An aqueous solution contains 0.459 M hydrocyanic acid. How many mL of 0.244 M potassium hydroxide would have to be added to 150 mL of this solution in order to prepare a buffer with a pH of 9.300? mL note in case u need this
|
Acid/Base Ionization Constants at 25 oC |
||||
|---|---|---|---|---|
|
Acid |
Formula |
Ka1 |
Ka2 |
Ka3 |
|
Acid/Base Ionization Constants at 25 oC |
||||
|
Acid |
Formula |
Ka1 |
Ka2 |
Ka3 |
|
Acetic acid |
CH3COOH |
1.8×10-5 |
||
|
Acetylsalicylic acid (aspirin) |
HC9H7O4 |
3.0×10-4 |
||
|
Aluminum ion |
Al(H2O)43+ |
1.2×10-5 |
||
|
Arsenic acid |
H3AsO4 |
2.5×10-4 |
5.6×10-8 |
3.0×10-13 |
|
Ascorbic acid |
H2C6H6O6 |
7.9×10-5 |
1.6×10-12 |
|
|
Benzoic acid |
C6H5COOH |
6.3×10-5 |
||
|
Carbonic acid |
H2CO3 |
4.2×10-7 |
4.8×10-11 |
|
|
Ferric ion |
Fe(H2O)63+ |
4.0×10-3 |
||
|
Formic acid |
HCOOH |
1.8×10-4 |
||
|
Hydrocyanic acid |
HCN |
4.0×10-10 |
||
|
Hydrofluoric acid |
HF |
7.2×10-4 |
||
|
Hydrogen peroxide |
H2O2 |
2.4×10-12 |
||
|
Hydrosulfuric acid |
H2S |
1.0×10-7 |
1.0×10-19 |
|
|
Hypochlorous acid |
HClO |
3.5×10-8 |
||
|
Nitrous acid |
HNO2 |
4.5×10-4 |
||
|
Oxalic acid |
H2C2O4 |
5.9×10-2 |
6.4×10-5 |
|
|
Phenol |
C6H5OH |
1.0×10-10 |
||
|
Phosphoric acid |
H3PO4 |
7.5×10-3 |
6.2×10-8 |
3.6×10-13 |
|
Sulfuric acid |
H2SO4 |
very large |
1.2×10-2 |
|
|
Sulfurous acid |
H2SO3 |
1.7×10-2 |
6.4×10-8 |
|
|
Zinc ion |
Zn(H2O)42+ |
2.5×10-10 |
||
|
Base |
Formula |
Kb |
||
|---|---|---|---|---|
|
Ammonia |
NH3 |
1.8×10-5 |
||
|
Aniline |
C6H5NH2 |
7.4×10-10 |
||
|
Caffeine |
C8H10N4O2 |
4.1×10-4 |
||
|
Codeine |
C18H21O3N |
8.9×10-7 |
||
|
Diethylamine |
(C2H5)2NH |
6.9×10-4 |
||
|
Dimethylamine |
(CH3)2NH |
5.9×10-4 |
||
|
Ethylamine |
C2H5NH2 |
4.3×10-4 |
||
|
Hydroxylamine |
NH2OH |
9.1×10-9 |
||
|
Isoquinoline |
C9H7N |
2.5×10-9 |
||
|
Methylamine |
CH3NH2 |
4.2×10-4 |
||
|
Morphine |
C17H19O3N |
7.4×10-7 |
||
|
Piperidine |
C5H11N |
1.3×10-3 |
||
|
Pyridine |
C5H5N |
1.5×10-9 |
||
|
Quinoline |
C9H7N |
6.3×10-10 |
||
|
Triethanolamine |
C6H15O3N |
5.8×10-7 |
||
|
Triethylamine |
(C2H5)3N |
5.2×10-4 |
||
|
Trimethylamine |
(CH3)3N |
6.3×10-5 |
||
|
Urea |
N2H4CO |
1.5×10-14 |
Expert Answer
Expert Answer
In: Chemistry
Botanists at the University of Toronto conducted a series of experiments to investigate the feeding habits of baby snow geese. Goslings were deprived of food until their guts were empty, then were allowed to feed for 6 hours on a diet of plants or Purina Duck Chow. For each of 42 feeding trials, the change in the weight of the gosling after 2.5 hours was recorded as a percentage of initial weight. Two other variables recorded were digestion efficiency (measured as a percentage) and amount of acid-detergent fiber in the digestive tract (also measured as a percentage). The data on gosling weight change, digestion efficiency, acid-detergent fiber (all measured as percentages) and diet (plants or duck chow) for 42 feeding trials are saved in the SNOWGEESE file. The botanists were interested in predicting weight change (y) as a function of digestion efficiency and aciddetergent fiber.
