Chemistry Report

Standardize a solution of potassium manganate(VII) by an iron (II) salt (ammonium iron (II) sulphate) Introduction Oxidation numbers describe the number of electrons the atom will gain or lose during a reaction. Each atom in an equation can be assigned an oxidation number according to certain rules. If the oxidation number of an atom increases as you go from the left side to the right side if an equation, oxidation has occurred (electrons have been lost); if the oxidation number decreases, reduction has occurred (electrons have been gained). MnO4? + 8 H+ + 5e? Mn+? + 4 H2O (1) In the above reduction half-reaction, manganese has undergone a decrease in oxidation number from +7 to +2. In the following oxidation half-reaction, each iron atom has undergone an increase in oxidation number from +2 to +3. Fe+? > Fe+? + e? (2) Oxidation must occur along with reduction. These reactions are called redox (reduction/oxidation ) reactions. The number of electrons lost and gained in the half react ions must be equal. The overall redox reaction becomes: MnO4? + 5 Fe+? + 8H+ > Mn+? + 5 Fe+? 4H2O (3) Potassium permanganate is widely used as an oxidizing agent in volumetric analysis. Since the MnO4 ion is a deep pink-violet colour and the Mn2+ ion is nearly colourless, the end point in titrations using KMnO4 can be taken as the first pink colour that persists in the solution. In titration , permanganate solution is put in the burette and is run down to an acidified solution of reducing agent, e. g.. ammonium iron(II) sulphate solution. In this experiment, KMnO4 will be used to determine the percentage of Fe2+ in an unknown solid sample dissolved in water. The permanganate oxidation of Fe2+ to Fe3+ is carried out in an acidic solution to prevent the air oxidation of Fe2+. A potassium permanganate solution will be standardized by titrating it with a known mass of Mohr's salt, ferrous ammonium sulphate hexahydrate or Fe(NH4)2(SO4)2Â ·6H2O. (Mohr’s salt fulfils the requirements of a primary standard. It is easily obtained in pure form, it is stable to oxidation when dry and is not hygroscopic. http://faculty. ccri. edu/eterezakis/1100%20Exp%205,%20Iron%20Analysis%20by%20Redox%20Titration%20_egt_. pdf http://www. mrteverett. om/Chemistry/labs/Chem%201A%20-%20Lab%20-%20Titration%20%28Redox%29. pdf Objectives To prepare and standardize a solution of an oxidizing agent,potassium manganate(VII) by titrating it with standard solution of a reducing agent,ammonium iron (II) sulphate. Then use the standardized to determine the concentration of a sample of unknown concentration. Materials Ammonium iron (II) sulphate crystals Potassium manga nate (VII) solution Distilled water 1. 0M sulphuric acid Apparatus Beakers 250cm? volumetric flask Conical flask Burette Pipette Electronic weighing machine Methods

Anti-Terrorism Bill essays

Anti-Terrorism Bill essays The senate, in regards to the safety of America, should pass the bill proposed by Ashcroft. Our lives in America are no longer calm and idyllic. We have been struck by these horrid attacks on September 11th, 2001. It is time to struck back and take action and we need to pass the bill to obtain the protection needed for America. Terrorism is a clear and present danger to Americans today and the American people do not have the luxury of unlimited time in erecting the necessary defenses. Terrorism is a threat to America. We must take action to prevent the terrorists from invading our safety in this country. This bill will help increase security and allow law enforcement to seize suspected terrorists. Our best defense right now is to pass the bill because safety comes first in a situation like this. We need to be more cautious and enhance our security to protect the good citizens in America. We need this bill to authorize search and surveillance. It is stated in section 201 of the bill that they will enforce the Alien Terrorist Removal Procedures. This provision would authorize the INS to deport aliens accused of engaging in terrorist activities. It is critical to be more vigilant and be aware of all activities around us. The bill will allow broader disclosure of grand jury information. It is important for us to increase our wariness and make sure we will not be attacked by terrorists ever again. The bill serves as our protection in America. Many people argue, The civil liberties we value so much as a society are at stake. Although it is often times mentioned that our rights will be violated, it is undeniable to say that America needs this bill. We need examination and protection to give us assurance in this country. The bill is meant to allow authorities to detain individuals only when they are already in violation of the immigration law. It is not meant to shred our constitution ...

