Monday, September 30, 2019

MBA Future

I have a strong interest in pursuing a master of business administration (MBA) degree, as I believe it will be beneficial in helping me achieve my short term and long-term goals. It will make me competent enough to fit in the wider job market. This will come with increased income earning which is a key to good life. Good life or better living is everyone’s dream while advancing in one’s career and being no exceptional I want to pursue it for that cause. I have a wealth of experience from my educational background. I have also gained work experience from different positions over the years the degree will improve my efficiency when combined with the qualities I already have. I intend to take a major in marketing that I have been specializing in and a minor in entrepreneurship. I took a B.A Business Administration with a concentration in marketing. I graduated with a 3.5 in major and outstanding performance rendered me honors. Currently I am working within media advertising that comprises of television and radio. Pursuing this degree will equip me with the necessary expertise to be in the capacity of handling of handling issues appropriately especially at senior positions. Since my long term goal is to be president of a company. (http://www.unhmba.org) My other interest is researching brand management and the degree program will enrich me in skills needed in this area. I will be better placed with the ground information and the theoretical skills from the class. I have demonstrable ability to perform excellently in business classes and given the opportunity I would be outstanding in business school. My main interest is in the entertainment industry of which I have a solid background on. In 2001 I worked for a small marketing and event-planning firm that has now advanced. My 3 years experience when working with Sony-BMG as an assistance field marketing representative gave me exposure to the world of marketing and is a plus to my skills. I am proud to be part of the team that saw eWork Inc company grow from a small marketing and research to what the company is now. I was very influential especially on the Southeast region. I handle more than 30 people in my current position the skills I would get will improve my leadership skills. Working in my current position entails conducting movie surveys as well as holding premiers for upcoming movies. I am part owner of a t-shirt company that deals with presidential candidate. This entails strategic. Marketing plans to succeed and hence calls for skills or tact. To gain maximum exposure we plan to participate in the famous Oprah Winfrey show. My long-term goal of being a president of a T.V production company and being responsible for the marketing and company sponsorships will be well realized after attaining skills in the MBA program. (http://www.unhmba.org) I have constantly been involved in volunteering activities like in a mentor program that helps risk teens, AID Atlanta, hands on Atlanta and MS walk where I was among the top. Taking classes in the spring will enable me to be well prepared in joining the business school. My main reasons for choosing University of D and Wayne state is that its location will reduce the distance barriers from my fiancà © who has just moved to Detroit. They offer attractive placement rates and the small classes will offer a favorable or conducive environment for learning. It is also in a place where jobs will be easily accessible. Reference: United Network of help with Masters of Business Administration programs.2007. Retrieved on 31st October 2007 from http://www.unhmba.org   

Sunday, September 29, 2019

Corrections Accreditation and Privatization Essay

â€Å"Corrections accreditation is intended to improve facility operations through adherence to clear standards relevant to all areas/operations of the facility, including safety, security, order, inmate care, programs, justice, and administration† (â€Å"American Correctional Association†, n.d.). Going through these types of processes can be very beneficial to a corrections officer’s development. Going through these procedures, the experience will assist them in keeping and maintaining a professional outlook in any situation. Correctional facilities are equipped with officers who are trained to not only keep everybody safe in the environment, but to maintain security and order at all times. These officers need to be professional just as anybody else would in any position within a job. Their development lies in improving their thought process and their skill at the job when necessary and changes occur almost every day. Industry leaders can make good changes when hiring corrections officers. A good way simply being when hiring staff, there is no tolerance for illegal activities. Making improvements in their training programs, if need be. In addition to those, upgrading the facility with better measures as far as security. All of the things covered when being audited can make a difference to planning for better future outcomes. Prisons for some time have been dealing with not only major financial situations in local, state, and federal governments, but overcrowding as well is a huge concern. â€Å"Privatization as it refers to prisons is to both the takeover of existing public facilities by private operators, and to the building and operation of new and additional prisons by for-profit prison companies† (Cheung, 2004). Due to the rising in state and federal population it is a concern to consider the all-around costs of incarceration, operation and management. It seems as though state and federal prisons have more of a professional practice, whereas a private institution might suffer because of demands, rising costs, conditions (depending on location), etc