Trial Diet WtChange
DigEff ADFiber
1 Plants -6.0 0.0
28.5
2 Plants -5.0 2.5
27.5
3 Plants -4.5 5.0
27.5
4 Plants 0.0 0.0
32.5
5 Plants 2.0 0.0
32.0
6 Plants 3.5 1.0
30.0
7 Plants -2.0 2.5
34.0
8 Plants -2.5 10.0
36.5
9 Plants -3.5 20.0
28.5
10 Plants -2.5 12.5
29.0
11 Plants -3.0 28.0
28.0
12 Plants -8.5 30.0
28.0
13 Plants -3.5 18.0
30.0
14 Plants -3.0 15.0
31.0
15 Plants -2.5 17.5
30.0
16 Plants -0.5 18.0
22.0
17 Plants 0.0 23.0
22.5
18 Plants 1.0 20.0
24.0
19 Plants 2.0 15.0
23.0
20 Plants 6.0 31.0
21.0
21 Plants 2.0 15.0
24.0
22 Plants 2.0 21.0
23.0
23 Plants 2.5 30.0
22.5
24 Plants 2.5 33.0
23.0
25 Plants 0.0 27.5
30.5
26 Plants 0.5 29.0
31.0
27 Plants -1.0 32.5
30.0
28 Plants -3.0 42.0
24.0
29 Plants -2.5 39.0
25.0
30 Plants -2.0 35.5
25.0
31 Plants 0.5 39.0
20.0
32 Plants 5.5 39.0
18.5
33 Plants 7.5 50.0
15.0
34 Chow 0.0 62.5
8.0
35 Chow 0.0 63.0
8.0
36 Chow 2.0 69.0
7.0
37 Chow 8.0 42.5
7.5
38 Chow 9.0 59.0
8.5
39 Chow 12.0 52.5
8.0
40 Chow 8.5 75.0
6.0
41 Chow 10.5 72.5
6.5
42 Chow 14.0 69.0
7.0
a. Write a complete second order model for weight change (y).
In: Statistics and Probability
XML and XSL
I'm trying to style my XML code but it's not implementing the XSL file when I run it even though the file is referenced. Any help?