Alternative Meanings for Names of Sense Organs

Alternative Meanings for Names of Sense Organs Alternative Meanings for Names of Sense Organs Alternative Meanings for Names of Sense Organs By Mark Nichol The words for body parts that enable us to perceive stimuli have, sensibly, been applied to other meanings that are extensions of the original connotations. Here are additional meanings of ear, eye, nose, skin, and tongue. Ear An ear is an earlike part of an object or a body or a plant. It also means â€Å"sensitivity to pitch and tone of music or melody or rhythm of speaking,† and it’s a figurative term for a listener or the attention or awareness a listener offers. Eye This word refers to something resembling an eye in appearance or function. It might also denote a glance or a look, or close attention or scrutiny, as well as judgment or point of view or good eyesight or discernment. Eye also refers to the direction from which wind blows or the center of a storm. Nose Nose is employed to mean â€Å"the sense of smell,† or to refer to the aroma or bouquet of something. It also applies, usually in the adjectival form nosy, to curiosity or meddling, though, more positively, one might be said to have a nose, or a knack for comprehending or finding, for something. Also, the forward or projecting end of a tool or any object is frequently referred to as its nose. Skin The covering of a piece of fruit or a seed is called the skin, and any casing or sheathing, or a film or a similar layer, is often referred to as such. It also refers to well-being (â€Å"Save your skin!†) or to one’s self (â€Å"She’s comfortable in her own skin†). Tongue Tongue applies to the power of communication, or to language itself. The word also describes the quality of the tone of something said, or the intention or sense of the message (as when describing someone as having a sharp tongue). In plural form, it refers to meaningless utterances, usually in the context of religious ecstasy (â€Å"speaking in tongues†); tongue also denotes the cry of a hound during a hunt, or a similar sound. It also applies to a narrow projection of an object or of land, or to an object resembling a tongue in form, a projecting edge on a board designed to be inserted into a groove on an edge of an other board (this system of construction is called tongue-and-groove), or a flame. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Expressions category, check our popular posts, or choose a related post below:50 Handy Expressions About HandsRules for Capitalization in TitlesPrepositions to Die With

