2 free response questions

Q3 From Atoms to Molecules (File Upload)17 Points
We spent the first part of the term exploring the evolution of the atomic model. [Recall that a scientific model is “a physical and/or mathematical and/or conceptual representation of a system of ideas, events, or processes.”] The attached infographic nicely summarizes each of the models [see below, and full image on Canvas], their experimental underpinnings, their strengths and their shortcomings. These developments in science are what the philosopher Thomas Khun described as revolutionary (or ‘extraordinary’) science, which is underpinned by major paradoxes and paradigm shifts.

Use the atom infographic as an example to follow, and on a page draw by hand an infographic of bonding theories, from Lewis to Valence Bond and Molecular Orbital Theory. Use two different diatomic molecules (such as N_2N2, O_2O2, or F_2F2) to illustrate how the models provide an increasing level of detail and complexity as they are applied to your examples. ie. You should show how the bonding description changes from Lewis to Valence Bond to Molecular Orbital theories. What are the benefits and shortcomings of each model?
Here is your Infographic checklist:
General description of bonding;
Brief description of each bonding theory;
For each bonding theory:
• 2 fully developed bonding examples (*with appropriate labels and other descriptions)
• Benefits of the bonding theory
• Shortcomings of the bonding theory
Please reference all resources that you used in developing your infographic.
Grading: 2 pt for general description of bonding; 5 pts for each Model (description, two examples, benefits and shortcomings/challenges)
Q4 Chemistry in Context – Your Life3 Points
Throughout the quarter we’ve investigated chemical phenomenon from four perspectives – symbolic, particulate-level, macroscopic and the human dimension.
How has what you learned in CHEM 6A been relevant to YOU? Pick one major concept from the quarter and briefly describe how you might encounter/use this knowledge in your anticipated major and/or career. Limit your response to 3-5 sentences.
Grading: 1 pt for description of concept, 2 points for establishing connections to your major and/or career.

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Answer the pre lab AND report sheet questions on the PDF

Some of the answers to the report sheet are here:
Fill in the table in number 1 on your report sheet.
Start by drawing the Lewis structure for each molecule. See page 152 in your lab manual, or watch the following video, which further explains how to draw Lewis structures.

Next, use your Lewis structure to complete a virtual three-dimensional model of your molecule at the following website: https://phet.colorado.edu/en/simulation/molecule-shapes
After entering the simulation, be sure to pick the ‘model’ option. Be sure to include the proper number of bonds and lone pairs.
Use your structure, along with help from the following videos, to complete the rest of the table.
The following videos further explain the VSEPR theory.

The following video further explains central atom hybridization.

The information in the table below will also be useful in determining central atom hybridization.
Total Electron PairsBonding PairsLone PairsMolecular GeometryAtomic OrbitalsType of Hybridization220linears, psp330trigonal planars, p, psp2321bents, p, psp2440tetrahedrals, p, p, psp3431trigonal pyramidals, p, p, psp3422bents, p, p, psp3550trigonal bipyramidals, p, p, p, ddsp3541seesaws, p, p, p, ddsp3532T shapes, p, p, p, ddsp3523linears, p, p, p, ddsp3660octahedrals, p, p, p, d, dd2sp3651square pyramidals, p, p, p, d, dd2sp3642square planars, p, p, p, d, dd2sp3The following video further explains how to determine if a molecule has a dipole moment.

The information above will help in completing numbers 1-5 on your report sheet.
Please replace the chart on page 163 in your lab manual with the chart provided below.
Molecular Geometry Table Page 163
To complete number 6, watch the following video, which further explains how to determine formal charge.

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Beyond Labz Charles’ Law

Beyond Labz Charles’ Law: Temperature and Volume
In this simulation you will investigate the effect of temperature on the volume of a gas at constant pressure and amount of gas. In the virtual experiment you will change the temperature of a balloon, containing a fixed amount of gas that is held at constant pressure, and record the volume at each temperature. You will graph your data and make inferences about the relationship between volume and temperature. You will also answer a question related to your general knowledge of the gas laws.
As a basis for understanding this lab you should read Chapter 10, section 10-2. You can also refer to week 14materials.
Beyond Labz Instructions
First download the worksheet for the Charles’s Law
Actions
experiment. The worksheet contains instructions for how to perform the lab and areas to collect your data, and answer post lab questions. You will need to print this worksheet so that you can fill it in and submit it.It is a good idea to read through the entire worksheet first before you begin so that you are aware of what is expected.
You also need to download Charles_Law_Plot_Ideal_Gas, a MS-Excel file that will allow you to conveniently plot your data as directed in the worksheet. You will need to submit this as part of your work.
As you progress through the simulation, fill in data and observations on the worksheet in blue or black ink. No pencil! Even though this is a virtual lab this is good lab practice and also important to make sure your submitted work will be clear enough to grade.
OK. Login to the Beyond Labz v3.0 portal (gibbs.beyondlabz.com (Links to an external site.)) then come back to THIS page. Skip this if you are already logged in.
Now click here to launch the Charles’s Law simulation (Links to an external site.). This will open a new window/tab and take you directly to the lab simulation. If you get an error page, try login again and then reclick the link.
Preparing and submitting your work
You must submit your completed worksheet and the completed MS-Excel file with your plot of volume vs temperature.
After you complete the worksheet, take a picture of each completed page or scan them. Make sure the quality is good enough to view clearly. If I cannot read it, I will not grade it.
It is best to submit as a PDF or .jpeg (jpg) file. You can submit one file for each page of the table or combine them into one file.
It is best if you submit one file for each simulation.
Check out free PDF Converter (Links to an external site.) and free PDF Merge (Links to an external site.) tools to convert photos to PDF and combine multiple PDF into one file. SmallPDF (Links to an external site.) also has other free tools for working with PDF files.
Please name your worksheet file for submission using the convention “Lastname_FirstInitial_Charles” replacing “Lastname” and “FirstInitial” with your own lastname and first initial (for example: Dutnall_R_Charles.pdf).
Rename the MS-Excel file as “Lastname_FirstInitial_Charles_Law_Plot” replacing “Lastname” and “FirstInitial” with your own lastname and first initial (for example: Dutnall_R_Charles_Law_Plot.xlsx).
When you are ready, click the “Submit Assignment” button at the top of this page and use the options available to upload your worksheet and MS-Excel files. Remember to click “Submit”.
If you need help, or have not submitted an assignment in Canvas before, check out this assignments help video