XML code:
<?xml version="1.0"?>
<?xml-stylesheet href="textbooks.xsl" type="text/xsl"
?>
<textbooks>
<textbook>
<title> Introduction to Design and Analysis of
Algorithms</title>
<authors>
<author>
<firstName>Anany</firstName>
<lastName>Levitin</lastName>
</author>
</authors>
<publisher>
<name>Ed, Pearson</name>
<website>https://www.pearson.com</website>
</publisher>
<Year-of-Publication>2011</Year-of-Publication>
<ISBN>978-0132316811</ISBN>
<book-specific-website></book-specific-website>
<edition>3rd edition</edition>
<cover-type>Paperback</cover-type>
</textbook>
<textbook>
<title>Software Engineering: A Practitioner’s
Approach</title>
<authors>
<author>
<firstName>Roger</firstName>
<lastName>Pressman</lastName>
</author>
</authors>
<publisher>
<name>Ed, McGraw-Hill</name>
<website>www.mheducation.com</website>
</publisher>
<Year-of-Publication>2014</Year-of-Publication>
<ISBN>8126554274</ISBN>
<book-specific-website></book-specific-website>
<edition>8th edition</edition>
<cover-type>Hardcover</cover-type>
</textbook>
<textbook>
<title>Internet and World Wide Web: How to Program with
CD-ROM BK and CD ROM</title>
<authors>
<author>
<firstName>Harvey</firstName>
<lastName>Deitel</lastName>
</author>
</authors>
<publisher>
<name>Prentice Hall,</name>
<website>https://www.amazon.com/Internet-World-Wide-Web-Program/dp/0131450913</website>
</publisher>
<Year-of-Publication>2004</Year-of-Publication>
<ISBN> 0131450913</ISBN>
<book-specific-website></book-specific-website>
<edition>3rd edition</edition>
<cover-type>Hardcover</cover-type>
</textbook>
</textbooks>
XSL:
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/textbooks">
<html>
<body>
<table border="1">
<tr>
<th>Title</th>
<th>Author First Name</th>
<th>Author Last Name</th>
<th>Publisher Name</th>
<th>Publisher website</th>
<th>Year of publication</th>
<th>ISBN</th>
<th>Book Website</th>
<th>Edition</th>
<th>Cover Type</th>
</tr>
<xsl:for-each select="textbook">
<tr>
<td><xsl:value-of
select="title"/></td>
<td><xsl:value-of
select="authors/firstName"/></td>
<td><xsl:value-of
select="authors/lastName"/></td>
<td><xsl:value-of
select="publisher/name"/></td>
<td><xsl:value-of
select="publisher/website"/></td>
<td><xsl:value-of
select="Year-of-publication"/></td>
<td><xsl:value-of
select="ISBN"/></td>
<td><xsl:value-of
select="book-specific-website"/></td>
<td><xsl:value-of
select="edition"/></td>
<td><xsl:value-of
select="cover-type"/></td>
<tr>
<xsl:for-each>
<table>
</body>
</html>
In: Computer Science
|
Zoom Car Corporation (ZCC) plans to purchase approximately 100 vehicles on December 31, 2015, for $1.2 million, plus 10 percent total sales tax. ZCC expects to use the vehicles for 5 years and then sell them for approximately $240,000. ZCC anticipates the following average vehicle use over each year ended December 31: |
| 2016 | 2017 | 2018 | 2019 | 2020 | |
| Miles per year | 10,000 | 15,000 | 4,250 | 4,250 | 2,500 |
|
To finance the purchase, ZCC signed a 5-year promissory note on December 31, 2015, for $1.08 million, with interest paid annually at the market interest rate of 6 percent. The note carries loan covenants that require ZCC to maintain a minimum times interest earned ratio of 3.0 and a minimum fixed asset turnover ratio of 1.0. ZCC forecasts that the company will generate the following sales and preliminary earnings (prior to recording depreciation on the vehicles and interest on the note). (For purposes of this question, ignore income tax.) |
| (in 000s) | 2016 | 2017 | 2018 | 2019 | 2020 | ||||||||||||||||||||||||
| Sales Revenue | $ | 1,200 | $ | 1,700 | $ | 2,000 | $ | 2,100 | $ | 2,200 | |||||||||||||||||||
| Income before Depreciation and Interest Expense | 600 | 800 | 1,000 | 1,100 | 1,200 | ||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||
In: Accounting
Consider the following independent situations, all of which apply to audits of entities for the year ending 31 December 20X7:
(i) Slipway Limited, a listed company, has been experiencing declining sales over the last 2 years. Cost cutting has proved difficult due to the high level of imported machinery used in Slipway’s operations and consequently margins have been falling. While the bankers are presently happy to continue providing Slipway with loan facilities, they do expect to see improved results in the next financial report. Articles about Slipway’s expected financial results appearing in recent press reports all had quite a pessimistic tone.
