The calculations completed for this experiment include determining the amount of Na2CO3 needed to do a full reaction. This was calculated through stoichiometry calculations: Molar mass was first calculated for CaCl2*2H2O Ca = 40.078g Cl2 = 35.453g*2 = 70.906g 2H2 = 1.00794g*4 = 4.03176g 2O = 15.9994g*2 = 31.9988g 40.078g + 70.906g + 4.03176g + 31.9988g = 147.01456g or 147.0 g CaCl2 1g CaCl2 * 2H2O x (1 mol CaCl2 *2H2O/147g CaCl2 *2H2O) = 0.0068 mol of CaCl2*2H2O Molar mass was then
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Biological Molecules: Carbohydrates‚ Lipids‚ Proteins By the end of this lab‚ the student should be able to: Identify the functional groups for each of the biomolecules that react in the following biochemical tests: Benedict’s test‚ Iodine test‚ Brown Bag test‚ Sudan III/IV test‚ and the Biuret’s Test. Describe the mechanism of reaction for: Benedict’s test‚ Iodine test‚ Sudan III/IV test‚ and the Biuret’s Test. Interpret the results when presented with data for each of the biochemical
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and grapefruit juice. Research: Benedict’s Reagent is a mixture of sodium compounds and copper sulphate. The copper ions are reduced by fructose (a reducing sugar) to form copper oxide‚ thus turning it from blue to a brick red/orange precipitate. The more red the precipitate is‚ the higher the concentration of reducing sugar in the solution tested. If more precipitate has formed‚ there are fewer copper ions remaining in the Benedict’s Reagent‚ therefore‚ the solution will appear less blue. This
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GOLDEN RATIO- maths project Index Serial no. chapter 1 | Introduction | 2 | History | 3 | In nature | 4 | In human body | 5 | In architecture | 6 | In art | 7 | In day to day life | 8 | SIGNIFICANCE | ACKNOWLEDGEMENT I would like to express my special thanks of gratitude to my teacher sonali durgam on the topic golden ratio‚ which also helped me in doing a lot of Research and I came to know about so many new things. I am really thankful
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Variable) | 1 Pipet‚ Graduated Jumbo (5 mL)(Dependent Variable) | 1 Distilled Water(Independent Variable) | 1 Potato(Independent Variable) | 2 Beaker‚ 50 mL Plastic(Dependent Variable) | 1 Test Tube(9)‚ 13 x 100 mm(Dependent Variable) | 1 Benedict’s Reagent - 15 mL in Dropper Bottle(Dependent Variable) | 1 Stove or Microwave(Independent Variable) | 1 Aluminum Foil 12 x 12 cm(Dependent Variable) | 1 Cylinder‚ 50 mL Plastic(Dependent Variable) | 1 Rod‚ Stirring rod – Glass(Dependent Variable) | 1 Sudan
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major science fiction film was released that the world was still going crazy about: this film was Starwars. Spielberg was smart enough to release that the world loved starwars so much that they would be able to appreciate and love the homage to George Lucas’ film Starwars. In E.T. The Extra-Terrestrial Elliot plays with Starwars figurines‚ which is something that many children of that decade also did. This allowed the audience to put themselves in the shoes of Elliot and imagine themselves becoming friends
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Mean Streets is Scorsese’s breakthrough film‚ his first financed by a major studio – Warner Brothers‚ though it’s not exactly a blockbuster-budget affair. Charlie‚ the film’s protagonist‚ struggles to maintain his sense of Catholic values despite being in the world of the petty Mafiosi – he’s not a made man by any stretch of the imagination‚ but he’s trying. He’s also a devout Catholic‚ who understands that “you don’t pay for your sins in church; you do it in the street – you do it at home.” He
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compound which acts as a reference in all titrimetric volumetric analysis. A secondary standard is titrants that is standardized against a primary standard or another standard solution and are used for certain types of analysis. A primary standard is a reagent that is extremely pure‚ stable‚ it’s not a hydrate/has no water of hydration and has high molecular weight. A primary standard is used to calibrate other standards referred to as working standards. Examples of primary standards for titration of acids
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Mathematics and art have a long historical relationship. The ancient Egyptians and ancient Greeks knew about the golden ratio‚ regarded as an aesthetically pleasing ratio‚ and incorporated it into the design of monuments including the Great Pyramid‚[1] theParthenon‚ the Colosseum. There are many examples of artists who have been inspired by mathematics and studied mathematics as a means of complementing their works. The Greek sculptor Polykleitos prescribed a series of mathematical proportions for
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Stoichiometry and Limiting Reagents Theodore A. Bieniosek I. Purpose and Theory The purpose of the experiment is to study and apply the processes of stoichiometric calculation on a controlled chemical reaction. We will be adding variable amounts of reactants in a chemical reaction in order to demonstrate the effect of limiting reagents. Based on the volumes of the reactants‚ and their respective molarities‚ we can calculate the theoretical yield of the reaction and compare it to the
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