Instructions: Type your answers to the following questions and submit an electronic copy of your completed assignment on Canvas. Points for each question are indicated in front of the question. Name your file as CHEM151_HW10_FirstNameLastInitial
Question 1: Theoretical understanding of reaction kinetics (10pts)
After studying the slides, your notes from lecture and your readings, answer the following questions in 2-3 sentences for each part:
CH3OH + CH3CH2OCOCH3 ⟶ CH3OCOCH3+CH3CH2OH
Question 2 (5pts)
After doing the readings from section 20.1 of Van Loon and Duffy and/or the slides, answer the following questions in 2 sentences for each part:
Question 2 (5x5pts) Basic calculations of rates
H2(g) + Br2(g) à 2 HBr rate = k [H2][Br2]
The hypothetical reaction, A + B à C, has the rate law: Rate = k[A]x[B]y
When [A] is doubled and [B] is held constant, the rate doubles.
The rate increases fourfold when [B] is doubled and [A] is held constant.
What are the values of the exponents x and y?
The following experimental data were obtained for the reaction
2 A + 3 B à C + 2 D
Determine the reaction order for each reactant and the value of the rate constant.
|[A] (mol/L)||[B] (mol/L)||Rate = d[C]/dt (mol/L/s)|
Question 3: Basic calculation of half-life for 1st order reactions (15 pts)
Question 4: Using the equation for first order kinetics – exponents/logarithms practice (15pts)
Consider dieldrin, a pesticide in the category of organochlorines. It has a half-life of 934 days. After calculating its reaction rate constant, assuming first order kinetics, calculate the following:
Question 5 – Determining order of reaction and reaction rate from exp data (10pts)
[EXCEL NEEDED] A new organic compound is tested to determine its kinetics and reaction rate. Concentrations of the chemical were measured under the same conditions for 50 hours, starting at a concentration of 14 ppm. The data from the experiment is given below:
|time (hr)||C (ppm)|
Question 6 [11.49] Determining order of reaction and reaction rate from exp data (15pts)
[EXCEL NEEDED] The rate of photodecomposition of the herbicide picloram in aqueous systems was determined by exposure to sunlight for a number of days. One such experiment produced the following results, (Data from Hedlund, R.T., Youngston, CR. “The Rates of Photodecomposition of Picloram in Aqueous Systems,” Fate of Organic Pesticides in the Aquatic Environment, Advances in Chemistry Series, #111, American Chemical Society, (1972), 159–172.)
|time (days)||C (umol L-1)|
Question 7 [11.57] – Arrhenius relationship for k dependence on temperature (5pts)
[EXCEL NEEDED] The table below presents rate constants measured at three temperatures for the following reaction, which is involved in the production of nitrogen oxides in internal combustion engines.
O(g) + N2(g) à NO(g) + N(g)
Determine the activation energy of the reaction in kJ/mol.
|k (L/mol/s)||Temperature (K)|
Custompaper.help is an academic writing platform that provides students and professionals with quality services to ease their assignment challenges. With a wide range of services, the platform has become one of the leading academic writing service providers in the market due to its reliability and affordability. Below, we shall discuss some of the services which Custompaper.help provides:
Essay Writing Service
The essay writing service provides customers with quality essays on any subject or topic they requested within a given deadline. The writers at custompaper are experts in their respective fields, and they ensure customer satisfaction by producing original content with thorough research involved backed up with strong evidence from reliable sources available online or offline. All essays come with free plagiarism reports as well as revisions if needed so that customers can trust that they are getting high-quality work for their money’s worth.
Research Paper Writing Service
This is another popular service offered by custom paper help wherein customers are assisted in conducting research papers according to their needs and requirements within specified deadlines. Writers at custom paper help have vast knowledge about various topics belonging to different disciplines such as Management, Arts & Humanities, History etc., allowing them to craft impeccable research papers every time regardless of the complexity or urgency level requested by customers. Additionally, all our research papers come along with proper citation formats which ensures customer’s safety when it comes to plagiarism issues while also helping them save time on formatting procedures thus improving overall efficiency even further!
