Category: Chemistry

Purpose. Describe the purpose of the lab, i.e. what is being measured and how are you measuring it? State your unknown number in this section. (1 paragraph, 1 paragraph = 4 sentences) Background. Describe any necessary background for the lab. This section should sufficiently describe the experimental method and any calculation used to calculate the quantity measured. (3 paragraphs, 1 paragraph = 5 sentences) Experimental: Summarize the experimental method and explain how each experimental step accomplishes the purpose of the lab. Omit numerical details as the important experimental data is presented in data/observations. A copy or close paraphrase of the handout instructions is not acceptable, write in your own words. Write experimental section in past tense and use the document “Lab 5 Experimental Section” for this part. (3 paragraphs, 1 paragraph = 5 sentences)
Reference: no websites, has to be a peer-reviewed published article. One reference is acceptable

in the attached word is the introduction of a research I want to edit it based on the following instructions: 1- I want it to be checked if all of the sentences and the content is clear and understandable and grammatically correct. 2- I want to rephrase all of the content of the word to be Free of plagiarism and AI Content. 3- Add more information to the Heterocyclic part. 4- In the Thaizine importance part I also want to add additional information to it.

Your mini report should be 3 paragraphs and no more than 2 pages using this file/template. You also need to fully annotate your NMR/IR spectra obtained from the instrument room and submit them as a pdf on LabFlow. Save a new copy of this template and delete this and the text in each paragraph below, replacing it with your analysis!
NMR Analysis
Did you successfully synthesize the target compound? Did you successfully purify the product via simple distillation? Discuss your NMR data to prove formation of the product and to indicate success of the purification via distillation. Be sure to include chemical shifts, integration values, and splitting patterns. Does the experimental data match the NMR predictions? If so, how do the chemical shifts, splitting patterns, etc. deviate from your predictions? How does the NMR prove conversion of the starting material to the product? Is there any evidence in the NMR of leftover starting material that proves distillation success/failure? Discuss the % purity via NMR if there is starting material present. Also discuss any other impurities present (reagents, solvents, etc). Why are they there? Make sure to use the Claim, Evidence, Reasoning format to answer these prompts!
Think/write in the style of claim, evidence, reasoning to help with you discussion! Use your feedback on previous mini report for guidance!
IR Analysis
Did you successfully synthesize the target compound? Did you successfully purify the product via simple distillation? Discuss your IR data to prove formation of the product and to indicate success of the purification via distillation. Be sure to include specific frequencies from your data and what functional group they belong to. How does the IR prove conversion of the starting material to the product? Is there any evidence in the IR of leftover starting material? Does your IR data match what you observed in your NMR spectrum? Any impurities you observed on your NMR should also be labelled and discussed in the IR data (except acetone – that came from cleaning your NMR tube). Noting impurities in an IR spectrum can be tricky and there needs to be a clear peak in order to claim the presence of an impurity. Think in the style of claim, evidence, reasoning to help with you discussion!

Conclusions
Start this paragraph with “In conclusion, the synthesis of isobutyl isobutyrate via Fischer Esterification and subsequent purification by simple distillation was successful/unsuccessful…..” Success can be evaluated as synthesis of product, purity, and/or yield. Use general trends seen in your NMR/IR data to support this statement. Tie all pieces of data together (simple distillation/boiling point observations, smell, NMR/IR data, yield, etc.) in a few sentences. What was the take-home message of this experiment? Were there any major sources of error? What are some thoughtful and scientific improvements for this experiment? Remember, human error should NOT be proposed as a major error or area of improvement. Think about the reaction itself (hint – equilibrium) and how the chemistry, monitoring by GC, work-up, and purification could be improved.
I have attached my data to use and an example

Background
One way to follow the progress of technology is to look at the way energy can be delivered to its inventions. For example, the pacemaker had a very short life when it was first introduced. The invention of the first lithium battery revolutionized its development. Now that you have studied electrochemistry and built a galactic cell, you have an understanding of the chemistry involved in the batteries that power our daily lives.
Requirements
All batteries have a few things in common. Define electrodes, anode, cathode, oxidation, reduction, and electrolyte.
Choose a battery that interests you. This could be one that powers something you use every day, like your computer, or one from the past that allowed the development of a technology that couldn’t progress without its invention.
Give a brief history of this battery. Who invented it? When was it introduced? What were its first uses?
Discuss the chemistry of this battery, including all reactions and the standard cell potential.
Include a drawing or download an image of the major components of this battery.
If it is still in use, how is this battery used today? What properties make it a good choice for its uses.

A chemistry student in lab needs to fill a temperature-control tank with water. The tank measures 21.0 long by 21.0cm wide by 14.0cm deep.In addition, as shown in the sketch below, the student needs to allow 2.0cm between the top of the tank and the top of the water, and a round-bottom flask with a diameter of 11.5cm will be just barely submerged in the water.Calculate the volume of water in liters which the student needs. Round your answer to the nearest 0.1L
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Below is a list of solutions, select ONE and discuss the composition of the solution compared to the pure substances that combine to make that solution. Saline solution for contact lenses
Air
Sugar water
Steel Alloy
Milk
Gasoline
Saltwater
Pancake syrup
Natural gas
Saline drip for dehydrated patients
NOTE: It is required that each student state the solution they are discussing in their Week 1 initial post in the subject line. For Example if your initial post solution is Milk, type Milk in the subject line.

