Wednesday, November 27, 2019

The Life Of George Washington Essays (606 words) -

The Life Of George Washington Flexner, James Thomas. George Washington. Little. 1967 George Wahington George Washington was one of the founding fathers of the United States of America. He served as commander-in-chief of the Continental army during the Revolutionary War, and later served as the first president of the United States. His thoughts and ideas helped mold the United States into the great country that it is today. George Washington was born on February 22, 1732 in Westmoreland County, Virginia. He was the eldest son of Augustine Washington and Mary Ball Washington. He received no formal education, but he read geography, military history, agriculture, deportment, and composition. Washington later developed a powerful and convincing style of speech and writing. He enjoyed sports and social occasions, and he later became a surveyor for landowners on the Virginia frontier. George Washington was elected president of the United States in 1789, and in New York City on April 30, 1789, he took the oath of office as President of the United States at age 57. He was extremely influential in the initial operation of the new government. After the ballot he wrote, My movements to the chair of government will be accompanied by feeling not unlike those of a culprit, who is going to the place of his execution. Washington's task was to organize a government but also create a role for the highest officer of the new nation. Both tasks earned him enemies. One of Washington's first duties of office was establishing a cabinet. He appointed Alexander Hamilton secretary of treasury and Thomas Jefferson secretary of state. Washington allowed Jefferson to pursue a policy of seeking trade with European nations. Hamilton proposed important ideas such as a funded national debt and the creation of the Bank of the United States. The first United States census was taken in 1790 which showed the population to be four million. He created departments within the government, each with different jobs. The government issued money that was good in all states. President Washington also helped plan a new capital for the nation that was named Washington in his honor. Also, Vermont and Kentucky were added as states in 1791 and 1792 respectively. George Washington reluctantly agreed to serve a second term as president, even though he wanted to go home to Mount Vernon. An outbreak of war in Europe plagued Thomas Jefferson's foreign policy design. Alexander Hamilton formed a pro-British foreign policy during Washington's second administration. Jay's Treaty of 1795 settled outstanding American differences with Great Britain. This treaty was extremely controversial, although the treaty was passed by a narrow margin in both the Senate and the House of Representatives. The Whiskey Rebellion in western Pennsylvania against a federal excise tax was his critical domestic challenge. He himself rode partway to the field at the head of the militia that was raised to put down the rebellion. Washington reorganized his cabinet in 1795, and Tennessee became a state in 1796. He was asked to return for another term as President, but he declined. Washington carefully planned a farewell speech to mark the end of his presidency, and issued his farewell speech on September 7, 1796. He was succeeded by his vice-president, John Adams the following March 4. He then retired to Mount Vernon, where he died two years later on December 14, 1799 at the age of 67. George Washington remains one of the most important figures in the history of the United States of America. Washington's accomplishments are and will continue to serve as precedents for future Presidents. I feel that his two terms in office as the President of the United States were the most important periods in the history our country. He shaped the government that we live under today, and if not for him, our government might be completely different. Biographies