Saturday, September 28, 2019

Principles of Good Writing by L.A. Hill

PRINCIPLES OF GOOD WRITING — L. A. HILL OBJECTIVE: This unit on L. A. HILL’S on ‘Principles of Good Writing’, is actually designed to add to your writing ability. After going through this unit, you will be able to: * Know about informative essay * Development logical and successful writing * Know the importance of newspaper and some good magazines. * Develop a taste for other aspects of linguistics INTRODUCTION TO THE ESSAYIST: Lesile Alexander Hill, a renowned personality among essayist, was born in the year 1918 in Greece and was educated at Cambridge university. He worked for the British council in Greece. Iran, Indonesia and India. Later he worked as adviser for the oxford university press, oxford, England, on the teaching of English as a second language His works include many thought provoking essays, comprehension and epitomisation for overseas students. Recent trends in educational practice, a guide to correct English, and teaching English as a second language are some very important to mention. Hill’s interest in linguistics extends to all human behavior and similarities and variations between different cultures. Hill’s good command over prose language is revealed clearly in this formal-tone essay â€Å"The Principles of Good Writing†. In this essay, Hill has brought to light the rules and regulations to be observed in shaping and sharpening one’s writing skills. He has given valuable tips regarding the secret of successful writing. The clarity of thought and expression, the logical development of the theme, the illustrative examples and the appropriate use of vocabulary, make it a wonderful piece of work. Summary: Hill, in first person narration, gives a piece of valuable advice to all the aspirants who want to be proficient in English-written and oral skills. In the opening passage, he clearly says that good writing demands good and ogical thinking. Good thinking, is not developed instantly, rather it emerges with practical experience and proper training. Initially thinking in the direction of logic and reason seems difficult because one’s mind may not be acquainted with this. But with time it will happen so and it will be reflected in one’s writing. Next to give expression to thought apt voc abulary is required. Depending on the form and tone of your work, vocabulary should be either formal or slang. To improve vocabulary you need to read widely different sorts of writing. A dictionary is of great help in this field. Sincere and diligent practice in writing is first concrete move towards a successful writing. Waiting for an inspiration will prove a hinderance towards your goal, so avoid it. Hill further suggests that one should be alive to all the happenings and pay heed to it. Even an ordinary talk heard in the street can be taken as a subject to start writing. It is required to note every new word or expression that one comes across while reading also. The writer also feels that love of mankind is an essential trait to see other state of minds, feel it intensely, and write it effectively. And, to be a good writer the readers must be kept in mind their interest and taste should be borre in mind always. ‘Impersonality of art’ should be maintained by a poet or writer while expressing emotions or feelings. The subject that is chosen for writing should be personal experience. ‘Words are body, sentences in structure, and the expression, the soul’. So apt words, correct sentence structure, and good theme, will together constitute a good writing. Introduction would be interesting and eye-catching and conclusion should not end abruptly. Finally, a writer is expected to write with zeal and true involvement- only then reader’s imagination can be kindled Critical appreciation Hill’s command over English language needs true appreciation, only those will be able to appreciate who, themselves have appropriate knowledge of this language. His epigrammatic style and lucidity of expression is remarkable; â€Å"Through this essay all that he wanted to do is teach the rules and regulations of good writing, and throughout the essay we find such tips. The formal tone is maintained throughout the essay. All the paragraphs are neatly linked and introduction is apt for the subject choosen. He himself avoided very carefully; the use of slang, jargon, hackneyed expressions, rhetorical, circumlocution, verbiage, and mingling of styles- formal and too much informal or slang. The title of the essay is very appropriate as the aim of the essayist is to teach principles of good writing by the means of various suggestions mentioned in the essay. Do’s and don’ts in the field of learning writing good English, is highly suggestive. The lucidity of thought and expression, neat structure with logical development of idea, apt examples and simple vocabulary of the essay, make it a remarkable piece of work. Summing up Hill is a writer of promising skill. His abilities are fully reflected in this thought provoking essay. ‘Principles of Good Writing’. In this essay he suggests wide reading, using a dictionary, note-making, frequent writing, maintaining humanistic and rational attitude, as essential traits for developing logical reasoning and good writing. He also suggests to avoid artificiality, avoiding second hand experience, avoiding use of jargon, rhetorical, slang along with formal, unnecessary verbose, and too much of personal element in writing. Reader-writer relationship is aptly emphasized. The essay on the whole is of great significance.

Friday, September 27, 2019

In what ways might the state be considered to be 'gendered' Essay

In what ways might the state be considered to be 'gendered' - Essay Example The status of women in this generally patriarchal world is a discussion that has passed, at least two centuries. It has been a sociologically proven fact that â€Å"historical construction of the state [†¦] represents a gendered masculine model†. Women who â€Å"constitute half the world’s population, perform nearly two-thirds of its work hours, receive one-tenth of the world’s income, and own less than one-hundredth of the world’s property† (cited in Bubeck, 1995: 2). It is this injustice and inequality that prompts discussion on the possibility of gendering the state. In different countries, women as individuals and as groups have been engaged in attempts to gender the state that govern them. Men who have internalized gender politics have also been partners in such attempts. To assess whether and to what extent a state is gendered, is to be able to scrutinize the actions, attitudes and policies of the state. And this assessment has to be base d on the notion that â€Å"any meaningful conception of equality must provide all women with political, social and economic rights† (Cornell, 1993: 162). From this reasoning and the discussion made above, it can be seen that just like there is no gendering of the state possible without the gendering of the society, no political change is possible without corresponding social and economic changes. But still, for the sake of convenience while making a gendering intervention, the state can be compartmentalized into different segments. like executive, legislature, media, informal political sphere, public space, etc. Gendering the processes of state The communist, capitalist and democratic forms of state, have been criticized by feminist scholars, for being hierarchical when it comes to gender relations (Abu-Laban, 2009: 7). The gender power relations within each of this system of rule were found to be typically an extension of family and its gender relations (Abu-Laban, 2009: 8). Some feminist scholars (cited in Abu-Laban, 2009) have debated whether nationalism is â€Å"progressive or reactionary† in terms of a gender perspective (12). The duality and contradiction involved with the role of women as citizens and as inferior members in a family has to be addressed if the gendering process of the state is to gain stability by finding roots in the society (Abu-Laban, 2009: 13). True (2003) has drawn attention to the need of â€Å"gendering socialist state† by which it becomes clear that even a state establishment that addresses certain inequalities like class and race cannot be considered as gender-sensitive (28). In such a scenario, the gendering of state is viewed as to include: Election [of women] to legislatures, the appointment of women to public office as ministers and bureaucrats, the presence of women’s policy agencies, and the potential for these women and agencies to promote women-friendly policy outcomes (McBride and

