PREPARATION OF TIN TETRAIODIDE 09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the recovery
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Tin container testing Following are the different tests that are performed: 1) Temper Test: Standard: IS 1993- 1982 Take the sample strip of 90mm width. Carry out the ‘zero setting’ on Erichsen Testing machine. After zero setting‚ clamp the dial by tightening the screw. Insert the sample strip in machine and lock it by test piece holder. Confirm the light arrangement and the mirror is placed on its respective position. Switch on the lamp. Rotate the back screw at uniform speed‚ so that
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The Brave Tin Soldier by Hans Christian Anderson a short story of the experience of a tin soldier. In the beginning of the story there are 25 tin soldiers made out of one tin spoon in a tin box. One of the tin soldiers is different from the others; it only has one tin leg to stably stand on. Throughout the story the soldier faces many problems because he has one leg. But‚ regardless falls in love with a ballerina who is also standing on one leg near a castle. The themes of this story are multiple
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Jarrett Sears Dr. Hummel Chem 121 2/7/13 A Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First‚ obtain a clean crucible‚ and heat it under a Bunsen burner until it is as hot as possible‚ about 15 minutes within a fume hood unit. The Bunsen burner will be used under the fume
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place during the Great Depression‚ the author might want its audience to know that the characters are living under a poor environment. In the story‚ "The Lamp at Noon"‚ the author situates the story at a farm that has no crops growing due to years of droughts and sand storms. The storms are so intense that a lamp must be lit even at noon. During the story‚ the setting has contributed to
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Bui Tin Bui Tin who served on the general staff of North Vietnam’s army received the unconditional surrender of South Vietnam. Tin later became the editor of Vietnam’s official newspaper‚ the “Peoples Daily”. Tin then immigrated to Paris after becoming disillusioned with the fruits of Vietnamese Communism. Following Ho Chi Minh allows the reader to gain valuable insight into how the North Vietnamese forces planned and executed the war‚ through military and psychological strategies. Bui Tin effectively
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a new understanding of that individual’s life and personal experiences. In “The Lamp at Noon” by Sinclair Ross‚ the relationship between Paul and Ellen is strained. They are mentally isolated from each other. Paul becomes accustomed to this isolation and does not understand Ellen’s need for companionship and purpose. In order for Paul to understand Ellen’s world‚ he must first overcome the barriers set between them. The wind is used to represent the characters’ conflicts; both within themselves and
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The Lamp at Noon is a short story written by Sinclair Ross; it is a story of a couple and their baby living in a farm. One might think that these two works are quiet different‚ which is true‚ nevertheless‚ there are also similarities‚ all of which can be illustrated if one compares their themes in terms of gender discrimination against woman and man‚ sacrifice can improve a situation and nature destroys man. To begin‚ the novel To Kill a Mockingbird and the short story The Lamp at Noon have commonalities
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you cannot catch a good break. The Brave Tin Soldier‚ by Hans Christian Andersen‚ represents just this. Throughout the entire story‚ a tin soldier is plagued with many difficulties and setbacks from the time he was created. This soldier can relate to a great amount of men‚ women‚ and children; specifically those born with disabilities. Although these disabilities may be very prominent‚ that does not mean one cannot overcome them and become great. The tin soldier‚ for example‚ was very poor‚ missing
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Tin Pan Alley The 1920s was the beginning of a decade of change in the American arts. Jazz‚ along with such inventions as the phonograph‚ radio and sound movies‚ transformed the music industry. By the end of the decade‚ 40% of all Americans had radios in their homes. Not surprisingly‚ 58% of households in New York City owned a radio. New York became the center of the music world‚ and at the center of New York was a small area called Tin Pan Alley. Radios initially provided the young century’s second
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