Arrhenius Acid Definition and Examples

Arrhenius Acid Definition and Examples An Arrhenius acid is a substance that dissociates in  water to form hydrogen ions or protons. In other words, it increases the number of H ions in the water. In contrast, an Arrhenius base dissociates in water to form hydroxide ions, OH-. The H ion is also associated with the water molecule in the form of a hydronium ion, H3O and follows the reaction: acid H2O → H3O conjugate base What this means is that, in practice, there arent free hydrogen cations floating around in aqueous solution. Rather, the extra hydrogen forms hydronium ions. In more discussions, the concentration of hydrogen ions and hydronium ions are considered interchangeable, but its more accurate to describe hydronium ion formation. According to the Arrhenius description of acids and bases, the water molecule consists of a proton and a hydroxide ion. The acid-base reaction is considered a type of neutralization reaction where the acid and base react to yield water and a salt. Acidity and alkalinity describe the concentration of hydrogen ions (acidity) and hydroxide ions (alkalinity). Examples of Arrhenius Acids A good example of an Arrhenius acid is hydrochloric acid, HCl. It dissolves in water to form the hydrogen ion and chlorine ion: HCl → H (aq) Cl- (aq) Its considered an Arrhenius acid because the dissociation increases the number of hydrogen ions in the aqueous solution. Other examples of Arrhenius acids include sulfuric acid (H2SO4), hydrobromic acid (HBr),  and nitric acid (HNO3). Examples of Arrhenius bases include sodium hydroxide (NaOH) and potassium hydroxide (KOH).

Colin Powell essays

Colin Powell essays When asked how he achieved his success, Colin Powell answered with two words, hard work. The American Military figure Colin Powell contributed much to society. Colin Powell had a very interesting background. First of, Colin Powell was born on April 15, 1937, at Harlems Presbyterian Hospital (Hughes 19). Furthermore Colin was born in Harlem, but for most of his childhood he lived in the South Bronx (Hughes 190. Moreover, Colin Powell got in some trouble when he was young, but nothing serious (Hughes 24). But on the other hand, when Colin was offered a job one day he accepted. The owner remembered Colin as a Hard-working man (Hughes 30). In conclusion, Colin Powells childhood was pretty much average, like everyone else. Colin Powells education was average compared to everyone elses. During his high school, Morris High school, he made a C-average throughout the years (Hughes 32). For example, his parents wanted Colin to go to college. They wanted him to have a good education. They thought of education as highly important (Hughes 41). Therefore, Colin Powell graduated with a B.A. from the city college of New York, with a major in geology (Levy 293). For this reason, Colin Powells education helped him along through his career. Colin Powell had many unique experiences. For instance, Colin Powell first met Alma Johnson on a blind date. It was a beginning of an eight-month relationship (Hughes 60-61). Later, on August 25, 1962, Alma Johnson married Colin Powell in the First Congregational Church on Center Street West in Birmingham (Hughes 64). Sadly thereafter, Luther Powell, Colins father, had died of liver cancer in his Queens home in April 1977 (Hughes 112). Later on, in June 1987 Michael Powell, Colin Powells son, flipped the jeep he was driving. He was thrown from the jeep and the jeep landed on him. He had to return to civilian life (Hugh ...

Too Big to Fail, Wall Street, Wall Street 2 Assignment

Too Big to Fail, Wall Street, Wall Street 2 - Assignment Example The movie focuses on Bud Fox, a young broker in Wall Street. Fox’s ambition to succeed in his career is fuelled by his determination to be as wealthy as Gordon Gekko, a millionaire trader, and raider. Gekko rides on the statement ‘Greed is good’. Fox and Gekko meet which results to the young stockbroker working with the millionaire. In no time, Bud Fox rises in the financial ladder. He meets Darien in the process and is able to finance their affair regardless of her being high maintenance. The success is followed by realizing the illegal ways which the millionaire uses to acquire money. Amongst his dark dealings, Fox learned that the company his father is an employee is in jeopardy. Wall Street chronicles the greed in America during the 1980s in form of insider trading. Important companies utilized to tell the scandal stories are the employer to Bud’s father, Blue Star Airlines, Teldar Paper and Anacott Steal. The progression of the movie introduces us to L arry Wildman who wants to buy the latter mentioned company. Teldar Paper is a reputable company which the raider and trader have set his eyes on. The detailed depiction of insider trading which involves stock trading after getting information from the management of a company is the main event of the movie. The young stockbroker is caught in between the will to be rich and prevent Gekko from ruining his father’s career. The movie ends with the imprisonment of Gekko for money laundering, fraud of securities and racketeering.

