Question

In: Chemistry

Fischer Esterification Post lab question 1. Provide a brief description of how microwave works in the...

Fischer Esterification Post lab question

1. Provide a brief description of how microwave works in the context of this reaction. How does it supply heat/energy to the reaction solution ? What does it mean for a reaction to be microwave promoted ?

We used glacial acetic acid and a primary alcohol .

Solutions

Expert Solution

Nowadays microwaves are used widely in chemical industries in order to help in speeding up chemical reactions. It is a fundamental concept that chemcials reactions often need some type of energy input to initiate the reaction process and speed it up.

In this reaction, we are using acetic acid and a primary alcohol. This is an esterification reaction. Esterification reactions are endothermic, which means that they absorb heat from the surroundings to give high energy products. This means that esterification reactions need energy input so that the reactions can proceed swiftly.

In this context, microwaves supply this energy. Microwaves are a form of electromagentic radiation, just like ordinary visible light, UV light ,etc. Microwaves carry significantly less energy than ordinary light or UV light because they have longer wavelengths and hence smaller frequencies.

When these waves hit the reactant molecules, they are absorbed and hence become a source of energy.

A reaction which is microwave promoted needs a slight push of energy into it in order to begin the chemical changes. These reactions do not have a very high threshold energy, hence microwaves can serve the purpose here.


Related Solutions

Describe the process of each step in the experiment (Fischer esterification/ Isopentyl acetate lab). a. The...
Describe the process of each step in the experiment (Fischer esterification/ Isopentyl acetate lab). a. The reaction is done using a reflux condenser. b. The reaction mixture is washed with water. c. The reaction mixture is washed with aqueous sodium bicarbonate. d. Anhydrous sodium sulfate is added to the top layer. e. The final product is purified by distillation.
Organic II lab: Fischer Esterification: Preparation of Benzocaine The protocol for this week’s experiment calls for...
Organic II lab: Fischer Esterification: Preparation of Benzocaine The protocol for this week’s experiment calls for the adjustment of the pH with sodium carbonate prior extracting the aqueous mixture with diethyl ether. (a) Why is it necessary to adjust the pH to 8? (b) Why would it be unwise to use strong bases such as NaOH or KOH in the pH adjustment? Illustrate your thoughts by a chemical reaction
Give a brief description of the diaphragm box, how it works and its common types.
Give a brief description of the diaphragm box, how it works and its common types.
How would I find the theoretical and percent yield of a Fischer esterification? I used 1.5...
How would I find the theoretical and percent yield of a Fischer esterification? I used 1.5 mL of 1-pentanol (MW: 88 g/mol ; Density= 0.811 g/mL) and 3 mL of glacial acetic acid (MW: 60 g/mol ; Density= 1.06 g/mL). This gave the formation of pentyl acetate (MW: 130.19 g/mol). The crude product was 1.006 g and the distillation product was 0.19 g
1. Provide an example and a brief description of the nursing intervention that is based upon...
1. Provide an example and a brief description of the nursing intervention that is based upon nursing or healthcare theory and the seminal theory/conceptual model. a. Describe the concepts involved in the theory/model. b. What the theory/model states the relationship(s) is/are between the concepts. c. How and why was this theory created?
Provide a brief description of the current Canadian healthcare system
Provide a brief description of the current Canadian healthcare system
Post a brief description of the practice agreements for NPs in Georgia state and the two...
Post a brief description of the practice agreements for NPs in Georgia state and the two physician collaboration issues that you identified. Explain what you think are the barriers to NPs practicing independently in your state. Finally, outline a plan for how you might address NP practice issues in your state.
Post a description of the health policy you selected and a brief background for the problem...
Post a description of the health policy you selected and a brief background for the problem or issue being addressed. Explain whether you believe there is an evidence base to support the proposed policy and explain why. Be specific and provide examples.
Respiratory Physiology Lab 1.  Write a brief description of the changes in the lungs/air passages. 2. What...
Respiratory Physiology Lab 1.  Write a brief description of the changes in the lungs/air passages. 2. What changes in the thoracic musculature would you expect over time in a patient who has      asthma? 3. Asthmatics have decreased ERV and vital capacity.  Additionally, residual volume and FRC may be increased.  How might asthma impact other respiratory volumes and capacities?
Provide a brief introduction/background of the molecule Oseltamivir (Tamiflu) and include a brief description of what...
Provide a brief introduction/background of the molecule Oseltamivir (Tamiflu) and include a brief description of what the molecule is and how the molecule is used. Discuss how does the structure plays a role in its function and why is the shape of the molecule important to its function?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT