Quantitative Analysis Finding the Percentage Composition of Nickel in an Unknown Compound Introduction: This section of lab was about using analytical chemistry and learning how to identify the amount of nickel in an unknown substance. The purpose was to use gravimetric analysis to quantitatively separate and weigh insoluble reaction products as well as utilize the mole method to compute the amount and percentage of nickel in an unknown nickel sample. The chemical reaction that took place involved the
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Experiment 5- Standardization of NaOH and determination of Molarity of an unknown Acid Objectives 1. Preparation and standardization of a 0.1M NaOH solution 2. To learn the technique of titration 3. Determination of the concentration of an unknown diprotic acid. Introduction Titration can be traced to the origins of volumetric analysis‚ which began in the late eighteenth century. Study of analytical chemistry began in France and the first burette was made by Francois Antoine Henri
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rebuild the body with the body parts that are remaining. If so‚ different bones can identify things such as sex‚ race‚ and age. Leg or arm bones can determine stature and weight. Also‚ any pathology of the skeleton must be start in order to make an identification of the remains‚ determine the cause of death and‚ if homicide is involved‚ could even identify the murderer. Taking into account while
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1)What is Osborne’s theory on Newfoundland’s identification with Ireland? Osborne theory on Newfoundland’s identification with Ireland is that they became accustomed to the irish culture because it was something that in some way countered of “British imperialism and Canadian modernity”. 2)What is Osborne’s plan for the article? Osbourne ultimately plans to show how the evolution of music influence a cultural revolution and give significance to sense of place in a certain area. Osborne’s plan for
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Hello‚ I’m Caroline Woodle and I feel that I would be a propitious member of National Honor Society. This organization does an incredible job of recognizing students who are leaders in their communities. In my opinion‚ the most influential part of a person is their character. Activities such as competitive dance‚ FFA‚ and youth leadership events continuously reinforce my values of honesty and hardwork. Giving to and inspiring others are two of the most important parts of my life. Numerous Midwest
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Carlie Haeffner Qualitative Analysis March 20‚ 2015 The purpose of this lab is to identify unknown ions in a solution by using a type of chemical reaction called precipitate reactions. The key to finding which ions are present in a solution is to form a precipitate which makes the ions “come out” in a reaction (McNeil‚ 2013-2014). Water is used in these experiments to act as a solvent. Since water is a polar molecule‚ the slightly positive and negative charges will sometimes pull apart molecules
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JIT‚ Kanban‚ Kaizen Contents • Just In Time (JIT) • Kaizen • Kanban 2 Contents • Just In Time (JIT) • Kaizen • Kanban 3 What is JIT • A philosophy of manufacturing based on Waste Identification and Planned Elimination to achieve continuous improvement in productivity. • It’s a philosophy not a technique Emergence of JIT • Evolved in Japan after world war II‚ as a result of their diminishing market share in the auto industry. • First developed & perfected within
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Character Identification: “A Rose for Emily” 1. Emily Grierson: Generally referred to as Miss Emily‚ she’s described as “a small‚ fat woman” who‚ before dying lived in a modern town full of people who viewed her as a distant woman who lived in her past. She is portrayed as a very mean‚ stubborn old woman‚ however as the story unfolds‚ she is viewed more as a kind character whose story could not be fully understood. 2. Colonel Sartoris: A former mayor of Jefferson. He nullifies Emily of any
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Determining the Unknown Concentration of NaHCO3 (aq) Through Titration Introduction Titration is the accurate addition of a titrant- solution in a burette- into a measured volume of a sample (Kessel‚ 2003). There are many different types of titration‚ such as acid-base reaction‚ redox reactions‚ precipitation reaction and more (Dohrman). In this lab an acid base titration will be explored. In an acid-base titration‚ the concentration of an acid or base is unknown and is determined by the adding
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Scheme of Analysis for Lab 2 Unknown Sample Description Phase‚ color‚ odor‚ crystalline or gel-like? If crystalline‚ what is crystal shape – needle-like or powdery? Does it look like a pure substance or a mixture? How many components appear to be present? Tests on original sample Flame Test Bushy yellow‚ orange flame – Na+ is present and possibly K+ and NH4+. Pink-purple flame – K+ is present and Na+ is not. (Possibly NH4+) No color or faint trace Na+ - NH4+ is possible‚ K+ and Na+ are
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