DUE TODAY 2/28/2024 AT 6PM EST NO LATER Once you have completed your research, you will need to prepare an investigation report that consists of three sections. Your report should answer these questions in 2 pages. This report must be typed and any diagrams, figures, or tables should be embedded into the document. Generally, you need one page for the first two sections and the second page for third section. Section 1: What concept were you investigating, and how does it relate to the guiding question? What is the optimum mole ratio for the formation of CO2 from the reaction of sodium bicarbonate and acetic acid? See the introduction for information on reaction stoichiometry, limiting reagents, and mole ratios, and then specifically link these concepts to the guiding question. INCLUDE THE BALANCED CHEMICAL REACTION FOR THE PROCESS PRESENTED IN THE LAB VIDEO. Section 2: How did you go about your work and why? This is NOT the details of your procedure, but discussion of the processes. For example, describe the method for collecting gas and why this was necessary to answer the guiding question. Section 3: What is your argument? You should include the mole and mass calculations table(i.e., THE COMPLETE TABLE FROM THE WORKSHEET) with mL of CO2 added for each reaction FROM THE LAB VIDEO. Discuss the validity and reliability of your data. Make clear your reasoning from mL of CO2 to mole ratio. IN ADDITION TO THE DATA TABLE, include your graph (AS SPECIFIED ABOVE) in your lab report. This is where you not only present your data, but use the values you obtain as evidence in your reasoning. Graphing Website: https://nces.ed.gov/nceskids/createagraph/Links to an external site. (OR USE EXCEL TO CREATE YOUR GRAPH AS SPECIFIED ABOVE) This third section is where you not only present your data, but also use the values you obtain as evidence in your reasoning. Statements like, “see data table for values” are not acceptable!

DUE TODAY 2/28/2024 AT 6PM EST NO LATER Once you have completed your research, you will need to prepare an investigation report that consists of three sections. Your report should answer these questions in 2 pages. This report must be typed and any diagrams, figures, or tables should be embedded into the document. Generally, you need one page for the first two sections and the second page for third section. Section 1: What concept were you investigating, and how does it relate to the guiding question? What is the optimum mole ratio for the formation of CO2 from the reaction of sodium bicarbonate and acetic acid? See the introduction for information on reaction stoichiometry, limiting reagents, and mole ratios, and then specifically link these concepts to the guiding question. INCLUDE THE BALANCED CHEMICAL REACTION FOR THE PROCESS PRESENTED IN THE LAB VIDEO. Section 2: How did you go about your work and why? This is NOT the details of your procedure, but discussion of the processes. For example, describe the method for collecting gas and why this was necessary to answer the guiding question. Section 3: What is your argument? You should include the mole and mass calculations table(i.e., THE COMPLETE TABLE FROM THE WORKSHEET) with mL of CO2 added for each reaction FROM THE LAB VIDEO. Discuss the validity and reliability of your data. Make clear your reasoning from mL of CO2 to mole ratio. IN ADDITION TO THE DATA TABLE, include your graph (AS SPECIFIED ABOVE) in your lab report. This is where you not only present your data, but use the values you obtain as evidence in your reasoning. Graphing Website: https://nces.ed.gov/nceskids/createagraph/Links to an external site. (OR USE EXCEL TO CREATE YOUR GRAPH AS SPECIFIED ABOVE) This third section is where you not only present your data, but also use the values you obtain as evidence in your reasoning. Statements like, “see data table for values” are not acceptable!

For the graphs provided, I need an analysis. These graphs are from a lab where we tested 3 shoes to determine the Co-Polymer Composition (ethylene vinylacetate) (EVA). The SAMPLES we tested are the graphs labeled “Hello Kitty”, “Toy Story”, and “Pink New Balance” The STANDARDS are labeled “AT1231”, “AT1821” and “SA340502”
Standard 1 (AT1231): Nominal wt% vinyl acetate- 12%
Standard 2 (AT1821): Nominal wt% vinyl acetate- 18%
Standard 3 (SA340502): Nominal wt% vinyl acetate- 40%
Questions to answer: Which band(s) in the IR spectrum did you use to determine the ethylene content of the co-polymer? Which band(s) did you use to determine the vinyl acetate content? To which functional groups and vibrational modes do these bands correspond?
For the standards, how do the absorbance intensities change as the composition changes?
Are these changes consistent with compositional changes? Explain
Is it possible to distinguish between the three insoles with only ATR-IR?
Is this technique suitable for routine forensic analysis of copolymer samples? Justify your answer.
Please include the major peaks for EACH IR. The functional groups that can be seen in the IR, and the absorbance changes with composition for the STANDARDS. PLEASE ANSWER THESE QUESTIONS IN SENTENCE FORMAT

do not bid before u read below and know how to understand and follow all directions. only organic chemistry expert
1. ALL questions must be answered fully, all parts of the question.
2. show work for ALL questions. all steps must be shown.
3. professor is very heavy on drawing and not just only explaining. you have to explain and DRAW every single part the questions ask for. 4. don’t just answer the question. this is an exam. all questions must be answered fully, shown every step and explained
5. do not absolutely plagiarize. this will be checked through detector. don’t use AI, don’t use chatgpt or chegg. Absolutely don’t. if I wanted answers from chegg or AI, I would go there and not be here. no internet at all. 6. it absolutely cannot be typed. this is organic chemistry with tons of drawing. must be hand written. u can print it and write or use ink on the iPad.