Saddam Husseins Execution Essay Example | Topics and Well Written Essays - 1000 words

Saddam Husseins Execution - Essay Example President of the United States, George Bush applied his doctrine of pre-emption and US forces entered Afghanistan. In pursuance of this policy, the Bush administration went a bit further and made an effort to win hearts and minds of the Muslims. Once again the old rivals of first Gulf war were confronting each other. But this time the objective was even bigger. The allied forces led by US troops, made a plan and showed determination to get rid of Saddam Hussain once and for all. This would have given two clear benefits namely support from the long suppressed Iraqi nation, who would welcome any positive change and secondly the permanent footings in the region of middle east that has enormous value because of its precious mineral resources (Mike Shuster 2006). The Arab world wanted freedom from the fearful and despotic rule of Saddam Hussein and US promised exactly that (Hasan Abu Nimah 2007). Although some of the analysts claim that the war was unjustified on the grounds that it did not have the backing of United Nations. Still others say that this was the only way to relieve the Iraqi nation of its miseries. This is the way that would pave well for the conducive environment for democracy. A democratic government in Iraq would be a basis for stability of the country and the region. But the incidents like the Abu Gharaib added to American problems, need to send more troops than pulling out and the rising death toll on daily basis aggravated the situation and changed the whole scenario. The Bush administration started losing its support of allied forces and among the American public. The insurgencies against the forces started rising tremendously and the Arab world lost confidence in the United States. The whole world began to doubt and started criticizing the policies and strategies of the American leadership. Thus, President Bush had to think of some way out to recover the messed up state of affairs. He therefore, decided to bring Saddam under trial and the Iraqi court sentenced him to death. Soon after his death the air is heavy with accusation as the implication of grotesquely botched lynching sink in. What should have been an act of justice following due process had the baying malice of an execution. A legal execution intended to show at last that the period of Saddam is over-threatened to have the conflicting effects. Whilst a tyrant of exceptional violence is publicized dying with pride and no slight valor at the hands of covered thugs. No doubt American officials are cleansing their hands of this whole shocking concern, and Tony Blair is saying no to make any remark from his Miami poolside. There is some fairness in American statements that it is the Iraqi PM, Nouri al-Maliki, who has to take the burden of blame for this fiasco. He outshined religious and legal reactions to rush the death sentence. The Iraqi constitution wants President Jalal Talabani and his two colleagues to sign a verdict of authorization for 'the death sentence'. Mr Maliki efficiently disregarded this obligation. Even more rabble-rousing to the extent that Iraq's Sunni minority is concerned was his breach of the Iraqi decree that executions should not occur during the Eid al-Adha, the Muslim's celebration day. For Sunnis, that