Dissertation Writing Service
CustomPaperHelp also offers dissertation writing assistance for those who need it most – students preparing for graduation or professionals wanting to further refine their skills through higher education levels such as Master/PhD degrees etc, Our team of writers consists of experienced individuals having Master’s/PhD degrees themselves so you can rest assured that your dissertation will be handled expertly from the start till the end! Furthermore, we offer unlimited revisions until your complete satisfaction is achieved, along with regular checkups being done throughout the process just so everything goes according to course without any hiccups!
Editing And Proofreading Services
If you already have written an essay but want professional feedback before submitting it, then CustomPaperHelp also offers editing & proofreading services which helps in identifying & rectifying errors present in assignments like grammar mistakes, spelling mistakes, punctuation problems etc., thereby ensuring top-notch quality work, before submission takes place! We understand how important accuracy & consistency are when it comes to grading systems used at universities nowadays, so taking extra care during this phase becomes absolutely essential if good grades are desired afterward!
For those who find coursework difficult due to complications of being quite technical in nature; CustomPaperHelp extends its support here too, by providing quality solutions every single time – starting from understanding concepts properly up until composing flawless answers following university guidelines closely enough making sure no loopholes remain whatsoever! Whether it’s related math problem-solving algorithms or lengthy home assignments – our expert panel has got you covered from head-to-toe leaving no stone unturned during this very crucial stage since final grades depend largely upon the success rate achieved here successfully!
Assignments form an integral part of getting better scores & ultimately, a degree itself (in case pursuing a masters/PhD) – something only possible if precision is made a priority right away; otherwise, chances of failure increase exponentially over a time period detrimentally affecting performance evaluation systems later down road drastically hence stressing timely importance completion prior commencement other operations associated same project altogether consistently meeting high standards expected each situation respectively! Here too, CustomPaperHelp presents comprehensive solution package exceeding expectations beyond point offering optimal values therein ensuring maximum satisfaction reached under circumstances prevailing accordingly without fail…proving once more why people trust us implicitly without second thought whatsoever!!
Why Choose Us
We value our clients. For this reason, we ensure that each paper is written carefully as per the instructions provided by the client. Our editing team also checks all the papers to ensure that they have been completed as per the expectations.
Professional Academic Writers
Over the years, our Acme Homework has managed to secure the most qualified, reliable and experienced team of writers. The company has also ensured continued training and development of the team members to ensure that it keep up with the rising Academic Trends.
Our prices are fairly priced in such a way that ensures affordability. Additionally, you can get a free price quotation by clicking on the "Place Order" button.
We pay strict attention on deadlines. For this reason, we ensure that all papers are submitted earlier, even before the deadline indicated by the customer. For this reason, the client can go through the work and review everything.
At Custom Paper Help, all papers are plagiarism-free as they are written from scratch. We have taken strict measures to ensure that there is no similarity on all papers and that citations are included as per the standards set.
Customer Support 24/7
Our support team is readily available to provide any guidance/help on our platform at any time of the day/night. Feel free to contact us via the Chat window or support email: email@example.com.
Try it now!
How it works?
Follow these simple steps to get your paper done
Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Choose the payment system that suits you most.
Receive the final file
Once your paper is ready, we will email it to you.
Custom Paper Help has stood as the world’s leading custom essay writing services providers. Once you enter all the details in the order form under the place order button, the rest is up to us.
At Custom Paper Help, we prioritize on all aspects that bring about a good grade such as impeccable grammar, proper structure, zero-plagiarism and conformance to guidelines. Our experienced team of writers will help you completed your essays and other assignments.
Admission and Business Papers
Be assured that you’ll definitely get accepted to the Master’s level program at any university once you enter all the details in the order form. We won’t leave you here; we will also help you secure a good position in your aspired workplace by creating an outstanding resume or portfolio once you place an order.
Editing and Proofreading
Our skilled editing and writing team will help you restructure you paper, paraphrase, correct grammar and replace plagiarized sections on your paper just on time. The service is geared toward eliminating any mistakes and rather enhancing better quality.
We have writers in almost all fields including the most technical fields. You don’t have to worry about the complexity of your paper. Simply enter as much details as possible in the place order section.