

explain why all glassware must be dry and the solvent anhydrous during formation and reaction of...

explain why all glassware must be dry and the solvent anhydrous during formation and reaction of a grignard reaction. Further, explain whether acetone would be a viable solvnt for a generation of a grignard reagent. include one or more balanced chemical equations in your answer.

Why is sodium chloride not generally used for the fractional precipitation of proteins?

Describe the appearance of: Silver nitrate test Commercial 1- bromobutane: unheated? and heated? Commercial t-butly chloride:...

Describe the appearance of: Silver nitrate test Commercial 1- bromobutane: unheated? and heated? Commercial t-butly chloride: unheated? and heated? Sodium iodide test Commercial 1- bromobutane: unheated? and heated? Commercial t-butly chloride: unheated? and heated?

1. Why must wine samples be stored in the refrigerator before analysis?

Lab 9: Iodometric Determination of Ethanol1. Why must wine samples be stored in the refrigerator before analysis?2. Other procedures suggest leaving the wine sample in the flask, in a warm place, overnight before titrating the unreacted dichromate solution. Why would this procedure have the flask incubating in the over at 70 degrees for 2.5 hours instead?3. How would the change in procedure affect results?

1. Why is the EDTA salt dried only at 80o C (i.e., why not 100o C)?...

1. Why is the EDTA salt dried only at 80o C (i.e., why not 100o C)? 2. Suppose you did not heed our warnings and stored your EDTA solution in a conventional glass bottle (instead of a plastic bottle) -- how would this affect your final results (i.e., would they be high, low, or unchanged)? Explain. 3. Why is it not necessary that the plastic storage bottles be dry before transferring the EDTA for storage ? 4. Would the titration...

based on a fractional and dstillation lab answer the following: 1. why is it important that...

based on a fractional and dstillation lab answer the following: 1. why is it important that the coolong water in a distillation apparatus enter the condenser jacket at the lower end and exit at the upper? 2. what effect would a reduction in atmosphericpressure have on the boiling point of ethyl acetate? explain 3. what is themperature gradient in the Vigreux column; is it low near the bootm and high near the top or vice versa?

Explain why sodium chloride in water conducts an electric current while solid sodium chloride does not....

Explain why sodium chloride in water conducts an electric current while solid sodium chloride does not. Name the conjugate base of the following acids:a. NH4^+b. HCO3^-1c. HNO3d. H2S

Please explain why the fractional distillation of two components is easily accomplished if the components have...

Please explain why the fractional distillation of two components is easily accomplished if the components have boiling points that differ 20Celsus or more . Please also draw a phase diagram.

List and explain two reasons why the fractional reserve system makes it difficult for the Federal...

List and explain two reasons why the fractional reserve system makes it difficult for the Federal Reserve Bank to control the exact size of the money supply. What, if anything, can the Fed do to keep these problems in check?

1. Why is it impossible for greater than 96% pure ethanol to be obtained from fractional...

1. Why is it impossible for greater than 96% pure ethanol to be obtained from fractional distillation of the fermentation mixture? 2. In terms of the velocity of light, what is refractive index? 3. Does your graph of the simple and fractional distillations show any difference in the shapes of the two curves? What does this difference, if any; indicate about the efficiency of fractional distillation relative to that of simple distillation for separating the ethanol/water azeotrope from water? 4....

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