Reagent Data Table. Fill in the missing values for each entry.
[4] note: if you were unable to determine the yield, you must give an example yield calculation
Table 1. Reagent and Yield Data for the synthesis of butyl acetate from cesium acetate.
Compound Amount MW (g/mol) mmoles Stoichiometry/Comments
acetaminophen 350 mg
ethyl iodide 300 µL
(d = g/mL)
NaOEt 2.6 mL
ethanol 2 mL
phenacetin product obtained: 0.0175 g
crude product yield1 =
recrystallized yield1 =
In: Chemistry
A box is allowed to slide a distance d down a ramp a constant speed while being pushed by a horizontal force, Fa. The mass of the box is m. The ramp is inclined at an angle of above the horizontal. If the coecient of kinetic friction between the box and the ramp is k, how much work is done by the horizontal force as the box moves a distance d down the ramp? Your answer should only contain the parameters m, d, , k, and the physical constant g.
In: Physics
Please construct a nondeterministic, deterministic, and minimum deterministic finite state machine for the following regular expressions. You have to show the construction process, not just the final result.
1) acb*a | bba*b+
2) d*adc | (a)b*bc*d
In: Computer Science
Using indifference analysis and income constraints, explain why you don’t just eat lobster every day for breakfast, lunch, and dinner.
In: Economics
An EM wave traveling through a vacuum has a frequency of 7.97×1014 Hz. Determine the WAVELENGTH of the wave. Remember, the speed of light is 3×108 m/s. ANS:_________m/wave
In: Physics
4. In the near future, it will soon be possible for people to increase their muscle mass by introducing extra copies of the gene for insulin-like growth factor into their muscle cells.
a. What therapeutic applications can you see for such procedures? [2 marks]
b. It is possible that some people might use this procedure for cosmetic purposes—to gain muscle mass without exercise. Do you think that this would be acceptable, bearing in mind that humans already use cosmetics to change their appearance? [2 marks]
In: Biology
In: Operations Management
Introduction
Deciding to conduct formal market research is a significant decision for a firm. The following is an excerpt from a meeting, where the participants are discussing the for/against of whether to conduct more market research prior to the full launch of their new product.
As you read through the excerpt, identify the for/against reasons. Given these arguments, would you recommend that the firm go ahead and do the research?
Activity/Task
Jane: OK team, we’re getting near the end of the project, time to discuss the merits of a market test. Personally, I’m keen on a market test as the successful launch and fast adoption of our product is a key success factor.
Bruce: I’m going to disagree. I’m a ‘speed-to-market’ sort of guy. Look it’s a good product. It’s got success written all over it. Let’s just get it out there and the product will do the rest.
Mike: Sure Bruce, it’s a good product. But unless it’s well promoted, widely available, and the consumers clearly understand its benefits – it just won’t sell well. A market test will give us valuable information so we can market it more effectively.
Harry: But do we really need that information? We're professional managers and we've all been through major product launches before. I'm sure that between all of us we can work out the best way to strategy without extra information.
Simon: Well I'm not so sure Harry. I’ve said it before, and I’ll keep saying it. This product is so critical – it’s just too important – we must test it and get it right.
Mary: To add to this discussion, I’m going to put my finance hat on. We’re talking a big expense. This product already has a big investment to recover and adding another few hundred thousand dollar more is a big ask!
Lyn: Personally, I think that undertaking more research sends a bad signal to the executive team that we’re really not confident in the product’s likely success.
Darcy: That could be true. But I’ve heard rumors that a few of our competitors are in development of a similar product. We need to go now or we’ll possibly lose our “first-to-market” advantage. I think that the executive team would be very disappointed if a competitor beat us to the marketplace.
Anna: I'm sure that some of you feel like I do. We've been working on this project for over two years and it would be good to skip the research and just push the product out now.
But we’re professional. We’re paid to make the right decisions. So let’s weigh up the pros and con and make the right decision for the firm.