Definition and Examples of Epideictic Rhetoric

Definition and Examples of Epideictic Rhetoric Epideictic  rhetoric (or epideictic oratory) is ceremonial discourse:  speech or writing that praises or blames (someone or something). According to Aristotle, epideictic  rhetoric (or epideictic oratory) is one of the three major branches of rhetoric. Also known as  demonstrative rhetoric  and ceremonial discourse, epideictic rhetoric includes funeral orations, obituaries, graduation and retirement speeches, letters of recommendation, and nominating speeches at political conventions. Interpreted more broadly, epideictic rhetoric may also include works of literature. In his recent study of epideictic rhetoric (Epideictic Rhetoric: Questioning the Stakes of Ancient Praise, 2015),  Laurent Pernot notes that since the time of Aristotle, epideictic has been a loose term: The field of epideictic rhetoric seems vague and laden with poorly resolved ambiguities. EtymologyFrom the Greek, fit for displaying or showing off Pronunciation:  eh-pi-DIKE-tick Examples of Epideictic Rhetoric Daniel Webster in Praise of John Adams and Thomas Jefferson:Adams and Jefferson, I have said, are no more. As human beings, indeed, they are no more. They are no more, as in 1776, bold and fearless advocates of independence; no more, as at subsequent periods, the head of the government; nor more, as we have recently seen them, aged and venerable objects of admiration and regard. They are no more. They are dead. But how little is there of the great and good which can die! To their country they yet live, and live for ever. They live in all that perpetuates the remembrance of men on earth; in the recorded proofs of their own great actions, in the offspring of their intellect, in the deep-engraved lines of public gratitude, and in the respect and homage of mankind. They live in their example; and they live, emphatically, and will live, in the influence which their lives and efforts, their principles and opinions, now exercise, and will continue to exercise, on the affairs of men, not onl y in their own country but throughout the civilized world.(Daniel Webster, On the Deaths of John Adams and Thomas Jefferson, 1826) Oprah Winfreys Eulogy for Rosa Parks:And Im here today to say a final thank you, Sister Rosa, for being a great woman who used your life to serve, to serve us all. That day that you refused to give up your seat on the bus, you, Sister Rosa, changed the trajectory of my life and the lives of so many other people in the world.I would not be standing here today nor standing where I stand every day had she not chosen to sit down. . . . Had she not chosen to say we shall not- we shall not be moved.(Oprah Winfrey, Eulogy for Rosa Parks, October 31, 2005) Observations on Epideictic Rhetoric Persuasion and Epideictic Rhetoric:Rhetorical theory, the study of the art of persuasion, has long had to recognize that there are many literary and rhetorical texts where rhetoric does not aim directly at persuasion, and their analysis has long been problematical. To categorize speeches aimed at praise and blame rather than at decision-making, speeches such as funeral orations and encomia or panegyrics, Aristotle devised the technical term epideictic. It can readily be extended to take in literary and theoretical texts insofar as they also do not aim directly at persuasion.(Richard Lockwood, The Readers Figure: Epideictic Rhetoric in Plato, Aristotle, Bossuet, Racine and Pascal. Libraire Droz, 1996) Aristotle on Epideictic (Ceremonial) Rhetoric:The ceremonial orator is, properly speaking, concerned with the present, since all men praise or blame in view of the state of things existing at the time, though they often find it useful also to recall the past and to make guesses at the future.(Aristotle, Rhetoric) Cicero on Epideictic Orations:[Epideictic orations are] produced as show-pieces, as it were, for the pleasure they will give, a class comprising eulogies, descriptions, and histories, exhortations like the Panegyric of Isocrates, and similar orations by many of the Sophists . . . and all other speeches unconnected with battles of public life. . . . [The epideictic style] indulges in a neatness and symmetry of sentences, and is allowed to use well-defined and rounded periods; the ornamentation is done of set purpose, with no attempt at concealment, but openly and avowedly . . ..The epideictic oration, then, has a sweet, fluent and copious style, with bright conceits and sounding phrases. It is the proper field for sophists, as we said, and is fitter for the parade than for the battle . . ..(Cicero, Orator, trans. by H.M. Hubbell) Aims of Epideictic Rhetoric:If we speak in praise . . . if they do not know him, we shall try to make them [the audience] desire to know a man of such excellence since the hearers of our eulogy have the same zeal for virtue as the subject of the eulogy had or now has, we hope easily to win the approval of his deeds from those whose approval we desire. The opposite, if it is censure: . . . we shall try to make them know him, in order that they may avoid his wickedness; since our hearers are unlike the subject of our censure, we express the hope that they will vigorously disapprove his way of life.(Rhetorica ad Herennium, 90s BC) President Obamas Epideictic Rhetoric:Kathleen Hall Jamieson, the director of the Annenberg Public Policy Center at the University of Pennsylvania, noted that there were many forms of political discourse. . . . She said Mr. [Barack] Obama excels at speeches read from a teleprompter to a mass audience, not necessarily at the other forms. And his best speeches, she said, were examples of epideictic or ceremonial rhetoric, the kind we associate with conventions or funerals or important occasions, as opposed to the deliberative language of policymaking or the forensic language of argument and debate.They don’t necessarily translate to, say, selling major legislation, a skill mastered, for example, by Lyndon B. Johnson, hardly a compelling orator.It’s not a kind of speech that’s a valuable predictor of one’s capacity to govern, she said. I don’t mean to say it doesn’t forecast something. It does. But presidents have to do a lot more than that.(Pete r Applebome, Is Eloquence Overrated? The New York Times, January  13, 2008)

The Involvement in the Manufacturing Industry and High Rates of Research Paper - 4

