PR OCEDURE Before beginning‚ set up a data table similar to the Data Table: Experiment Results in the Lab Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium
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The 1950’s were quite radical in fact‚ this is the decade that began rock n’ roll‚ the civil rights movement‚ better family living‚ advances in technology‚ Fashion‚ medical research‚ other wonderful things this country was not used to seeing or hearing. The 1950’s were looked at more as a state of mind or a way of living rather than just another decade or time era in American history. Everything was peaceful now‚ which looking back on the two world wars and the great depression this country was not
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Axia College Material Appendix B Security Assessment Directions: Choose one of the Facts for Consideration sections from Ch. 3 of the text and list the page number for the section you chose. Then‚ complete the following table. List five threats appropriate to the environment from the section you chose. Rate the risk for each threat from 0 (low) to 10 (high). Then‚ list five appropriate countermeasures. Once you complete the table‚ write a brief explanation of the countermeasures for the
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conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme Concentration were the conditions tested in the experiment. Each lab was assigned to a group A‚ B‚ C and D in our class performed this experiment. The data presented in this report will reflect the average rates of change in O2 ml/min of our class results. In the later discussion sections‚ it will become
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participated in Global Market. I. Transferable Business Model M& S is Build Partnership on Value‚ Trust‚ Quality‚ Service and Innovation. With its failure in French market with clothing line‚ M&S had to rethink their business model and locally adapt to the needs of the customers. ‘Plan A’ was launched with the intension to change the perception of people regarding M&S being just a British Brand thereby using transferable business model. M&S is using environmentally friendly practices to conserve the
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(aq) NH3+ + H+ + Cl- →NH4+ + Cl- NH3+ + H+ → NH4+ H+ + OH- → H2O (l) ∆H= -54.0 kJ/mol NH4++ OH- → NH3+ + H2O (l) (x-1) ∆H=-4.09 kJ/mol (x-1) -54.0+4.09=-49.9 NH3+ + H+ → NH4+ =- 49.9 kJ /mol (-49.9- -26.2)/-49.9 x 100 =47.3% Lab Questions: Pre: 1. The change in thermal content in a reaction 2. The amount of energy needed to change one gram of a substance 1 degree C 3. (50 mL)(1.02 g/mL)(4.18 J/g C)(25.3-21.4) = 830 J 4. 830J+8.20J/g C(25.3-21.4)= 860J 5. .25L(.6mol/1L)+
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May 28‚ 2013 Chemistry 36100 Introduction The purpose of this lab was to produce benzoic acid by mixing sodium benzoate with hydrochloric acid. The Hydrochloric acid used in the experiment was a stock solution made by mixing HCl Acid and deionized water. HCl acid‚ historically called‚ muriatic acid or spirits of salt‚ hydrochloric acid is produced from sulfuric acid and common salt‚ NaCl (Princeton.edu). Since the early 1900 ’s‚ sodium benzoate has been used as a food preservative (SolarNavigator)
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OCEAN COUNTY COLLEGE OFFICIAL COURSE DESCRIPTION DEPARTMENT OF SCIENCE AND ENGINEERING 1. Course Number and Title: CHEM-181 General Chemistry I 2. Semester Hours: 4 Contact Hours: (3 + 2) Lecture Lab 3. Catalog Description This course‚ intended for science majors‚ is the first course of a two-course sequence. Course topics include stoichiometry‚ inorganic nomenclature‚ solutions‚ gas laws‚ thermochemistry‚ atomic structure‚ and chemical bonding. The laboratory work includes
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Kristy Breitling-MUS 222 1960’s March 17th‚ 2013 Who has not heard of Woodstock or psychedelic music? What is it you think of when you hear of these? Free love‚ hippies‚ peace‚ and drugs. Well this was the end of the 60’s an era where musicians believed drugs gave them the ability to make their songs and how they sounded. This era came right after an era of civil rights movement‚ war and the world in an uneasy place for the population. In the First World‚ Rock ’n’ Roll‚ Pop music‚ Swing music
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Social Aspects of the 1920s The 1920’s were the time in American history where there was rapid change in culture‚ artistic innovations were happening‚ rebellious behavior occurred‚ and a huge economic boom. After being exhausted with trying to be noble and having proper behavior‚ America‚ in the 1920’s had a decade of this social outbreak from the moral restrictions of the past generations. In the 1920’s‚ on top of the social status were the upper class‚ or Fitzgerald referred to
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