Saturday, November 23, 2019

Equivalence Point Definition

Equivalence Point Definition The equivalence point is a chemistry term youll encounter when you do a titration. However, it technically applies to any acid-base or neutralization reaction. Heres its definition and a look at methods used to identify it. Equivalence Point Definition The equivalence point is the point in a titration where the amount of titrant added is enough to completely neutralize the analyte solution. The moles of titrant (standard solution) equal the moles of the solution with unknown concentration. This is also known as the stoichiometric point because it is where the moles of acid are equal to the amount needed to neutralize the equivalent moles of base. Note this does not necessarily mean the acid to base ratio is 1:1. The ratio is determined by the balanced acid-base chemical equation. The equivalence point is not the same as the endpoint of a titration. The endpoint refers to the point at which an indicator changes color. More often than not, the color change occurs after the equivalence point has already been reached. Using the endpoint to calculate equivalence naturally introduces error. Key Takeaways: Equivalence Point The equivalence point or stoichiometric point is the point in a chemical reaction when there is exactly enough acid and base to neutralize the solution.In a titration, it is where the moles of titrant equal the moles of solution of unknown concentration. The acid to base ratio is not necessarily 1:1, but must be determined using the balanced chemical equation.Methods of determining the equivalence point include color change, pH change, formation of a precipitate, change in conductivity, or temperature change.In a titration, the equivalence point is not the same as the endpoint. Methods of Finding the Equivalence Point There are several different ways to identify the equivalence point of a titration: Color Change - Some reactions naturally change color at the equivalence point. This may be seen in redox titration, particularly involving transition metals, where the oxidation states have different colors. pH Indicator - A colored pH indicator may be used, which changes color according to pH. The indicator dye is added at the beginning of the titration. The color change at the endpoint is an approximation of the equivalence point. Precipitation - If an insoluble precipitate forms as a result of the reaction, it can be used to determine the equivalence point. For example, the silver cation and chloride anion react to form silver chloride, which is insoluble in water. However, it can be difficult to determine precipitation because the particle size, color, and sedimentation rate may make it difficult to see. Conductance - Ions affect the electrical conductivity of a solution, so when they react with each other, the conductivity changes. Conductance may be a difficult method to use, especially if other ions are present in the solution that can contribute to its conductivity. Conductance is used for some acid-base reactions. Isothermal Calorimetry - The equivalence point may be determined by measuring the amount of heat that is produced or absorbed using a device called an isothermal titration calorimeter. This method is often used in titrations involving biochemical reactions, such as enzyme binding. Spectroscopy: Spectroscopy can be used to find the equivalence point if the spectrum of the reactant, product, or titrant is known. This method is used to detect etching of semiconductors. Thermometric Titrimetry: In thermometric titrimetry, the equivalence point is determined by measuring the rate of temperature change produced by a chemical reaction. In this case, the inflection point indicates the equivalence point of an exothermic or endothermic reaction. Amperometry: In an ampometric titration, the equivalence point is seen as a change in the measured current. Amperometry is used when the excess titrant is able to be reduced. The method is useful, for example, when titrating a halide with Ag because it isnt affected by precipitate formation. Sources Khopkar, S.M. (1998). Basic Concepts of Analytical Chemistry (2nd ed.). New Age International. pp. 63–76. ISBN 81-224-1159-2.Patnaik, P. (2004). Deans Analytical Chemistry Handbook (2nd ed.). McGraw-Hill Prof Med/Tech. pp. 2.11–2.16. ISBN 0-07-141060-0.Skoog, D.A.; West, D.M.; Holler, F.J. (2000). Analytical Chemistry: An Introduction, 7th ed. Emily Barrosse. pp. 265–305. ISBN 0-03-020293-0.Spellman, F.R. (2009). Handbook of Water and Wastewater Treatment Plant Operations (2 ed.). CRC Press. p. 545. ISBN 1-4200-7530-6.Vogel, A.I.; J. Mendham (2000). Vogels Textbook of Quantitative Chemical Analysis (6th ed.). Prentice Hall. p. 423. ISBN 0-582-22628-7.

Thursday, November 21, 2019

Journal Entry Essay Example | Topics and Well Written Essays - 250 words - 9

Journal Entry - Essay Example This is an area where approximately five hundred Arapahoe and Cheyenne people encamped. The attack, which took place at down caught these communities by surprise and in an odd moment where most of the men were out hunting. However, the retaliation of the Cheyanne for this attack only furthered the aggression from the side of U.S troops. Unfortunately, since this was not an organized battle field but rather an attack, the casualties were the weak in the society and not the fighters. The attack claimed the lives of about a hundred and fifty Cheyennese and Arapahos. The majority were children, women and elderly people – who were not in a position to defend themselves. The most disturbing thing in this attack is that the Cheyenne chiefs, Black Kettle and White Antelope had attempted to establish a peace treaty. For this reason, they flew an American flag as an indication of friendliness. The attack and the atrocities that followed including mutilation of the dead bod ies by the Colorado troops was an illegitimate military operation. What angers me most in this event is that such atrocities could take place while the American flag and a white flag symbolizing peace were flying high. In addition, there were no charges against Chivington and his companions despite reliable eyewitness accounts from