Enzyme-Catalyzed Oxidation of Tyrosine
Determine the behavior of the tyrosine reaction with an enzyme tyrosinase.
Explain the material information as Menten equation in different form which help to separate variables such as Vmax and the Km .
Category: Chemistry
What is good about you that means you could/should study pharmacy.Why is that skill important for pharmacy – because pharmacists need to do x y and z.
Personal statement for pharmacy
Write about what skills you’re looking forward to developing even more and why – develop leadership skills more because working as a professional you need to have a structure in the workplace and be able to take responsibility.
What is good about you that means you could/should study pharmacy
Situation in which you either developed a skill, or used and refined a skill you already had
What is the skill
Why is that skill important for pharmacy – because pharmacists need to do x y and z
The chemical reaction which occurs during the Haber process is: Nitrogen + Hydrogen ,’ Ammonia N2(g) + 3H2(g) ,’ 2NH3(g)-Explain Le Chatelier’s principle.
Chemistry
Chemical Change Assignment 2
SECTION 4 (AC4.1 / AC4.2) (A) For the following reactions, determine the equilibrium constant equation. You must show your workings
within your submission.
1) CO2(g) + H2(g) ,=’ CO(g) + H20(g) 2) 2N0(g) + 2H2(g) ,’=” N2(g) + 2H20(g) 3) Cu(s) + 2Ag+(g) ,n’ Cu24-(g) + 2Ag(s) 4) H2(g) + 12(g) ,=’ 2HI(g)
(B) Read the following relating to the Haber process:
“The raw materials for this process are hydrogen and nitrogen. Hydrogen is obtained by reacting natural gas – methane – with steam, or through the cracking of oil.
Nitrogen is obtained by burning hydrogen in air. Air is 80% nitrogen; nearly all the rest is oxygen. When hydrogen is burned in air, the oxygen combines with the hydrogen, leaving nitrogen behind. Nitrogen and hydrogen will react together under these conditions:
A high temperature – about 4500C
A high pressure – about 200 atmospheres (200 times normal pressure)
An iron catalyst”
The chemical reaction which occurs during the Haber process is: Nitrogen + Hydrogen ,’ Ammonia N2(g) + 3H2(g) ,’ 2NH3(g)
1. Explain Le Chatelier’s principle.
2. Use Le Chatelier’s principle to explain what would happen if you raised the temperature of this reaction.
3. Use Le Chatelier’s principle to explain what would happen if you increased the pressure of this reaction.
4. Use Le Chatelier’s principle to explain what would happen if you increased the concentration of Nitrogen at the start of the reaction.
Your response for this question should be a maximum of 500 words.
Chemical Change Assignment 3
Evaluate bio/chemical and electrochemical sensors in the area of Forensic and Analytical Sciences.
Paracetamol analysis using Voltammetry
1. Contrast and compare different sensor techniques and sample treatment in forensic and analytical procedures;
2. Evaluate the best sensors to characterise different toxics and agents of interest using suitable instrumentation;
3. Criticise procedures useful from a forensic and analytical prospective and implement alternative methods;
4. Design and evaluate methods for discrete and digital signal processing, including filtering of processed data;
5. Assess the usefulness of materials, technologies and devices used in sensor technology for their use in Forensic and Analytical Sciences;
6. Evaluate bio/chemical and electrochemical sensors in the area of Forensic and Analytical Sciences.
The marks will be assigned as follows: Introduction (20%), materials and methods (20%) discussion (40%), Conclusions (10%), References (10%)
For referencing the literature you MUST follow the guidance: ‘Referencing Handbook:Printed copies are available in the library and you can download the free app by quoting the title in the App Store.
You are also advised to comply with the guidance given at the front of this pack – failure to do so will incur a deduction in your mark.
Late submissions will incur in a deduction of marks proportional to the number of days that the assignment is handed in after the due date (10% per day)
If you have any queries or comments on the clarity of brief, etc ., contact the tutor.
Your task is to focus on these three elements and identify all the health, safety, and environmental issues associated with their use and describe a green alternative for each element.
CHM2211L is certified as a Global Citizens course and may be used to fulfill partial requirements of the Global Citizen Award upon successful completion of the course (final grade of B or higher).
The GCP project is on green chemistry. At the end of the semester, you are required to prepare singled spaced 4 pages or a 2000 ̶2200 word essay for the GCP assignment.
Students will use the following 3 elements that represent a potential target for replacement by a greener alternative: Reaction conditions, products, and by products.
