9/30/2012 AP Chemistry Lab Report I. Introduction: a) Title: The Establishment of a Chemical Equation Using the Method of Continuous Variation. b) Purpose: the continuous variation method is used to establish a chemical equation by displaying on a line graph the change/difference in temperature caused by the composition of acids and bases in the solution. II. Apparatus and Materials:
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Using the Iodine clock method to find the order of a reaction Introduction When peroxodisulfate (VI) ions and iodide ions react together in solution they form sulfate (VI) ions and iodide. This reaction is shown below: S2O82-aq+ 2I-aq SO42-aq+ I2(aq) The reactants and the sulfate (VI) ions are colourless however the Iodine is a yellow/brown colour. This allows you to measure the progress of the reaction through the colour change when the iodine is produced. In order to determine the order of
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LAURA (Preminger‚ 1944) TIME The narrative action in the film Laura occurs over a period of three days. It begins on a Sunday morning‚ two days after the murder takes place in Laura’s apartment. The narrative begins on this day because this is when Detective Mark McPherson begins his investigation of the case. Being the protagonist of the film‚ we follow him in his quest to solve the case and his pursuit of Laura. It is on Tuesday night that he succeeds in what he set out to do and therefore‚ the
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Whether it be from a reporter or the actual soldier himself these stories touch the hearts of not only veterans but citizens young and old. A great example of one of these riveting true war stories would be the story of Louis Zamperini. Written by Laura Hillenbrand and even created into movie Unbroken shows just how hard
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Subject: Chemistry SL Title: Preparation of a salt (lead iodide) by using precipitation method. Aim: To produce 1.50 g of lead iodide‚ PbI2‚ assuming 100 % conversion‚ using 1.00 g solid potassium iodide‚ KI‚ and 0.1 M lead nitrate‚ Pb(NO3)2 solution of volume 30 cm3 and hence calculate percentage yield. Calculations: 2KI(s) + Pb(NO3)2( aq) —> PbI2 (s) + 2KNO3 (aq) Mass of PbI2 to be produced = 1.5 g Moles of PbI2 = = 0.003 Moles of KI = 0.003*2 = 0.006 Mass of KI = 0.006*166 = 1.00 g
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OBJECTIVE: * To determine the molecular weight of a volatile liquid by using Dumas method. METHOD: MATERIAL | CHEMICALS | 125 mL Erlenmeyer flask | Known liquid (2-propanol) | Rubber band | Unknown liquid | Boiling chips | | Watch glass | | 100 mL graduated cylinder | | Pin | | 600 mL beaker | | Hot plate | | Thermometer | | Room temperature water | | 6 × 6 and 8 × 8 aluminium foil | | PROCEDURE: SAFETY * Lab Coat and Safety Goggles. * Keep the bottles
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When doing research nurses have come up with theories to expand nursing practice and these theories help ideas to be composed. Theory backs and puts forward research problems‚ research discoveries confirm or disprove theory explanations‚ as stated by Borbasi and Jackson‚ (2012).The research article that I have chosen for this assignment is from International Journal of Nursing Practice. It is a qualitative study that was written by King and Walsh‚ (2007) and the topic is ‘I think PCA is great‚ but
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Laura Ashley Plc . is a small family company with very specialised products spread in the Europe ‚ UK and US . Started by the Ashleys in 1953 the company kept on embracing new products and companies and integrated vertically . The key for the significance and the competitive edge of the company was the design philosophy of Laura Ashley . Although the company faced a shock after the death of Laura Ashley but the company followed the line of Laura ’s designs . By 1985 the company established
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Soliloquy of Guy Belling field – Posh Guy. Guy Bellingfield. Yeah that’s me; Aspiring president of the infamous Riot Club. Tonight lads this glorious return is going down in fucking history I can put my money on it. But there’s just one slight problem... I’m pretty stuck for ideas which is peculiar because I’m awesome and I’m not going to let any of these idiots especially that foreigner Dimitri‚ fuck this up for me. Who does he think he is? Prancing around the grounds of where I’m about to
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EXAMPLE : USING MIXED METHOD: BOTH QUALITATIVE & QUANTITATIVE RESEARCH QuickStop Convenience Stores Background Once upon a time there was a successful line of convenience stores. We’ll call this group of stores "QuickStop". At some point a staff-member realised that QuickStop seemed to be patronised by many more men than women. This was passed along to the management team and they asked the store tellers to informally keep track of the proportions of men to women who came into their stores.
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