(ii) Discount Foods Limited is a large supermarket chain with offices in all capital cities around Australia. Until 30 June 20X7 data processing relating to payroll transactions will be carried out in each capital city by an independent computer service bureau. \
(iii) Getaway Pty. Limited is a long established firm which has been operating a boutique hotel in the Blue Mountains for over 20 years. During this time, it has adopted a conservative business strategy that has seen it produce adequate, though slightly unimpressive, results. A new CEO has been appointed to run the firm from 1 September 20X7. He has already released his plans for renovating the hotel, despite not officially serving as CEO yet. You have also heard him discuss the implementation of a new marketing strategy to boost occupancy rates.
(iv) Angora Pty. Limited is a small primary producer specializing in the production of angora wool. Angora’s recent display at a trade show has seen orders flood in from overseas buyers. The accountant, Michael, has done his best to satisfy the orders as quickly as possible while maintaining the appropriate (foreign currency) accounting records. However, from some of the questions he has been asking you, you suspect he is out of his depth.
(v) Kings Pty. Limited has been manufacturing uniforms for the Australian market for the last 40 years. The government’s recent tariff reduction policy has placed Kings in direct competition with cheaper uniforms manufactured overseas. In a bid to retain market share, Kings has been selling part of its school uniform range at less than cost. However, overall profit figures remain buoyant.
Required: For each of the above independent situations describe the overall impact on audit risk and identify the specific component(s) of audit risk affected.
In: Accounting
Task: For each of the scenarios below, choose the strategy that you believe should be pursued to achieve the best results, and provide a brief explanation of why you believe this is the best strategy.
Choose from theses 5 Generic Strategies : 1. Low-Cost Provider Strategy 2. Broad Differentiation Strategy 3. Focused Low-Cost Strategy 4. Focused Differentiation Strategy 5. Best-Cost Provider Strategy
Scenarios: 1. A new waterfront development project is beginning in a medium-size city. This project will include moderate to higher-end shopping, restaurants, and hotels. Some of these businesses include: Pottery Barn, Ann Taylor, an Apple Store, Sasha’s Dress Boutique, Apostrophe, Bose, Calvin Klein, Cheesecake Factory, Capital Grille, Maggiano’s, the Marriott, and the Westin. The spaces will include a mixture of national chains, and local businesses. The project and the city have been highlighted in national papers for the expected success of the project and renewed attraction to the city. The Sully Hospitality group is determining if they want to open a boutique hotel in this area. What strategy should Sully adopt to develop the type of boutique hotel would best- fit this project? Provide a brief explanation.
2. A new shopping center is being developed – the main anchors are Wal-Mart and Home Depot. The other parcels will include smaller establishments of fast-food and other convenience category businesses. McDonald’s is interested in this project but has to determine how they would approach this location. The options are: 1. Put a McDonald’s Express inside the Wal-Mart 2. Purchase an out-parcel at the front of the project with high traffic volume and build a traditional McDonald’s 3. Purchase an out-parcel at the front of the project with high traffic volume and build a McCafe Which generic strategy should be McDonald’s use to guide this decision? Based on the generic strategy that you believe is most appropriate for this scenario, which option should McDonald’s choose? Provide a brief explanation.
3. The airline industry has seen various players attempt all of the generic strategies. Given the current state of the airline industry and the main surviving airlines, if a company wanted to get into this industry right now, which strategy would promote the best chances for success? Provide a brief explanation.
4. The top five selling brands of tablets in the world are: 5. Acer, 4. Dell, 3. Sony Vaio, 2. Lenovo, and 1. Apple. A new start-up company wants to break into the tablet market; what generic strategy should they adopt? Provide a brief explanation.
In: Operations Management
2. Zulkifli, computer centre manager, reports that this computer system experienced three-component failure during the past 100 days. What is the probability of no failure?
Select one:
a. 0.004
b. 0.97
c. 0.996
d. 0.03
4. Suppose that women obtain 54% of all bachelor’s degrees in a particular country and that 20% of all bachelor’s degrees in business. Also, 8% of all bachelor’s degrees go to women majoring in business. The events “the bachelor’s degree holder is a woman” and the bachelor’s degree is in business” are _____________.