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Chemistry

1. The efficiency of a Carnot engine is 40%. If heat absorbed at 727°C then what is the low temperature?
2. The high temperature of a Carnot engine is 600 K. If the engine absorbs 600 J of heat and the low temperature is 400 K, what is the work done by the engine.

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Chemistry

1. The efficiency of a Carnot engine is 40%. If heat absorbed at 727°C then what is the low temperature?
2. The high temperature of a Carnot engine is 600 K. If the engine absorbs 600 J of heat and the low temperature is 400 K, what is the work done by the engine.

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What is chemical engineering? What do chemical engineers do?Where is chemical engineering used?

Chemical engineering involves the production and manufacturing of products through chemical processes. This includes designing equipment, systems, and processes for refining raw materials and for mixing, compounding, and processing chemicals.
Chemical engineers translate processes developed in the lab into practical applications for the commercial production of products, and then work to maintain and improve those processes. They rely on the main foundations of engineering: math, physics, and chemistry. Biology also plays an increasingly important role.
What do chemical engineers do?Broadly, chemical engineers conceive and design processes involved in chemical manufacturing. The main role of chemical engineers is to design and troubleshoot processes for the production of chemicals, fuels, foods, pharmaceuticals, and biologicals, to name just a few. They are most often employed by large-scale manufacturing plants to maximize productivity and product quality while minimizing costs.
Chemical engineers affect the production of almost every article manufactured on an industrial scale. Some typical tasks include:
Ensuring compliance with health, safety, and environmental regulations
Conducting research into improved manufacturing processes
Designing and planning equipment layout
Incorporating safety procedures for working with dangerous chemicals
Monitoring and optimizing the performance of production processes
Estimating production costs
Chemical engineers who work in business and management offices often visit research and production facilities. Interaction with other people and team collaboration are critical to the success of projects involving chemical engineering.
Chemical engineers typically work in manufacturing plants, research laboratories, or pilot plant facilities. They work around large-scale production equipment that is housed both indoors and outdoors. Accordingly, they are often required to wear personal protective equipment (e.g., hard hats, goggles, and steel-toe shoes).
Where is chemical engineering used?Chemical engineering is most often found in large-scale manufacturing plants, where the goal is to maximize productivity and product quality while minimizing costs. The aerospace, automotive, biomedical, electronic, environmental, medical, and military industries use chemical engineering to develop and improve their technical products, such as:
Ultrastrong fibers, fabrics, and adhesives for vehicles
Biocompatible materials for implants and prosthetics
Films for optoelectronic devices

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analytical chem results and discussion

Hello, I only need the result and discussion sections of a report. It is very important to follow the rubric. it must be paragraphs, attached the rubric, data, and question the you need to answer for in the result and discussion sections as paragraphs and tables.
this is the link to download the textbook for free. you will need to use the textbook:
https://b-ok.cc/book/3338575/951c19

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oChem project

Two different paragraphs explaining each. First picture is for lab 1, 2nd picture is for lab 2. Use basic university knowledge in organic chem 1 and 2. please provide detailed explanation.
the product for the Grignard solution is triphenylmethanol . the product for the Wittig is ethyl p-nitrocinnamate
lab 1: Analyze your NMR spectra and upload a picture of it on this assignment. In your spectra, you should have the approximate chemical shifts of each peak. You also have to include an explanation matching up the peaks in your NMR spectra to that of the product. Explain why you think you got your product and not just starting material. If you have extra peaks in your NMR that do not match up to any proton peaks in your product, explain where they could have come from. Every peak must be accounted for
lab 2: Analyze your NMR spectra and upload a picture of it on this assignment. In your spectra, you should have the approximate chemical shifts of each peak. You also have to include an explanation matching up the peaks in your NMR spectra to that of the product. Explain why you think you got your product and not just starting material. If you have extra peaks in your NMR that do not match up to any proton peaks in your product, explain where they could have come from. Every peak must be accounted for

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Short

Hello,
Attached in the file upload section, you will find a document which consist of a short and simple exercise.
Along with the exercise, there comes instructions/details and guidelines to go along with to guide you to complete the exercise.
Please, complete the exercise following all detailed instructions and guidelines as provided and show/explain work and thought process.
PLEASE TYPE EVERYTHING UP!!!
Thank you so much in advance!

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Short

Hello,
Attached in the file upload section, you will find a document which consist of a short and simple exercise.
Along with the exercise, there comes instructions/details and guidelines to go along with to guide you to complete the exercise.
Please, complete the exercise following all detailed instructions and guidelines as provided and show/explain work and thought process.
PLEASE TYPE EVERYTHING UP!!!
Thank you so much in advance!

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THIS QUESTION HAS BEEN ANSWERED BY OUR WRITERS


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