The Involvement in the Manufacturing Industry and High Rates of Joblessness - Research Paper Example Trade between two economies is very sensitive to the slightest changes in understanding. It is factual that the cost of tyre production in China is lower than that in America. This enables the sales of Chinese tires at affordable prices while still making profits. Furthermore, some American firms have established their tyre manufacturing industries in China to benefit from the least cost of production (Mankiw et al. 165). This implies that the imposition of the trade tariffs cannot be effective without an equal disruption of the American investors in China. On the other hand, the imposition of specific tariffs for partner countries arouses diplomatic questions on the legitimacy of the protective approach to trading. During the accession of China to the World Trade Organization, it ratified the agreement that gave a loophole for such unprecedented tariffs. This ratification gave room for The protectionist measures undertaken by the American government translates into mere political posturing without any substantial positive effects on trade (Sutter 214). This scenario may escalate into a trade war and inflict a serious economic slump on both the American and Chinese economies. The spill of the trade row may necessitate equal invocation of key agreements such as the anti-dumping policy for the American goods by the Chinese government. Setting the tariffs on Chinese rubber tires at 35% may have appeared plausible for the American government since the world trade organization had preferred a 55% tariff. However, as it turns out, this form of protectionism in the end only incurs expenses to the American economy overly.

The Use of Technology in Finance Essay Example | Topics and Well Written Essays - 2000 words

The Use of Technology in Finance - Essay Example Stricter more stringent rules required firms to change their reporting processes, enabling more transparency. The resultant strict rules enacted necessitated firms to adopt modern accounting practices that could only be employed through innovative technology interfaces. The integration of automated or technological applications although costly in terms of resources and time has proven to be an effective control measure for the authorities while simultaneously assisting corporate leaders manage their internal systems. Other benefits of using technology in finance have been the development of enhanced marketing, communication, research and transaction technologies by organizations. Technology has been described as the application of individual, logical or material approach to resolve an impasse that leads to enhanced efficiency. It has been credited with improvement of business operations in firms including: administration, communications (from postal letters to email, mobile phones, telecast etc.), trading (online trading or ecommerce), automated production line technology, and research facilities among others.The need for embracing advanced technology by corporations was highlighted by the tighter regulations enacted by the Securities and Exchange Commission (SEC) in conformity with compliance rules relating to requirements regarding evaluation of internal control over financial reporting and management certification requirements mandatory to amendments under the Securities Exchange Act of 1934 that were adopted on June 5, 2003, pursuant to Section 404 of the Sarbanes-Oxley Act. Companies needed advanced technology to detect undesired movement in inconsisten cies, automated reporting, upholding customer assets, violations etc., hence avert bad practices while enhancing the companies efficiency (WS&TStaff, 2005). Corporate governance encompasses the compliance to rules or procedures, traditions, edicts,

Compare Chinese monster and American monster Essay

Compare Chinese monster and American monster - Essay Example Chinese holds the Spring Festival to commemorate Nian Monster. Besides, they consider the Spring Festival as the grandest, most magnificent festival in the history of the country’s culture. On the other hand, Momo the Missouri Monster is a hairy, foul-smelling monster. According to Taylor (130), Momo, in simple term refers to Bigfoot. It was first reported in 1971 and identified to live in Missouri. Since that time, the monster has been spotted up and down the Mississippi river. In the first scenario, two picnickers asserted that they saw the monster come out the woods nearby. The foul-smelling creature allegedly ate their food while they locked themselves inside the car. In the second scenario, local children (Doris, Wally and Terry) reportedly saw Momo walk regally past them hauling a dead dog. The fundamental differences between the two legends, Nian and Momo, highlight the deep-seated cultural variation and beliefs between Chinese and Americans. In this regard, this paper tries to compare the existence of Nian vs. Momo the Missouri Monster and their importance to Chinese and American cultures respectively. Nian was a furious monster that allegedly descended from the mountains or under the sea to hunt people every 1st and 15th of the lunar month. Thus, people locked their doors very early before nightfall on the days the creature was likely come (Wong 27). Although the monster attacked anyone regardless of gender, it mainly preferred children. Parents were terrified of a possible fatal attack on their children who often played outside their homes. The old man in the village thought the panic in people perhaps made the monster furious and so bold. He asked the people to come together and find a way of conquering the monster. According to the old man, burning of bamboo, beating gongs and drums, lighting off fireworks would be an effective approach to conquering Nian (Wong 27). He believed that large noises would threaten and scare away the horrible monster.