Select one:
A. statistically correlated
B. statistically independent
C. statistically not independent
D. statistically dependent
5. The variance for the data values “ 87, 85, 80, 78, 86, 90” is :
Select one:
A. 12
B. 4.1
C. 85
D. 17.1
6.
A company is hiring candidates for 4 key positions in the management of its new office. 5 candidates are from Malaysia and 3 are from United States. Assuming that every combination of Malaysian and American is equally likely to be selected, what is the probability that at least 1 American will be selected?
Select one:
A. 5/14
B. 1/14
C. 4/14
D. 13/14
7.
A researcher wants to investigate if there is a difference in the rates of hotel room in two cities. A sample of 50 were selected from each city, the average hotel room in the first city is RM88.42 and in the second city is RM80.61 and the standard deviation are RM5.62 and RM4. The null hypothesis for the difference between the means is
Select one:
A. µ1 - µ2 ≤ 0
B. µ1 - µ2 ≥ 0
C. µ1 - µ2 ≠ 0
D. µ1 - µ2 = 0
8.
The intercept of the regression equation for the following data:
| X | 43 | 48 | 56 | 61 | 67 | 55 |
|---|---|---|---|---|---|---|
| Y | 128 | 120 | 135 | 143 | 141 | 130 |
Select one:
A. 87.3922
B. 85.3421
C. 89.3421
D. 83.3421
9.
The number of credits in business courses ten job applicants had is shown here. “ 2, 3, 5, 6, 8, 10, 12, 15, 18, 20”
What value corresponds to the 60th percentile?
Select one:
A. 12
B. 8
C. 11
D. 10
10.
Zulkifli, computer centre manager, reports that this computer system experienced three-component failure during the past 100 days. What is the probability of at least two failures in a 3-day period?
Select one:
A. 0.004
B. 0.91
C. 0.03
D. 0.08
In: Statistics and Probability
Summarize in your own words the article below (300 words)
Trivago Ramps Up Finance Team After Material Weakness By Nina Trentmann Feb 8, 2018
Rolf Schroemgens, co-founder and chief executive officer of Trivago, center, cheers with employees during the company's initial public offering (IPO) in New York, U.S., Dec. 16, 2016. Rolf Schroemgens, co-founder and chief executive officer of Trivago, center, cheers with employees during the company's initial public offering (IPO) in New York, U.S., Dec. 16, 2016. PHOTO: BLOOMBERG NEWS Hotel-search company Trivago N.V. has expanded its financial reporting team as it prepares to file its next annual report, said Chief Financial Officer Axel Hefer. The German company, which listed on the Nasdaq in late 2016, disclosed that it found a material weakness in internal controls over financial reporting in the lead up to its initial public offering. At the time, Trivago was heavily reliant on outside consultants and advisors to meet U.S. reporting requirements. “We now have significantly more people that are experts on U.S. Generally Accepted Accounting Principles,” CFO Axel Hefer Wednesday said in an interview with CFO Journal. The expanded staff have helped overhaul Trivago’s reporting process, which is now “completely different,” Mr. Hefer said. The hotel-comparison company is still assessing whether the circumstances that resulted in the material weakness have been mitigated, Mr. Hefer said. Trivago plans on filing its annual report in the next couple of months, he added. The Securities and Exchange Commission requires foreign issuers that have listed equity shares on U.S. exchanges to submit an annual report within six months after the end of the company’s fiscal year. Mr. Hefer did not share how many people have been added to the company’s reporting team or the number of employees in the finance and accounting department. Mr. Hefer last year said the company would phase out reliance on external accounting help. Düsseldorf-based Trivago currently employs over 1,400 people. Trivago Wednesday swung to a wider-than-expected quarterly loss amid reduced spending from advertisers. The company reported a fourth-quarter net loss of €9.6 million ($11.8 million), compared with net income of €0.1 million for the same period last year.
In: Accounting
Discussed persuasive messages and how they are meant to convince an audience to act or change beliefs.The following letter was written from a program chair to a well-known, and very hard to get, gourmet chef in Beverly Hills. The letter is meant to request for the chef to present to a local restaurant association but it is not very persuasive or professional.