Thursday, September 26, 2019

Collective and Distributive Power of the United States Assignment

Collective and Distributive Power of the United States - Assignment Example America enjoys a power in the international system that is indispensable as the state wishes to take their leadership responsibilities as well as share the burdens of others. Thus the country of America enjoys both collective as well as distributive powers. (Simone, 2000, p 39) The United States of America play an important leadership role in the policies regarding the international trade. Thus the paper aims at evaluating the role of the country in international trade. Trade relations existed among economies from the period of Mercantilism in the world economy. The large economies of the world have always been dominating the small economies in their economic interaction in terms of trade. One main instance that reflects the dominance of the United States in the dealings of international Trade was the signing of the conditional MFN clause in the year 1778 between the United States and France. The equality of the privileges enjoyed in the market was to be ensured by the treaty. However, the clause held by the US was the main factor responsible for destroying the equality in the market. (Trebilcock & Howse, 2005, p 50) In the period following the Second World War and the establishment of universal balance in the economies of the country, that is, after such a huge disturbance, there had been a significant increase in international trades. In order to conduct the liberalization of the world economies in a systematic way, a certain agreement was planned to be signed between the nations participating in international trade. This gave rise to the General Agreement on Tariffs and Trades, which was followed by the establishment of a general governing body for monitoring the international trade, namely the World Trade Organization. The main aim motive behind the formation of GATT was to avoid the difficulties of the policies of imports and exports of individual countries prevalent before the Second World War. An overall policy for all member countries participating in international  trade was the main aim.  

The capital structure decision and the cost of capital Research Paper

The capital structure decision and the cost of capital - Research Paper Example Thus a lesser D/E ratio would be recommended for a typical company. Therefore, D/E ratio = aggregate liabilities/ shareholders’ equity A very high D/E ratio would translate to the fact that the company has been applying debt in its growth to a high extent. The resultant impact is a scenario of very volatile earnings by the company due to the marginal interest expense. If a company applied a lot of debt financing to finance additional business operations, this would result to more generation of revenues and if the revenues outdo the costs, then the shareholders would be left better of since they would earn more dividends. But it is essential to note that this is if, and only if, the earnings surpass the cost of debt. D/E ratios may also vary depending upon the industry the company is operating. For instance, a company that is highly capital intensive would have a higher D/E ratio than those who operate computer software operations. (Gibson, 2008 p260) MATTEL Mattel is a premier company for toys. It designs, manufactures as well as markets toys. The Company’s believes that PLAY is vital for the development of Children besides other benefits. These include the development of imagination and creativity, good healthy interaction and the construction of strong learning foundation among others. Most of Mattel’s business is done online. ... They say their business is global and thus, internationalized and have subsidiaries besides the parent company which is registered in the US. (mattel.com, 2011) Mattel’s gross sales are formed up as follows: 30% in Latin America, 52% in Europe, 11% in Asia Pacific and 7% in others areas. They manufacture toy products themselves as well as outsourcing from other companies. Their main manufacturing facilities are set up in Indonesia, China, Malaysia, Thailand and Mexico. Their business is also seasonal where they experience peaks during the traditionally set holiday seasons. In fact the biggest sale revenues are experienced in the 3rd and 4th quarters of their fiscal year. The risks facing Mattel are only based on non-satisfaction of clients since its business depends almost entirely on Toy business. Shifts in demand would, therefore, impact adversely on their business. Seasonality as mentioned earlier is also another risk as well as inaccurate anticipation of the trends and cul ture. Though no market beta is given on this website, it is stated in their 2010 financial reports that the business is highly dependent on market behavior, where it faces to a large extent both foreign and local market rates of interest variances that form up market financial risk. (files.shareholder.com, 2011) Mattel Company had a market beta of 1.0 as reported by smartmoney.com website as of 2011. (smartmoney.com, 2011) Due to the high levels of financial risks that Mattel as a company faces and its doing business world wide, usage of debt as a source of capital would have a very huge impact on the capitalization of the company. Therefore, the recommendation is