Niccolo Machiavelli Essay Example for Free

Niccolo Machiavelli Essay Niccolo Machiavelli was a political philosopher of the Renaissance. He lived from 1496-1527. Niccolo Machiavelli was also a very famous painter in his time. He painted many famous paintings that are seen in museums, books, and many other places. He was also involved in government throughout his life. Niccolo Machiavelli was a painter, political philosopher, Italian historian, an statesman for influenced many political leaders in Europe. Niccolo Machiavelli led a very political life. In 1494, Niccolo Machiavelli became an important diplomat. He spent most of his time over the years writing history, political philosophy, and plays. The Renaissance was a time of political conflict. Niccolo took part in diplomatic missions through France, Germany, and Italy. In later years, he was forced to retirement of the political business. Machiavelli was known as the â€Å"father of modern political theory†. Niccolo Machiavelli had many political writings. Many of Machiavelli’s writings reflected political issues. He wrote about the world around him and his life in the Renaissance. He witnessed many changes in the environment and wrote about them. Niccolo Machiavelli wrote one political treatise titled The Prince. The Prince was written during a time of tragedy in the Renaissance. Many things Machiavelli wrote about had to deal with politics and violence. The Prince was written in 1513. Although it was written then, it was published however until 1532 and Machiavelli’s death. The theme of this book is about preservation of authority and the establishment of it. Because of The Prince, Machiavelli is considered one of the greatest early modern analyzers of the political power. In 1498, Machiavelli served as a civil servant in Florence. Later in 1512, Machiavelli was imprisoned and the republic failed. Machiavelli had many jobs over his lifetime. He was the head of the second chancery in 1498. Niccolo was also the secretary of council and he studied political tactics. He also studied the strength of a nation with only one prince. In 1509, Machiavelli led a small army to free Pisa. Later in his life, for 5 years he worked as a historiographer. Niccolo Machiavelli had hard times in his life. He lost his place in politics and very much wanted it back. When he wrote The Prince, he wrote it to try and regain favoritism by Medici. In the end, Medici didn’t agree with what Machiavelli said in The Prince and ended up rejecting Machiavelli’s proposal to have that job back. Machiavelli also wrote a book titled â€Å"Discourses On Livy†. The book was on Machiavelli’s full political philosophy. Niccolo also wrote a biography on the Life of Castruccio Castracani. He wrote many plays and also many poems. His most famous poem was The Mandrake. The Mandrake was written in 1524. Machiavelli also wrote the History of Florence in 1525. The History of Florence tells about chronicles of the city. Machiavelli also wrote the Art of the War in 1521. That book describes mercenary troops and their lives. Niccolo Machiavelli was a very productive leader. Over all of his tragedies that happened in his life, he still overcame all of it. He worked very hard producing plays that have become very famous over the years. He wrote The Prince, which is a very well populated piece today. Not only did Machiavelli produce plays but he also wrote poems and biographies for people. Many of his quotes that he resighted in The Prince are still remembered today and used greatly. He was also a very significant political leader and went very far in government.

Fossil Gaps Essay examples -- Geology Evolution Essays Biology

Fossil Gaps â€Å"The study of fossils provides strong evidence for evolution.† (Campbell, 260) Or does it? The fact is that the fossil record is a silent testimony against Darwin’s erroneous theories of the fossil record documenting his idea of macroevolution. The book, Biology: Concepts and Connections (hereafter referred to as Biology), clearly agrees with the evolutionary outlook of â€Å"fossils [being] a rich source of evidence for evolution.† (Campbell, 260) However, this book, along with most evolutionists, avoids the substantial questions the fossil record actually represents. In the rock layers of the earth, scientists have found many fossils (preserved traces of plants and animals). According to evolutionary paleontologists (scientists studying fossil remains), the history of this world is recorded in the rocks that make up the earth’s crust and the fossils that they contain. Evolutionists claim that these rocks have been forming, wearing away, and reforming since the world began. (Halbach, 387) Although Biology often overlooks the criteria arguing against evolution, it still contains the gaps that the evolutionary theory possesses. Among these gaps are the arguments against the fossil record – circular reasoning, reversed geological columns, polystrate fossils, sediment accumulation, inconclusive physical evidence, and lack of transitional fossils. A scientist named Gliedman gives an excellent summary reflecting upon the latter dispute: â€Å"No fossil or other physical evidence directly connects man to ape.... The problem for gradualists [those who support gradual evolution or orthodox Darwinian evolution] is that... these ancestral species remain essentially unchanged throughout their ‘million-year life spans’, yet each of them differs substantially from its immediate predecessor.† (Glideman, 90-91) Biology holds the evolutionary view of older fossils deep in the strata are those of the primitive evolving organisms. The youngest rocks, which are on the topmost strata of the earth’s crust, are supposed to contain fossils of organisms which have more recently evolved – and therefore are similar to organisms alive today. Geologists and paleontologists have devised a geological time chart to show what they assume to be the evolutionary outline of the earth’s history. According to this time scale, the earth’s history can be divided into eras; each ... ...ry tales with facts. It is true that evolution has been mixed with science for the last thirty years, but that does not mean that it is the same as science – it is simply another scientific theory. Bibliography 1. Baker, Sylvia. Bone of Contention: Is Evolution true? USA: Presbyterian & Reformed Publishing Company, 1996. 2. Campbell, Neil A., Lawrence G. Mitchlell, and Jane B. Reece. Biology: Concepts and Connections, Third ed. Canada: Addison Wesley Longman, Inc., 1994. 3. Darwin, Charles. The Origin of Species. New York: Princeton University Press, 1962. 4. Gliedman, John. â€Å"Mutations.† Science Digest. New York: Hafner, 1982. 5. Hakbach, John. Science: Order and Reality. USA: A Beka Book Publications, 1995. 6. McLean, G. S.; McLean, Larry; Oakland, Roger. The Bible Key to Understanding the Early Earth. Oklahoma City, Oklahoma: Southwest Radio Church, 1987. 7. Morris, Henry M. Scientific Creationism. El Cajon, California: Master Books, April 1985. 8. Schuchert, Charles. A TextBook of Geology. London: John Wiley & Sons, Inc., 1995. 9. Stanley, Steven M. "Fossil." World Book Online. America’s Ed., Worldbookonline.com. Chicago: World Book, Inc., 2002.

