Chemistry 2500- Exercise C4 The Emission Spectrum of Atomic Hydrogen Objective The purpose of this lab was to calculate an experimental value for the Rydberg constant and then the ionization energy for the hydrogen atom. These values will be obtained by using a prism spectrograph to measure the wavelength value for a section of the visible line spectrum of atomic hydrogen. Theoretical Background When H+ combines with an electron it forms it’s excited state‚ H. This excited atom
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A few years after the Japanese attack on Pearl Harbor‚ Truman and the US military responded with dropping two atomic bombs on Hiroshima and Nagasaki. Hard decisions were made with this war strategy and some important lessons were learned from this. Based on the circumstances‚ the US was justified in military action against Japan‚ however; dropping atomic bombs on Hiroshima and Nagasaki shouldn’t have happened. Thousands Civilians were killed over two cities of no real importance in gaining ground
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FUNCTIONS OF MONEY Money is something that people use every day. We earn it and spend it but do not often think much about it. Economics define money as any good that is widely accepted as final payment for goods and services. Money is so common that we rarely think about what it is. The characteristics of money include durability‚ divisibility‚ portability‚ and scarcity. Money acts as a unit of account‚ medium of exchange‚ and a store of money. First money is a store of value. Store of value
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A Modern Life with Modern Technology Research Writing/COM220 July 4‚ 2010 Rowland Cadena While modern technology has made life more accommodating with cell phones‚ computers and iPods‚ technology has also made it more convenient for hackers and other Internet predators. For people with family and friends that live far away‚ a web cam and the Internet makes it simple to keep in touch. E-mailing and other social networks available on the Internet also make it effortless to talk to someone halfway
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Logann Stambaugh Mrs. Kohn English II 24 March 2014 Final Copy Atomic Bombing The bombings of Hiroshima and Nagasaki are still considered two of the most devastating bombings ever seen in mankind. There is uncertainty over the rationality and judgment of President Truman’s reasons for releasing the bombs‚ as well as the thought process on the mortality of the situation. However‚ there is no doubt that this was a difficult decision to make. The United States is still paying for this cataclysmic
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MODERN DAY FARMING Introduction The daily pleasures of gardening are simple‚ inexpensive and profoundly satisfying. But in the ever-increasingly dense and sprawling cities‚ gardening on rooftops‚ patios and balconies is the only way to transform them into livable spaces that are lush‚ productive and purifying. Imagine picking a head of lettuce that was cultivated in your rooftop‚ or taking in the morning perfume of a flower in your balcony‚ or biting into a strawberry warmed by the sun…. Although
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Trafficking is a form of modern slavery that exists throughout the united states and globally. This uses violence‚ lies‚ threats and other forms of coercion to compel adults and children to participate in commercial sex against their will. Under U.S. federal law‚ any minor under the age of 18 years induced into commercial sex is a victim of sex trafficking—regardless of whether or not the trafficker used force‚ fraud‚ or coercion. Unfortunately‚ there are thousands of children and adults who
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The book The Girls of Atomic City by Denise Kiernan is the story of the young women and men who worked in secrecy on a project unknown to them‚ which would help end World War II. Ms. Kiernan is an author and journalist who has written several historical titles. She is writing this book from the viewpoint of a historian interested in women’s roles in World War II history. In this book‚ Kiernan describes how young women came from all over the US traveled to Oak Ridge‚ Tennessee to work for Clinton
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Introduction Atomic Absorption Spectrometer (AAS) is an analytical equipment commonly used for the detection of heavy metals in particular sample. The first step to analysis in the AAS is the atomization of the desired element by converting it to a gaseous state. The atoms then absorb the energy emitted from the hollow cathode lamp corresponding to the desired element and a detector reads the signal and records the results. The results may be used quantitatively or qualitatively depending on the
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In 1945‚ when the atomic bomb was dropped in Japan I felt that it was not justified. Even though it saved thousands of American lives it was at the cost of others lives. The United States could have gave the Japanese a warning before dropping not one‚ but two bombs on them. However‚ the Japanese did not surrender until after the second bomb I think a warning would have made the bombing “justified.” To begin with‚ even though the United States and Japan were at war and were protected their own citizens
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