Wednesday, September 25, 2019

A Strategy for Success of Proctor & Gamble Assignment

A Strategy for Success of Proctor & Gamble - Assignment Example They are also informed of the parameters of the problem to be solved in order to solve it appropriately. Engaging the teams in the prior activities is vital for the entire process, as it ensures that teams are handling a problem they fully understand (Hayes 36). On the contrary, the more time the team spends on the Clay Street, the more the cost to the company. Â  The key objective of the teams that visit Clay Street is to find solutions to problems facing companies. Generation of innovative products is vital for every company that seeks market advantage. P & G have realized this potential, and send teams to Clay Street develop ideas that will ensure they remain top on the market. The time the team takes at Clay Street determines the relevance of processes the team is involved. Enough time is required to ensure that the desired results for all processes are met (Hayes 24). Â  It is clear that selecting a competitive team and sending it to a separate location to ponder over a certain problem must produce positive results. It is advisable for all companies to be sending out teams to meditate upon their products in the market and the way they can improve. Facilitators would be equally important because they help the teams familiarize with the parameters of the problem (Hayes 32). The type of training with periodical training on the market trends is preferable.

Tuesday, September 24, 2019

UK National Health Service Assignment Example | Topics and Well Written Essays - 1750 words

UK National Health Service - Assignment Example Since then, the government is engaged in expanding the scope of health and social care policy  as  an attempt to become the best welfare state.   First published in 1942, Social Insurance and Allied  service, which was widely known as Beveridge Report, was the work of Sir William Beveridge. The aim was to take the state towards  the welfare  state. In 1942, this influential report was completed and published.   He described various maladies such as disease, idleness, ignorance, squalor as the giant evils and proposed wide-spread reforms in each area (Beveridge, 1969). This report also became the basis for the scheme for free school meals and vaccination against diphtheria for the children who were studying the school. As the medical profession criticized the separation of NHS in 3 parts, local health authorities, general practice, and hospitals, the unification of these services were approved with Enoch Powell’s Hospital Plan. The aim of this report was to do  an investigation  in prevalent inequality in healthcare services in  the country  despite the founding of NHS and was commissioned by  then-secretary of  state, David  Ennuals. This plan brought about  the biggest  change in healthcare in  the country  with increased funding and reform to eliminate geographical inequalities, extension in patient choice and improvement in service  standards.   The concept of welfare state includes the key role of the state in promotion as well as protection of its citizens which includes health, social and economic being. The Poor laws implemented by Royal commission in 1832 anticipated the modern UK welfare state. They were ceased when it was found that they were abused by people. As  the labor party  became  very popular with the people, the Liberal party initiated Liberal  welfare  reforms and laid the foundation of the modern state.  Gradually, they were extended  to  all fields during next 40 years.

Monday, September 23, 2019

Introduction to Business Enterprise Essay Example | Topics and Well Written Essays - 750 words

Introduction to Business Enterprise - Essay Example If the resources of the company are used for personal work whether nonprofit or profit making, then out and out it will be considered as nothing less than crime. First of all if they are used for personal benefit then it is resulting in individual benefit at the cost of the company that has nothing to do with the company profit. Again even it is used for nonprofit making purpose, the company is in no way is here to do charity in a competitive world. Daryl’s case can easily be analyzed at the light of the above discussion. The first offense that Daryl commits is that he is using company’s working hours to write a book for himself. The amount that he will eventually receive from the publisher after the book gets published and the successive royalties would be his sole property. Not a single penny earned in this manner will go to the company’s account. Even if it is considered that the book is written for aesthetic joy only and it has nothing to do with money, the a ction should be equally rebuked. The company pays him to complete the work that has been vested upon him, not to get indulge in creative joy that has nothing to do with the prosperity of the company. Daryl has even asked his subordinates to help him finishing the book. This is purely taking advantage of one’s higher position and a mark of unhealthy intra organization hierarchy. First of all the employees working under Daryl has no professional bindings to him so that they have to extend their helping hands towards Daryl that concerns his only his personal benefit. Again, the employees might have other works to do that are related directly with the company that will surely get neglected if they indulge themselves working with Daryl’s book. Daryl’s actions are purely unethical based on this. He should never have asked personal help to his fellow workers and even if he has to, he should have done that in their spare time. In Daryl’s shoe one should never min gle personal work with the official one especially using company resources and time if that only means for personal benefit. At most he can approach his immediate superior requesting his favor that whether he can write a book of his own if he gets some additional time left out of his official business. A discussion with co-workers regarding their spare time, work allocation and whether they would be interested to offer their help towards writing a book would also help to overcome any misunderstanding and will also earn respect for Daryl among his fellow workers. Once everyone starts considering Daryl as one of them, cooperation and coordination will follow suit even before one asks for them and will definitely lead to individual as well as social