Analyze the letter to determine how it could be more persuasive and professional. Consider all the components of effective persuasion discussed in the lesson. Answer the following questions.
What is your initial response to the the way the chair wrote the letter to the chef?
What are at least five weaknesses you identify in the letter, based on concepts learned in the lesson?
In what way could each of the components of AIDA (attention, interest, desire, action) be more effectively implemented in the letter? How would you specifically improve the letter using each component?
--------------------------------------
Dear Ms. Mazzetti:
We know you are a very busy hospitality professional as chef at the Beverly Hills Hotel, but we would like you to make a presentation to the San Diego chapter of the National Restaurant Association. I was asked to write you since I am program chair.
I heard that you made a really good presentation at your local chapter in Los Angeles recently. I think you gave a talk called “Avoiding the Seven Cardinal Sins in Food Service” or something like that. Whatever it was, I'm sure we would like to hear the same or a similar presentation. All restaurant operators are interested in doing what we can to avoid potential problems involving discrimination, safety at work, how we hire people, etc. As you well know, operating a fast-paced restaurant is frustrating—even on a good day. We are all in a gigantic rush from opening the door early in the morning to shutting it again after the last customer has gone. It's a rat race and easy to fall into the trap with food service faults that push a big operation into trouble.
Enclosed please find a list of questions that our members listed. We would like you to talk in the neighborhood of 45 minutes. Our June 10 meeting will be in the Oak Room of the Westin St. Francis Hotel in San Diego and dinner begins at 7 p.m.
How can we get you to come to San Diego? We can only offer you an honorarium of $200, but we would pay for any travel expenses. You can expect a large crowd of restaurateurs who are known for hooting and hollering when they hear good stuff! As you can see, we are a rather informal group. Hope you can join us!
Sincerely,
In: Operations Management
Consider the following situation as if you were Ian.
Ian was a senior analyst at a major hotel company. Although Ian worked mostly in corporate headquarters, he would occasionally travel to the field where he met with front-line employees and learned what was on their minds.
On a trip to Portland, Ian had the chance to speak with two people working at the front desk about what it was like to work at the hotel. Daniel, the younger of the two had joined the staff recently; Ellen, the other employee (and Daniel’s supervisor), had been with the company for almost 15 years. Both employees seemed particularly interested in talking with Ian because they rarely got a chance to talk directly to anyone from headquarters.
As the three discussed changes in the hospitality industry, Ellen and Daniel complained about their company’s aggressive cost control initiatives, spearheaded by the charismatic but frugal CEO, whose policies were occasionally unpopular. After a few more minutes of conversation, Ellen casually said, “The CEO is so tight with a buck, I wonder if he is Jewish.”
As a Jewish person, Ian did not know how to react. He had never actually experienced anything like this before, especially in a professional setting. Ian’s instinct was not to be combative or hostile, but he felt a bit like a deer caught in the headlights. Daniel looked a little surprised at his supervisor’s remark, but, laughing, he quickly changed the subject. Smiling, Ian made an excuse to end or discussion and walk away.
The next day Ian woke up still bothered by Ellen’s remark. While checking out, he saw Daniel at the front desk. Ian mentioned to him that he may want to tell his supervisor to watch her remarks about other peoples’ ethnicity, to which Daniel replied, “I know what you mean because I am Puerto Rican, but I think that she meant it as a joke.” Ian could see that Daniel just wanted to smooth the issue over.
On the ride to the airport, Ian kept thinking about what he might do. Should he report Ellen to Human Resources? The company had a process in place for such matters, but he was worried. Ian did not know who he was dealing with; maybe Ellen would retaliate if he said something, especially since she would know who filed the complaint. Plus, Ian was not sure what the consequences would be – he didn’t want to get her fired. Ian only wanted Ellen to know how offensive the comments were.
As a team, consider what steps Ian should take.
What are the concerns facing Ian?
In: Operations Management