Chemical Reaction of copper compounds Introduction: In this experiment‚ the objective was to conduct a series of chemical reactions that contain copper or copper compounds. That is to say that the products of each chemical reaction were used in the next reaction. The process starts with a solid copper wire dissolved in nitric acid and the end product is copper powder. The product which was used from the previous reaction is the limiting. In the initial step‚ the solid copper is the limiting reactant
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Analytical Chemistry Daniel C. Harris: 7-4‚ 8‚10‚12‚16 7-4) A 1.000g sample of unknown analyzed by Reaction 7-2 gave 2.500g of bis(dimethylglyoximate) nickel(II). Find the wt% of Ni in the unknown. 7-8) The man in the vat. Once upon a time‚ a workman at a dye factory fell into a vat containing a hot concentrated mixture of sulfuric and nitric acids‚ and he dissolved! Because nobody witnessed the accident‚ it was necessary to prove that he fell in so that the man’s wife could collect his insurance
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Class X Question 1: Chapter 1 – Chemical Reactions and Equations Science Why should a magnesium ribbon be cleaned before burning in air? Answer Magnesium is very reactive metal. When stored it reacts with oxygen to form a layer magnesium oxide on its surface. This layer of magnesium oxide is quite stable and prevents further reaction of magnesium with oxygen. The magnesium ribbon is cleaned by sand paper to remove this layer so that the underlying metal can be exposed into air. Question
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LITERATURE REVIEW 2.1. Concepts 2.1.1. Marketing Strategy Marketing strategy is a long-term course of action designed to optimize allocation of the scarce resources at the disposal of a firm in delivering superior customer experiences and promote the interests of other stakeholders. Scarce resources include monetary capital‚ human capital‚ technology‚ time. Beside‚ Marketing strategy is intimately tied with strategic planning – the process of creating a firm’s strategy. However‚ marketing strategy
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INTRODUCTION Bamboo‚ a plant with hundred of uses has long been associated with short life span products. Mankind has long exploited bamboos‚ like other lignocellulosic materials‚ for various purposes and reasons (Tewari & Bindhi Singh‚ 1979). They are used intensively for making a wide range of products such as house-hold items‚ handicrafts‚ paper‚ joss-sticks‚ barbecue sticks and chopsticks. It is one of the oldest light building materials used in the rural areas and villages due to its availability
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heated above a Bunsen burner. Continual stirring was required to reduce the “bumping”‚ or formation of bubbles that release gas very quickly that have the potential to cause injury. The balanced equation for this reaction is as follows: Cu(OH)2 (s) à CuO (s) + H2O (l) When the solution was heated‚ the bright blue precipitate
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oxygen was determined to be .1574. Afterwards‚ by dividing moles of copper over moles of oxygen‚ I determined that the molar relationship between Copper and Oxygen was 1:1. And‚ because of the molar ratio‚ the empirical formula was then found to be CuO. From the given information‚ I developed the balanced chemical equation for the
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Eat.Drink.Man.Woman. The movie‚ Eat‚ Drink‚ Man‚ Woman‚ tells the story about a widowed father and Chinese master chef Chu and his three daughters. It explores the themes of family‚ tradition‚ and relationships. The themes of family and tradition are highlighted throughout the movie by the reoccurrence of Sunday dinner. Mr. Chu prepares these elaborate dinners every Sunday for his three daughters. He puts these Sunday dinners together as an expression of his love for them because he has
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was fabricated. This involved mixing‚ mortaring‚ and sintering of Y2O3‚ BaCO3‚ and CuO powders. Prior to mixing the powders‚ the correct stoichiometric composition was determined. This was done by relating the molar masses and molar compositions of the three powders and the desired product‚ YBa2Cu3O7. Below are the calculations required for fabrication of YBa2Cu3O7.Y2O3 = 225.82 g/mol BaCO3 = 197.33 g/mol CuO = 79.55 g/mol YBa2Cu3O7 =
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INTRODUCTION: Carbohydrates are the product that made up from carbon‚ hydrogen and oxygen. Carbohydrates are form by the combination of carbon dioxide and water molecules. The carbohydrates contain two specific functional group in it which is the hydroxyl groups and carbonyl groups.A reducing sugar is a type of sugar with is an aldehyde group.This means that sugar can act as a reducing agent.The procces of reducing sugar is isomerisation‚example of reducing sugar islactose
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