Sunday, September 22, 2019

The Islamic Civilization Essay Example for Free

The Islamic Civilization Essay During the post classical era, we find the world evolving by expansion and intense communication along many regions. With expansion and communication, trade and culture travels such as West Africa being introduced to Islam. Moving into western African, between 1000ce-1450ce, the introduction of Islam has brought a great increase in slave trade and rose literacy rates, creating literate officials in state administration. However, no rigorous conversion was made, some traditional practices remained. The increase of slaves was obtained through conquest and the impact of Islam created religious power to officials in state administration due to appeal of legitimacy of rule. However distant ruling centers would be least likely affected by Islam. West Africa’s economy was greatly stimulated by the appearance of Islam. They were able to trade, not only across the Sahara, as they had in Europe and the Middle East. Prior to the influence of Islam, West Africa interacted through regional trade and with help from Tran Saharan route they were able to connect to North Africa. With the Muslims, the bringing of Islam enlarged the amount of concubines, sex slaves, in West Africa. Although concubines were not Muslim, because Muslims believed that they couldn’t enslave their own people. We see that within Muslim ancestry they’ve always been nomadic, always relocating in spite of gaining new resources. The establishment of Islam led to the development of 1st regular trade across the Sahara. The impact of Islam turned Africa into a focal point of trade, linking Africa to Eurasian world trade. The Islamic Civilization gave rise to many centers of culture and science, producing notable doctors, nurses, scientists, astronomers, mathematicians, and philosophers. Monarchies and their courts now have literate officials to assist in state administration. A quantity of West African cities had become centers of Islamic intellectual life, increasing literacy rates and legitimacy in state administration. Muslims did not seek to convert West Africans; they did practice their religion while traveling. As time passed Muslim traders were accompanied by Clerics and scholars, these men interacted with local rulers on matter relating to trade, security, and governing. Until the leader of the kingdom converted, with full support would influence citizens to convert to Islam. Although Islam made a very large impression on West Africa, no through religious transformation was made. Being the fact they were rural there was no interaction with Muslims or deepening influence of Islam. Practice such as permission for women to appear in public almost naked, being able to roam freely with unrelated men and the sparkling of dust on one’s head as a sign of respect. Other traditions also remained even though some converted to Islam due to the monotheistic belief related so closely to their belief in one creator God. While in West Africa, Islam rose slave trade along trade routes, increased literacy rates leading to conversion of literate state officials. Albeit, no religious transformation was made. Being the fact that Muslims were nomadic by ancestry they sought to carry out concubines in the slave trade. They believed that it was wrong to enslave their own people so they looked to Africans, their resource, to help them. In effect to the introduction of Islam, many aspects were imposed upon West Africans causing the conversion of monarchy. People found favor in Islam if the leader of the kingdom converted. Also religious legitimacy was brought to the attention of those who would gain status by pilgrimages to Mecca. But aside from the very large impact, no religious transformation was made because most of the cultures were rural and very distant to the places where Islam had interactions with.

