Category: Natural science

Any topic (writer’s choice)

September 2, 2020 Leave a comment ACS Style, Natural science

Your goal is to present how you are going to synthesize 15 mmol that ester using Fischer esterification method. Narration audio of PPT no more than 15 min in length.

Slide 1-Reaction mechanism   
  Write out the full mechanism (with arrows) for the formation of the ester that was assigned (must be handwritten).

      Comment on the quantities of alcohol/acid/catalyst used in the experiment in terms of reaction kinetics and/or thermodynamic reasoning. Discuss the yield of the reaction in the above terms.

(ask yourself: how would the equilibrium of the esterification reaction change with the addition or removal of H2O/catalyst?)

Slide 2-5-Yield calculations & Procedure- step by step detailed procedure
-Show your handwritten yield calculations (picture from lab notebook is fine)
-Detailed, step-by-step procedures must include

Setting up reaction:

      Follow table from page 105 format include volumes and masses necessary to obtain 15 mmol of your assigned ester. The carboxylic acid is used in a twofold excess, compared to alcohol.

      What is the role of calcium chloride drying tube?

Product isolation:

      For the extraction prepare the scheme/flow chart representing the whole process and identifying in which layer the product is at all steps.

      Explain the role of sodium bicarbonate using reaction to support your answer.

      Comment on the role of anhydrous sodium sulfate.

Product purification:

      Explain how distillation will help you to purify your product.

Physicochemical properties of the ester & Interesting fact about your product
-Report appearance, density, scent, b.p. (can google)
-Report esters particular feature, application

(Provide literature reference for this feature. No websites, Wikipedia, etc. Only original papers!)

Where to get the data?

Chemical databases!  You will find all links here: Chemical Databases

Where do I find the literature?

Best place is SciFinder (link in Chemical Databases)

Technology and the Contemporary Environment

September 1, 2020 Leave a comment APA (edition "APA 6"), Natural science

Hello, the research report includes a discussion of 1 of the following topics focusing on discussing the type of technology and its impact on the surrounding environment: 1. Environmental Issues 2. Water Consumptions & Treatment Objectives 3. Wastewater Treatment & Reuse 4. Air Pollution (Acid Rain, Ozone Loss) 5. Pollution & Contamination 
Attached below is the assignment guideline.

Fischer esterification: Narrated Powerpoint

September 1, 2020 Leave a comment ACS Style, Natural science

Your goal is to present how you are going to synthesize 15 mmol that ester using Fischer esterification method. Narration audio of PPT no more than 15 min in length.

Slide 1-Reaction mechanism   
  Write out the full mechanism (with arrows) for the formation of the ester that was assigned (must be handwritten).

      Comment on the quantities of alcohol/acid/catalyst used in the experiment in terms of reaction kinetics and/or thermodynamic reasoning. Discuss the yield of the reaction in the above terms.

(ask yourself: how would the equilibrium of the esterification reaction change with the addition or removal of H2O/catalyst?)

Slide 2-5-Yield calculations & Procedure- step by step detailed procedure
-Show your handwritten yield calculations (picture from lab notebook is fine)
-Detailed, step-by-step procedures must include

Setting up reaction:

      Follow table from page 105 format include volumes and masses necessary to obtain 15 mmol of your assigned ester. The carboxylic acid is used in a twofold excess, compared to alcohol.

      What is the role of calcium chloride drying tube?

Product isolation:

      For the extraction prepare the scheme/flow chart representing the whole process and identifying in which layer the product is at all steps.

      Explain the role of sodium bicarbonate using reaction to support your answer.

      Comment on the role of anhydrous sodium sulfate.

Product purification:

      Explain how distillation will help you to purify your product.

Slide 6-Physicochemical properties of the ester & Interesting fact about your product
-Report appearance, density, scent, b.p. (can google)
-Report esters particular feature, application

(Provide literature reference for this feature. No websites, Wikipedia, etc. Only original papers!)

Where to get the data?

Chemical databases!  You will find all links here: Chemical Databases

Where do I find the literature?

Best place is SciFinder (link in Chemical Databases)

global economy

August 31, 2020 Leave a comment APA (edition "APA 6"), Natural science

Choose a country of the world other than the United States.

Describe its current economic health by using measurement indicators you learned this week (e.g., GDP, GNI, etc.).
Does its economic status reflect the overall quality of life in the country?
What other countries does it trade with, and what are its chief exports and imports?
What do you see for the future economy of this country? Explain

Discussion and Conclusion Theis chapters

August 31, 2020 Leave a comment APA (edition "APA 7"), Natural science

I need someone to write the discussion and conclusion part of my thesis for a class., which is about mapping extensional/normal faults in the southern Puna plateau. I have uploaded the class syllabus, and all the research I have done so far.
The methods section should be uploaded in a week.

From time to time I will upload revised, better images of profile graphs and fault maps. My intial upload is NOT the final version. I will also message what my supervisor says during meetings if it pertains to order.

I will be uploading additional documents based on the syllabus timeline.
Please let me know if you would like the shp file. Or any additional files.

climate change and the effect on polar bears

August 31, 2020 Leave a comment MLA, Natural science

I am supposed to be writing a paper for my Comp 2 class on solutions and recommendations to my overall assigned topic which is climate change and the impact it has on polar bears. It is 700 words minimum and needs 4-6 citations from 2 different sources. And each solution should have at least one citation from a valid source. I pasted the full list of instructions that are shown on the assignment page for the paper.
I would like this paper to sound educated but not overly informative, but enough where it shows that a decent amount of research was done if that makes sense. Thanks.

You will be researching solutions and making recommendations.  Your solutions need to be supported by research.  Look at what has been tried in the past and evaluate how well it worked.  The number of solutions you propose is up to you.  You might want to propose three solutions and then make a recommendation based on which solutions you think would work best.

Recommendation reports usually begin with a description of the problem.  You have already completed this section when you wrote the technical description paper defining your problem.

This report is going to focus on the solutions to the problem you presented in the technical description.  The recommendation report answers the question, “What is the best option?”

Your job is to do more than provide your client with a recommendation.  You need to provide data to support your conclusions.  The reader will check your research, your logic, and your conclusions before accepting your recommendation.  This means that you must provide research to support your recommendations. You will set up your recommendation report as follows:

Introduction

Your purpose statement should indicate that the document is a recommendation report.  You should provide an overview of the main points to be presented in the paper.

Solutions

You need to decide which possible solutions you are going to present.  You should present more than one solution.  You might want to discuss solutions that have been tried in the past but have not been successful.

When you present the possible solutions, make sure you are very clear and have research to show that this solution is a viable and logical solution that has been tried in the past.  If the solution was successful, give data showing that it was a good choice. Clearly describe the solution as well as its advantages and disadvantages.

Recommendations

After you have presented all of the options, choose the one option that you feel would best meet your client’s needs.  This should be based on effectiveness, cost, support needed, etc. At this point in the report, you can argue for this recommendation over the others by stressing its advantages and providing data to support your argument.

Fukushima incident physics calculations

August 31, 2020 Leave a comment APA (edition "APA 6"), Natural science

Essay on the 2015 Fukushima nuclear accident (see posted instructions). Use the essay template, but this time the limit is 2 pages: the first page for your actual essay with the key results and the second page to show in detail the calculations you did. (Hint: A nuclear power plant is a heat engine. Its thermal power is the total power it produces from fission. The electrical power output is then the thermal power multiplied by the efficiency – which you can calculate from the Second Law of thermodynamics.)