Abstract: This report is a description of an experimental determination of the enthalpy of reaction of sulfuric acid in a reaction with magnesium to produce magnesium sulfate. Through the use of an ice calorimeter‚ the rxn H° D for this reaction is determined to be 1 360kJ mol − − × . Introduction: This report details an experiment in thermochemistry. Included are the methods‚ results‚ and interpretation of results of an experimental determination of an enthalpy of reaction. The reaction
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1. How many Polar bear cubs are swimming in the ice-hole? a. 3 b. 9 c. 6 d. 12 2. Two spaceships are approaching the planet Gizmo from exactly opposite directions. Spaceship Alpha receives a message from spaceship Beta giving its speed of approach and indicating that it is 1/10th of a light-year distant from Gizmo. Alpha replies that it is only half as far from Gizmo but is approaching the planet at half of Beta’s speed. Which spaceship will reach Gizmo first? a. Alpha
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7/16/12 Heat of Fusion Heat of Fusion for Ice Introduction: This lab report is a step by step process in calculating the heat of fusion for ice and to compare the differences between salt added to room temperature water and salt added to icy water. To calculate heat of fusion‚ one must understand heat of fusion. Heat of fusion is the amount of heat required to convert a mass of a solid at its melting point into a liquid without an increase in temperature. As difficult as this may sound‚
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Describing Places: Seoul Being the capital of Korea since the 14th century‚ Seoul (서울) is one of the most popular tourist destinations located in the west of its country. Packed with countless sights and places to visit‚ ranging from royal palaces to trendy shopping centre‚ Seoul is a city with so much to offer that tourists might not know where to begin. The streets of Seoul are always jammed with people as there are endless varieties of restaurants‚ cafes‚ shopping centres‚ discos available
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Our Iceberg is Melting is a story of penguins who are very comfortable with their present existence until a curious penguin named Fred discovered one day as result of curiosity that their iceberg was melting. The iceberg was the foundation of the penguins’ existence and without it they would perish. Fred had the courage to inform Alice who is a member of the Leadership Council about condition of the iceberg. Alice was a penguin who got things done and would listen to Fred. Fred had the opportunity
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No. Square. Cube. Sq. Root. CubeRoot. 1 1 1 1.0000000 1.000000 2 4 8 1.4142136 1.259921 3 9 27 1.7320508 1.442250 4 16 64 2.0000000 1.537401 5 25 125 2.2360680 1.709976 6 36 216 2.4494897 1.817121 7 49 343 2.6457513 1.912931 8 64 512 2.8284271 2.000300 9 81 729 3.0000000 2.080084 10 100 1000 3.1622777 2.154435 11 121 1331 3.3166243 2.223930 12 144 1728 3.4641016 2.239429 13 169 2197 3.6055513 2351335 14 196 2744 3.7416574 2.410142 15 225 3375 3.8729833 2.466212 16 256 4096 4. 0000000 2.519842 17
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The Melting Pot For hundreds of years‚ people have been immigrating to America. The list of reasons for this action can be infinite. The most common motive is to begin a new life. Inhabitants from all over the world desire to move to such a great country. This is because there are so many great opportunities in this country that can help people live a great life. Therefore‚ America is the blender and transcender of ethnicities because of language‚ social norms‚ and food. In the states‚
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Lab #1: Melting Points of Organic Compounds Report Form May 15‚ 2014 1. A “Melting Point Range” refers to the range of temperature at which a solid melts into its liquid state. 2. Pure compounds have narrow or ‘sharp’ melting point ranges‚ 1°C or less if the compound is very pure. A less pure compound exhibits a broader melting point range‚ between 3°C to 10°C as well as a depressed or lower range. 3. Crushing the sample allows for greater surface area-to-volume ratio of the powder‚ this
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’ T he -Laughing Clowns coffee shop is situated in a rural city of Australia. The population is approximately 25‚000‚ yet this figure fluctuates markedly as a major university is situated in the town. The university has a large contingent of external students who fillthe population g~\Pleft by the internal students when they are on term breaks. There are seven coffee shops in the ll)Wn‚‚111d each of them has its own special atmosphere. The Laughing Clowns has been in existe.nce for ten
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Melting Range Report Name: Date: Lab Section: Selected Known Compounds Name Structural Formula Literature Melting Point Acetanilide C8H9NO 114.3°C Fluorene C13H10 116.5°C Experimental Data Sample Composition 1. 100% Acetanilide 2. 10% Acetanilide 3. 25% Acetanilide 4. 50% Acetanilide Fluorene 5. 75% Acetanilide 6. 90% Acetanilide 7. 100% Fluorene Melting Range 108-116°C 108-112°C 105-112°C 102-109°C 105-112°C 109-115°C 108-114
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