Saturday, September 21, 2019

Overview of Synthesis and Preparation Experiments

Overview of Synthesis and Preparation Experiments Introduction: As we know, Manganese is found in the first row of transition metal with the electron configuration [Ar] 3d5 4s2. Besides that, Manganese has different type of oxidation states when it appears as a compound and the oxidation state is from Mn(-III) until Mn(VII). So, we know that the compounds of manganese range in the oxidation number have a different of 10 electrons. In the experiment 1, we prepare tris(acetylacetonato)manganese(III), Mn(acac)3 by using manganese(II) chloride tetrahydrate and potassium permanganate act as oxidation agent to oxidise manganese(II) chloride to acetylacetonemanganese(III). Manganese(III) acetylacetonate is an one- electron oxidant. Manganese(III) acetylacetonate is high spin. It has also a distorted octahedral structure. This distortion is due to the Jahn-Teller effect. (Absolute Astronomy, 2009). The structure of Manganese(III) acetylacetonate is shown as below:- (Source: Tcieurope.com) The equation is as follow:- MnCl2 + 4H2O Mn(H2O)4Cl2 Mn(H2O)4] Cl + 2HC5H7O2 + NaC2H3O2 Mn(C5H7O2)2 + NaCl + HC2H2O2 4Mn(C5H7O2)2 + KMnO4 + 7HC5H7O2 + HC2H3O2 5Mn(C5H7O2)3 + KC2H3O2 + 4H2O Furthermore, bis(acetylacetonato)oxovanadium(IV) is also known as Vanadyl acetylacetonate, VO(acac)2. As we know, it is a blue green complex. bis(acetylacetonato)oxovanadium(IV) has a vanadyl group, VO2+. The vanadyl group is bonded to 2 acetylacetonate anions and the structure of the compound is as follow:- This complex can be made from vanadium(IV) or vanadium(V). In our experiment, bis(acetylacetonato)oxovanadium(IV) was prepared from vanadium(V) oxide and the equation is as follow:- V2O5 + 2H2SO4 + EtOH 2VOSO4 + 3H2O + CH3CHO VOSO4 + 2HC5H7O2 + Na2CO3 VO(C5H7O2)2 + Na2So4 + H2O + CO2 (Absolute Astronomy, 2009) Besides that, both of the acetylacetonato (acac) groups of bis(acetylacetonato)oxovanadium(IV) are able to be exchanged with organic ligands having coordinating atoms of different potentialities. (Maurya, 2003) Both Manganese(III) acetylacetonate and bis(acetylacetonato)oxovanadium(IV) are bond with acetylacetonate which known as ligand. The precursor for acetylacetonate is acetylacetone with formula CÂ ­5H8O2. However, acetylacetonate is an anion. It can bind to corresponding cation but it very hard to exist as a free ion in solution. In addition, Cobalt is a hard, gray metal. It has a proton number 27. Besided that, there are two types of cobalt ions namely Co2+ and Co3+. First, Co3+ ion is more weaker than the Co2+ ion. However, the complex ion formed with higher oxidation state is more stable. ( Â °zmir Institute of Technology, n.d.). So that, Cobalt(III) complexes are kinetically inert. Co3+ can undergo a process known as ligand exchange reactions slowly which compared to Co2+ complexes. The cobalt(III) complexes are usually in octahedral shape. In the experiment, chloropentaamminecobalt(III) chloride is being synthesized. The structure is as follow:- (Source: Chemicalbook.com) The complex is prepared by the oxidation of ammoniacal solution of cobalt(II) salts by using hydrogen peroxide. The formula is as follow:- Co2+ + NH4+ + 1/2H202 → [Co(NH3)5H20]3+ [Co(NH3)5H20]3+ + 3Cl- → [Co(NH3)5Cl]Cl2 + H20 ( Â °zmir Institute of Technology, n.d.) Materials and Methods: Experiment one, 5g of MnCl2.4H20 1.3g of NaC2H3O2.3H2O NaC2H3O2.3H2O Dissolved in 200cm3 of distilled water. 21cm3 of 2HC5H7O2 slowly added 1g of KMnO4 Present of two-phase layer Solution A added in with stirring Dissolved in 50cm3 of distilled water. 13g of NaC2H3O2.3H2O Solution B added in Solution A Solution B Dissolved in 50cm3 of distilled water. Heated with 60oC for 30 minutes Complex washed with acetone Solid complex filtered by suction Resultant solution was cooled with ice-cold water Experiment 2 Experiment 3 5 cm3 distilled water 4 cm3 concentrated H2SO4 10 cm3 ethanol Were added in. Recrystallise Results : For experiment 1, from the equation below, I can get the theoretical mass of the Mn(acac)3 solid complex by : Mn(H2O)4] Cl + 2HC5H7O2 + NaC2H3O2 Mn(C5H7O2)2 + NaCl + HC2H2O2 4Mn(C5H7O2)2 + KMnO4 + 7HC5H7O2 + HC2H3O2 5Mn(C5H7O2)3 + KC2H3O2 + 4H2O From the equation, we know that 1 mol of Mn(H2O)4] Cl = 1 mol of Mn(C5H7O2)2. So, 5 g of Mn(H2O)4] Cl = 0.0308 mol is also = 0.0308 mol of Mn(C5H7O2)2. From the second equation, 4 mol of Mn(C5H7O2)2 = 5 mol of Mn(acac)3 0.0308 mol of Mn(C5H7O2)2 = 0.0385 mol. So, theoretical weight of Mn(acac)3 = 0.0385 mol X 252.938 g/mol theoretical weight of Mn(acac)3 = 9.7381 g The following shows the method to get our experimental weight: Weight of Sample tube 14. 