Your task is to focus on these three elements and identify all the health, safety, and environmental issues associated with their use and describe a green alternative for each element.
For example, when you discuss Reaction conditions, you must begin with an overview of the most common reaction conditions (temperature, pressure, catalyst, etc.) for chemical reactions, and processes, examining the reasons for the global concerns associated with them.
Then, you must describe the greener alternatives to the use of reaction conditions such as substitution by safer reaction conditions, modification of processes to allow the use of new or unusual reaction conditions.
You must introduce several examples in your essay for the successful completion of your assignment. There will be a very useful lecture that will be posted on canvas and students can use this video to prepare their essays. This portion of the assignment constitutes 10%of the final grade
How do you know when you need to add one or more multiple bonds to complete a Lewis structure?
N/A
1. What is the difference between a single bond and a multiple bond? (5 points)
2. Why is the ability to draw a Lewis structure considered a core chemistry skill? (10 points)
3. Draw the Lewis structure for hydrogen, the simplest molecule and explain the drawing. (10 points)
4. Draw the Lewis structure for PCl3, phosphorus trichloride, the chemical used commercially to prepare insecticides and flame retardants. Explain the drawing. (10 points)
5. Draw the Lewis structure for HCN, which has a triple bond. Explain the drawing. (10 points)
6. How do you know when you need to add one or more multiple bonds to complete a Lewis structure? (5 points)
Chemistry: An Introduction to General, Organic, and Biological Chemistry Textbook
How they could be avoided?Discuss the strengths and limitations of your experiment
Dry lab report on (Preparation of Ethyl 4-aminobenzoate)
You should be able to work out a percentage yield for your virtual experiment using the data. You can then compare yield, MP/BP and IR to the expected results in literature.
Introduction (20%)
Should include the following
Aim of the report
Background on the molecule you have chosen to synthesize
Mechanism for the synthesis reaction – a diagram and your understanding of it.
Important theory behind the experiment
Method (25%)
Should include the following
Method should cover both the synthesis of the molecule and purification of it from any impurities.
Comparison of method or part of method to at least one alternative
Demonstrate understanding of why each step is being carried out
Considerations of Health and safety issues (major points should be clear in the method but an appendix at the end of the report for all chemicals used in the experiment, this includes products and impurities).
Detail of the method you have chosen so that someone else could replicate the method
Results (20%)
Your report should include the following:
Percentage yield calculations using your set of dry data, see separate data sheet for your data set.
Analysis of IR results for your compound including identification of key peaks and possible impurities. This can be for the product and starting compounds.
Analysis of melting point/boiling point data
Discussion and Conclusion (30%)
Should include the following:
Compare results with what you expected to get
Analyse the experimental error
cause and size of errors and their impact.
How they could be avoided?
What do the results mean? – link them back to the theory
How do they compare with others work? This should be referenced sources not other data in the results for students.
Link your results back to your objective in your introduction.
Discuss the strengths and limitations of your experiment
Use of referencing (5%)
Appendix
You may like to include the following as an appendix,-= note all key information should be in the main part of the report with appendices used for supporting information.
H&S information
equipment lists
Detail of any calculations carried out (key details should be in the body of the text but if you want to break down the steps in more detail you can add this as an appendix).
(Have uploaded a file with my draft which need some improvement and changes im going to upload the tutor’s feedback on what’s to improve)
Select the energy-generation method of your choice and provide a chemistry-based discussion of the pros-and cons of that form of energy generation.
Energy Generation
Write an 800+ word summary on the energy generation method of your choice.
As we briefly discussed in class, energy that we use as electricity can come from many forms such as: petroleum, natural gas, solar, wind, nuclear, and many more.
Select the energy-generation method of your choice and provide a chemistry-based discussion of the pros-and cons of that form of energy generation.
This is to say, not a discussion that is driven by politics or economics (although these can slip in occasionally) but one based on chemical reactions, health hazards, etc.
Describe how the changes in DNA can become cancerous. Explain the effects of radiation on DNA.
Prepare a full 2 pg paper in which you analyze the effects of ionizing radiation on Deoxyribonucleic acid (DNA) to provide a chemical reason as to
why this might cause cancer. In your paper, include the following items:
o Describe alpha, beta, and gamma radiation.
o Analyze the chemistry of DNA.
o Explain the effects of radiation on DNA.
o Describe how the changes in DNA can become cancerous.
Format your reflection consistent with APA guidelines.
Must have 3 references outside of the text and must have the correct reference page and in-text citations.
have attached the rubric and a template.
You may use a online citation generator.