In 1814, Sir Humphrey Davy and Michael Faraday collected samples of a flammable gas, A,from the ground near Florence in Italy.They analysed A which they found to be a hydrocarbon. Further experiments were thencarried out to determine the molecular formula of A.

(a) What is meant by the term molecular formula? ………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………..[2]

Davy and Faraday deduced the formula of A by exploding it with an excess of oxygen and analysing the products of combustion.

(b) Complete and balance the following equation for the complete combustion of ahydrocarbon with the formula CxHy

.CxHy + (x + y4)O2 ………………………….. + …………………………..[2]

(c) When 10 cm3 of A was mixed at room temperature with 50 cm3 of oxygen (an excess)and exploded, 40 cm3 of gas remained after cooling the apparatus to room temperatureand pressure.

When this 40 cm3 of gas was shaken with an excess of aqueous potassium hydroxide,KOH, 30 cm3 of gas still remained.

(i) What is the identity of the 30 cm3 of gas that remained at the end of the experiment? ……………………………………………

(ii) The combustion of A produced a gas that reacted with the KOH (aq). What is the identity of this gas? ……………………………………………

(iii) What volume of the gas you have identified in (ii) was produced by the combustion of A? ………………………….cm3

(iv) What volume of oxygen was used up in the combustion of A? ………………………….cm3 [4]

(d) Use your equation in (b) and your results from (c)(iii) and (c)(iv) to calculate the molecular formula of A.

Show all of your working.

 

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In 1736, a famous Swiss mathematician Leonhard Euler (1707 – 1783) started the work in the area of Graph Theory through his successful attempt in solving the problem of “Seven Bridges of Konigsberg.” Graph Theory solved many problems in multiple fields (Chinese Postman Problem, DNA fragment assembly, and aircraft scheduling.) In Chemistry, Graph Theory is used in the study of molecules, construction of bonds in chemistry, and the study of atoms. In Biology, Graph Theory is used in the study of breeding patterns or tracking the spread of disease.

Write a three to five (3-5) page paper in which you:

1. Choose two (2) applications for graph theory within your area of specialization (Networking, Security, Databases, Data Mining, Programming, etc.).
2. Examine how these applications are being used in your specialization.
3. Determine how graph theory has advanced the knowledge in your area of specialization.
4. Conclude how you will apply graph theory in your area of specialization.
5. Use at least three (3) quality academic resources in this assignment. Note: Wikipedia and other Websites do not quality as academic resources.

Your assignment must follow these formatting requirements:

• Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. In-text citations must be used appropriately and have a corresponding reference entry. Each reference must have at least one in-text citation. Check with your professor for any additional instructions.
• Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.

The specific course learning outcomes associated with this assignment are:

• Model relationships with graphs, functions, and trees.
• Use technology and information resources to research issues in discrete math. 
• Write clearly and concisely about discrete math using proper writing mechanics

 

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In 150 words please explain:How does a company’s culture affect productivity? Does your management care about the attitude and encourage productivity amongst its employees? What do they do?References…HR.com, 2000. How Culture Affects Productivity. Retrieved fromhttp://www.hr.com/SITEFORUM?&t=/Default/gateway&i=1116423256281&b=1116423256281&application=story&active=no&ParentID=1119278069586&StoryID=1119642724250&xref=http%253A//www.google.com/search%253Fhl%253Den%2526source%253Dhp%2526q%253Dhow+using+technology+to+perform+human+resources+functions+affects+company+culture%2526aq%253D0m%2526oq%253Dusing+technology+to+perform+human+resources+functions%2526aqi%253Dg-m2 on January 9, 2010.

 

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In 1200-1500 words, please address the following prompt: Which theory of free will (hard determinist, compatibilist, libertarian) do you find most convincing? Or, like William James and the Existentialists, do you find that we need to believe in freedom for practical purposes of guilt and responsibility? Be sure to engage at least two figures from our textbook. 

No outside sources beyond the textbook are needed, but please be sure to cite any source you use in a works cited or in footnotes, including the textbook (remember to cite by chapter and section, e.g. Chaffee 4.2, since we don’t have page numbers in the online text). Excellent papers will have grammatical and stylistic quality, factual accuracy, a clear thesis and evidence for one’s claim, and citations. Each paper counts for 10% of the final grade.

PAPER IS ALREADY DONE I JUST NEED 500 WORDS ADDED!!!!!!!!!!!

 

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In 1200-1500 words MLA format, please address the following prompt: Which theory of free will (hard determinist, compatibilist, libertarian) do you find most convincing? Or, like William James and the Existentialists, do you find that we need to believe in freedom for practical purposes of guilt and responsibility? Be sure to engage at least two figures from our textbook (REVEL)

 

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