8180 g Weight of Sample tube + solid complex , Mn(acac)3 18.7785 g So, the experimental weight of Mn(acac)3complexes were 3.9605 g Percentage yield of Mn(acac)3complexes we get was = 3.9605 g / 9.7381 g X 100 % = 40.67 % Next, Magnetic moment of Mn(acac)3complexes were calculated as follow : m = 0.9278g- 0.8193g = 0.1085g Ro= -33 L = 2.4cm R= 1165 (paramagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of Mn(acac)3complexes = 2.65 X 10-5 So, Mn(acac)3complexes are paramagnetic Interpretation of IR spectrum for complexes will be written in discussion. For experiment 2, from the equation below, I can get the theoretical mass of the [Co(NH3)5Cl]Cl2 solid complex by : Co2+ + NH4+ + 1/2H202 → [Co(NH3)5H20]3+ [Co(NH3)5H20]3+ + 3Cl- → [Co(NH3)5Cl]Cl2 + H20 From the above equation, 1 mol of Co2+ = 1 mol of [Co(NH3)5H2O]3+ 12g of Co2+ = 0.0504 mol So 0.0504 mol of [Co(NH3)5H20]3+= 0.0504 mol of [Co(NH3)5Cl]Cl2 Theoretical weight of [Co(NH3)5Cl]Cl2 solid complexes = 0.0504 mol X 250.433 g/mol = 12.6218 g The following shows the method to get our experimental weight: Weight of Sample tube 14. 9285 g Weight of Sample tube + solid complex , Mn(acac)3 22.3723 g So, the experimental weight of [Co(NH3)5Cl]Cl2 solid complexes = 7.4438 g Percentage yield of [Co(NH3)5Cl]Cl2complexes = 7.4438 g / 12.6218 g X 100 % = 58.98 % Next, Magnetic moment of [Co(NH3)5Cl]Cl2complexes were calculated as follow : m = 0.9264g- 0.8207g = 0.1057g Ro= -36 L = 2.1cm R= -41 (dimagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of [Co(NH3)5Cl]Cl2complexes = -9.9338 X 10-8 So, [Co(NH3)5Cl]Cl2complexes are dimagnetic For experiment 3, from the equation below, I can get the theoretical mass of the [Vo(acac)2(H2O)] solid complex by : V2O5 + 2H2SO4 + EtOH 2VOSO4 + 3H2O + CH3CHO VOSO4 + 2HC5H7O2 + Na2CO3 VO(C5H7O2)2 + Na2So4 + H2O + CO2 From the above equation, 1 mol of V2O5 = 2 mol of VOSO4 2g 0f V2O5 = 0.011 mol = 0.022 mol of VOSO4 2 mol of VOSO4 = 2 mol of VO(C5H7O2)2 Theoretical weight of VO(C5H7O2)2= 0.022 mol X 264.94 g/mol = 5.8287 g The following shows the method to get our experimental weight: Weight of Sample tube 14.8445 g Weight of Sample tube + solid complex , Mn(acac)3 18.5818 g So, the experimental weight of VO(C5H7O2)2= 3.7373 g Percentage yield of VO(C5H7O2)2= 3.7373 g / 5.8287 g X 100% = 64.12% Next, Magnetic moment of impure VO(C5H7O2)2 complexes were calculated as follow : m = 0.8880g 0.8244 g = 0.0636g Ro= -34 L = 2.5cm R= 72 (paramagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of impure VO(C5H7O2)2complexes = 4.17 X 10-6 So, VO(C5H7O2)2complexes are paramagnetic Magnetic moment of pure VO(C5H7O2)2 complexes were calculated as follow : m = 0.8947g -0.8211 = 0.0736g Ro= -33 L = 2.3cm R= 144 (paramagnetic) CBal = 1 X(g) of pure VO(C5H7O2)2complexes = 5.53 X 10-6 Discussion : Interpretation of IR spectrum for tris(acetylacetonato)manganese(III): Wavenumber (cm-1) Description of bands 2921.1 2959.7 -relative intensity : weak CH stretching of CH3 1593.9 1508.0 -relative intensity : strong -(C=C) stretching -(C=CH) deformation 1387.2 -relative intensity : strong -(CH3)- symmetric C-H deformation 1253.5 -relative intensity : strong -(C=C) stretching -(C-CH3) stretching 1016.8 -relative intensity : strong -(CH3) out-of plane bending 923.2 -relative intensity : strong -(C-CH3) stretching 777.0 -relative intensity : strong -(C-H)deformation 678.1 -relative intensity : medium/ strong -(C-CH3)stretching,(O=C-CH3) deformation -(Mn-O) stretching indicates metal-ligand bond 460.1 relative intensity : weak (C=C) stretching,(C-CH3) stretching -(Mn-O) stretching that also indicates metal-ligand bond Interpretation of IR spectrum for chloropentaamminecobalt(III) chloride: Wavenumber (cm-1) Description of bands 3258.0 -relative intensity : strong NH3 stretch 1576.2 -relative intensity : medium -degenerate asymmetric NH3 stretching 1307.8 -relative intensity : strong -symmetric NH3 angle deformation 844.9 -relative intensity : strong -NH3 rocking 487.6 -(Co-Cl) stretching indicates metal-ligand bond Interpretation of IR spectrum for impure bis(acetylacetonato)oxovanadium(IV): Wavenumber (cm-1) Description of bands 1556.8 1521.0 -relative intensity : medium (C=O) stretching -( C=C),(C=CH) stretching 1418.7 -relative intensity : medium -(CH3) deformation 1374.0 1357.6 -relative intensity : strong -(C=O) stretching -(CH3) deformation mode 1286.6 -relative intensity : strong -(C=C=C) stretching 998.2 -relative intensity : strong and sharp -stretching of V=O bond -it also indicates the metal-ligand bond. 1018.6 -relative intensity : strong -(CH3) rocking 936.1 -relative intensity : strong -(C-CH3) stretching -(C=O) stretching 798.6 -relative intensity : medium -(C-H) out-of-plane bending 685.9 657.2 -relative intensity : medium/ weak -(ring) deformation out-of-plane bending for: 609.2 -(ring) deformation Interpretation of IR spectrum for pure bis(acetylacetonato)oxovanadium(IV): FTIR is known as Fourier Transform Infrared Spectroscopy. This FTIR can be used to identify different types of chemical bond which is either organic compound or inorganic compound. So no two different compounds will have same spectrum. However, FTIR may cause destructive to our sample compare to magnetic susceptibility which is non-destructive. Besides that, magnetic susceptibility can be group by paramagnetic, diamagnetic and ferromagnetic. Paramagnetic substance is those attracted by strong magnetic field but those repelled by magnetic field are