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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DETERMINATION OF THE THICKNESS OF ZINC ON A PIECE OF GALVANIZED METAL Department of Biology‚ College of Science‚ University of the Philippines Baguio ABSTRACT The experiment was performed to be able to determine the thickness of zinc on a piece of galvanized metal. It also aimed for the students to be introduced to the reactivates of metals with acids as well as for them to develop some feeling for the size of an atom. In determining the thickness of the zinc coating on the metal‚ students
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“America’s Gift to my Generation” America has given my generation‚ many gifts including‚ keeping us safe. First‚ the military defend my country from our enemies. Second‚ many men and women that have come together served in wars and saved my country. Lastly‚ the military has helped us by sacrificing their lives for ours‚ defending rights and freedom‚ and sheltering us. The military sacrificed their lives for us. Soldiers sacrificed their lives to keep us safe. Them sacrificing their lives for is
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Experiment 4A – Counting Atoms in a Chemical Reaction Purpose: The purpose of this lab is to create an experiment where zinc reacts with hydrochloric acid in order to find out the number of moles and atoms of zinc reacted. This can be accomplished by weighing the sample before and after the reaction with hydrochloric acid. Data: Material Mass in grams (g) Initial mass of dry beaker 49.37 Initial mass of dry beaker + zinc 51.03 Initial mass of zinc 1.66 Final mass
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America’s gift to my generation Do you know when our national anthem first came to be the official anthem of the United States of America? The anthem was written by Francis Scott Key and became the official American anthem on March 3‚ 1931. America’s gift to my generation is freedom of expression. Freedom of expression means we have the right to express our opinions in many ways. Currently‚ the professional football players of our nation seem to be using their freedom of expression to‚ in
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Prashant Zanwar University of Central Florida I. Introduction To Maglev Technology And Application 1.1 Principle of Maglev System Maglev is a system in which the vehicle runs levitated from the guideway (corresponding to the rail tracks of conventional railways) by using electromagnetic forces between superconducting magnets on board the vehicle and coils on the ground. The following is a general explanation of the principle of Maglev. fig. 1.1 1.1.1 Magnetic Levitation The "8" figured levitation
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America’s Gift to My Generation-Rough Draft In America‚ freedom is the gift to my generation. Speak freely‚ vote‚ or purchase whatever you want. It’s a responsibility such as driving safely‚ keeping a job‚ and serving in a jury with other citizens. Freedom is a choice of who you want to be‚ where you want to work hand‚ and how you will act in this world is it true that this world is it true that this precious gift‚ this box loaded with golden treasure‚ has been paid for by the sacrifice of others
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What would happen nowadays without cars? How would it be to use everyone public transport? Cars are the answer to our needs to be independent of each other and to travel freely wherever we want. History The cornerstone of the BMW empire dates back to 1916 in Munich‚ when Franz-Josef Popp and Max Friz set up Bayerische Flugzeug-Werke (Bavarian Aircraft Industry) on March 7th. Thus‚ contrary to expectations‚ the beginnings of BMW consisted of the production of aircraft engines‚ not cars. Two years
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America’s gift to my generation is all the rights that we have. This is a gift because not all countries give their citizens rights. One right we get is the right to education. This is a gift because if we did not have a right to education we would not be able to do as much good in the world. Getting a right to education is essential‚ which is why I think the U.S gives children the right to education. This right also gives all children a chance to learn and do great things. The right to education
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are people who broke the laws in the first place. There are several weaknesses in the way that Zimbardo designed his study experiment. One was that his sample didn’t successfully represent the population. There were a total of twenty four participants‚ of which were generally white male college students from the middle class. The second weakness in Zimbardo’s experiment was that it was influenced
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