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Reasons 'for' conducting the market research |
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Reasons 'against' conducting the market research |
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Would you go ahead and conduct the research? Why/why not? |
In: Economics
Two point charges are fixed on the y axis: a negative point charge q1 = -27 µC at y1 = +0.20 m and a positive point charge q2 at y2 = +0.30 m. A third point charge q = +8.0 µC is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges has a magnitude of 19 N and points in the +y direction. Determine the magnitude of q2.
In: Physics
What is the pH of a solution made by adding 100g of sodium acetate to 500mL of water?
please answer in detail ,
In: Chemistry
IN PYTHON:
Write a program that asks the user for a path to a directory, then updates the names of all the files in the directory that contain the word draft to instead say final
EX: "term paper (draft).txt" would be renamed "term paper (final).txt"
BONUS (5pts): for any .txt file that your program changes the name of, have your program add a line of text that states "Edited on " followed by the current date to the end of the text in the file that it is editing.
In: Computer Science
c++
LINEAR SEARCH ARRAYS OF OBJECTS
Use the Item class defined in question #12.
1. (3 pts) Declare an array of 1024 Item objects. Assuming the array is now sorted by Value (price per item * quantity).
2. Write a function (with both declaration/prototype (3 pts) and definition (6 pts) ) that takes an array of Item objects, an integer as array size and two references to integers that represents the start_index and end_index of Item object elements whose Values are 50.0.
The function's implementation should be:
An example of such array of Items will be the below:
index 0 1 2 3 4 5 6 7 8 9 ........
Value 21.4 23.3 50.0 50.0 50.0 67.5 88.0 88.3 95.2 141.5 ....... (Note that the array is sorted)
In this example your function must assign 2 to start_index and 4 to end_index.
#12
This question has two parts:
Part 1: Define an Item class with the following specifications:
NOTE: you must declare and define the class separately. Include the definitions of constructors/destructor and member functions in class declaration will result in 50% point deduction.
NOTE: The class definition must follow Google naming convention for class name, member data names and member function names (do not use camelCase convention)
Part 2: (5 pts)
Instantiate two Item objects: one using the default constructor and the other using the non-default constructor (description: "Toys", quantity: 100, price per item: 29.95).
Invoke the company name (static data).
Set the price per item of the default object to the non-default object's price per item.
Output the Value of the non-default object.
Increment the default-object's quantity to 9999.
In: Computer Science
DNA transposons and retrotransposons are similar:
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they both have poly-A segments at one end. |
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both can encode an enzyme required for mobilization. |
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transposition results in movement of the original transposon to a different place in the genome, losing the previous spot. |
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during transposition, both go through an RNA form that is copied back into DNA. |
In: Biology
Suppose that a country’s inflation rate increases sharply. Explain what happens to inflation tax on the holders of money? . Can you think of anyway in which holders of savings accounts are hurt by the increases in the inflation Rate?
In: Economics
The following is the balance sheet of Korver Supply Company at December 31, 2020 (prior year). KORVER SUPPLY COMPANY Balance Sheet At December 31, 2020 Assets Cash $120,000 Accounts receivable 300,000 Inventory 200,000 Furniture and fixtures (net) 150,000 Total assets $770,000 Liabilities and Shareholders’ Equity Accounts payable (for merchandise) $190,000 Notes payable 200,000 Interest payable 6,000 Common stock 100,000 Retained earnings 274,000 Total liabilities and shareholders’ equity $770,000 Transactions during 2021 (current year) were as follows: 1. Sales to customers on account $800,000 2. Cash collected from customers 780,000 3. Purchase of merchandise on account 550,000 4. Cash payment to suppliers 560,000 5. Cost of merchandise sold 500,000 6. Cash paid for operating expenses 160,000 7. Cash paid for interest on notes 12,000 Additional Information: The notes payable are dated June 30, 2020, and are due on June 30, 2022. Interest at 6% is payable annually on June 30. Depreciation on the furniture and fixtures for 2021 is $20,000. The furniture and fixtures originally cost $300,000.
Required: Prepare a classified balance sheet at December 31, 2021, by updating ending balances from 2020 for transactions during 2021 and the additional information. The cost of furniture and fixtures and their accumulated depreciation are shown separately.
In: Accounting