diamagnetic substances. Besides that, we can also confirm the shape by using magnetic susceptibility. The Cobalt ion to form Chloropentaamminecobalt(III) chloride has 6 electron in d orbital. Magnetic Susceptibility for chloropentaamminecobalt(III) chloride is -9.9338 X 10-8 and it is diamagnetic. Only the low-spin octahedral shape shows diamagnetic properties, so the shape of chloropentaamminecobalt(III) chloride is octahedral. Magnetic Susceptibility for tris(acetylacetonato)manganese(III) is 2.65 X 10-5 and it is paramagnetic. So the shape of tris(acetylacetonato)manganese(III) is octahedral. However we cannot determine whether is low-spin or high-spin in this situation because we are not calculating the pairing energy for the complex. In addition, there is only one electron in d orbital for vanadium ion of bis(acetylacetonato)oxovanadium(IV). Magnetic susceptibility for it is 4.17 X 10-6 and it is paramagnetic. Moreover, oxovanadium complexes act as insulin mimetics, nucleolytic and anticancer. To recognize insulin- mimetic complexes, a simple and fast in-vitro assay is developed. Besides that, an accurate assessment of the cells taken up of glucose, in-vitro assay with Ehrlich can be used. The oxovanadium complexes can cleave DNA without the present of hydrogen peroxide. Then, its nucleolytic efficiency is also greater but it is affected by the choice of buffer and pH. The oxovanadium complexes is also an anticancer agent against human ovarian cancer. Actually, I have acquired a lot of new knowledge among these three experiments. First, experiment one and two are easier to carry out compared to experiment three. This is because experiment one and two involved oxidation which Mn2+ was oxidized to Mn3+ ; Co2+ was oxidized to Co3+. Whereas experiment 3 involved reduction which reduced VO5+ to VO4+. At the beginning of each experiments, we heated up the sample in open air. It is easier to oxidize the compound than reduce the compound in the presence of oxygen. So, we need more time to heated the V2O5. During the first time of experiment three, I failed to get a blue color solid powder. This is because I heated the sample in the open air and I failed to control the heater. So, after the filtration process, I got a white solid powder. Therefore, I learnt from the mistake and during the second time I used reflux method. This time I can control the heating process well. The ethanol was not evaporated much. After filtration, I got quite a lot of blue solid powder. So, I knew that, for reduction process, we cannot heat the sample too quickly and heat too long. If we heated too long, most of the product will evaporate. Next, from the FTIR spectrum, I can observe that the spectrum from the first and third experiment are quite similar. This is because, the peak from the spectrum are mostly from the acetylacetonato (acac). However, spectrum from experiment two is quite different from other experiment because mostly the peaks come from Cl compared to other experiments. The percentage yield of the complexes from all the three experiment that I have calculate out was not so high. This is maybe due to the washing of the product with acetone, some of the product was dissolved and washed away. However, there are other factors which cause problem to our results. First, most of the heating plate we used cannot function well. I changed many heating plate during the experiment. Next, we have kept our half way done sample for more than 7 days. The results may not be so accurate anymore. Another factor maybe due to the volume and amount of the sample and other material we measure are not accurate. Our product may contain some impurities. However, some of the precaution was taken during the experiment. In these experiments, some of the chemical was corrosive and poisonous such as concentrated HCl and H2SO4. So, we poured the chemical carefully in the fume board. Next, before using any instrument, we read through the manual to understand the steps to function the magnetic susceptibility balance. We also taken down some important steps to function the FTIR spectrophotometer. I have asked some help from lab assistant on where to get the material for experiment. Conclusion The percentage yield for tris(acetylacetonato)manganese(III) is 40.67%, chloropentaamminecobalt(III) chloride is 58.98% and (acetylacetonato)oxovanadium(IV) is 64.12%. For tris(acetylacetonato)manganese(III), the peak for two Mn-O bond are at the region approximately 678.1 cm-1 and 458.3 cm-1. For chloropentaamminecobalt(III) chloride, the peak for Co-N bond is at 669.2 cm-1 while Co-Cl bond is at 486.2 cm-1. For bis(acetylacetonato)oxovanadium(IV), the peak for V=O bond is at 997.4 cm-1 region. Magnetic Susceptibility for tris(acetylacetonato)manganese(III) is 2.65 x 10-5 and it is paramagnetic. Besides, Magnetic Susceptibility for chloropentaamminecobalt(III) chloride is -9.93x 10-8 and is diamagnetic. For bis(acetylacetonato)oxovanadium(IV), magnetic susceptibility for impure complex and pure complex are 4.17X 10-6 and 5.53X 10-6 respectively. They are paramagnetic.