Does Science After All Rule Out A Personal God? Essay

Since time in memorial, science and religion which contains the idea of a personal god and his existence as one of its key pillar aspects, have always depicted an outstanding collide. Many scientific scholars and theologists have been involved in this argument in a bid to defend their different stands. However as long as this heated debate has existed, no answer has evidencial conclusion has been arrived at. For instance, the views contained by Albert eisten and Paul Tillich depict the difference in opinion about this aspect of a personal God. as much as everyone is entitled to his/her own opinion, these opinions and the justification they have do not seem to offer any direction to this long standing debate. Einstein states that there is no personal god. He gives a reason to justify his view stating that he and every other intellect is in a state that he similates to that of a little child getting into a huge study with books written in many different languages. He says this child knows that these books have their authors but he/she does not know and neither does she/he comprehend the books’ arrangement. He concludes that this is the perspective held towards god not only by him but by almost every other human having intelligence. After a comparison he did between the magnanimous relay and arrangement of the cosmos and failure to reconcile these features with the evil and suffering he got in the human’s being, eisteen concluded posing a question , how could an almighty god if at all he is there allow the existence of the suffering that is found on earth? In summing Einstein’s opinion he says that his idea is a childlike. However to him an embrace to the idea would be naive and anthropological . On the other hand theologist Paul Tillich holds a different opinion on the same. he asserts the existence of a personal god describing this being as the stronghold of being and even as the existence itself. Tilich, being a theologian is assertive and upholds the idea that a personal god actually exists despite the occurances that may question the existence of this being in terms of pain ,evil and suffering that exists among the human race. Tillich also states that God’s existence is not an aspect that can be proved or disapproved. In more bids to put more emphasis on his opinion which was commonly upheld by other theologists , Tillich even turned scientific tools into theological instruments. He was utterly committed to attempt put his view in the crystal clearest way that god is beyond essence and existence. Other scholars also involved in this argument like Hartshine say that there is really no sense in trying to find out whether a personal God exists. He however states that if there is existence of a personal God is a possibility then there is a necessity of doing so. In this bid it seems that there is a clear cut between those who agree with Tillich’s argument and those who differ with him. However these efforts are slowly being thwarted as the clock ticks. In a bid to conclude, it should therefore be noted that in spite the numerous argument the fact is, scientists have no evidence to prove that a personal god does not exist. Sources Espanol. Evidence for God from science. Retrieved 23rd October 2008 from : http://www. godandscience. org