Procedure Access the virtual lab and complete the experiments. Answers in blue Part One (Flame Test): 1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame Element | Color of Flame | Barium | Lime neon green | Calcium | Red | Sodium | Yellow | Rubidium | Purple | Potassium | Blue | Lithium | Dark Pink | | | 2. Identify each unknown from Part One of the lab and
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112 Section 02 4/02/2013 Abstract A sample of soil was tested for possible contaminants and other information using a variety of techniques including moisture analysis‚ pH measurement‚ acid-base titration‚ chloride-ion electrode analysis‚ and flame testing. The sample had a greater concentration of chloride ions‚ no measurable CaCo3 ‚ and lower than standard moisture content. It was contaminated with KCl and likely HCl ionic solids. Introduction Soil is a vital component of any environmental
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Hydrocarbon `X` and `Y` having molecular formulae C3H8 and C3H6 respectively. Both are burnt in different spatula on the Bunsen flame. Indicate the color of the flame produced by `X` and `Y`. Identify `X` and `Y`. Write the structural formulae. 4. A compound `X` has molecular formula C4H10. It undergoes substitution reaction readily than addition reaction. It burns with blue flame and is present in LPG. Identify `X` and give the balanced equation for its combustion and substitution reaction with Cl2
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because of its more energy output. Microcombustion is a potential energy source for small devices like unmanned vehicles and micro satellites .It is to be carried out in a miniature device called Microcombustor which is typical of 1mm diameter. Flame extinction is the biggest disadvantage of Microcombustion as heat losses become more important at smaller scales. So in order to maintain the balance between heat generated and heat lost through a Microcombustor‚ properly designed Microcombustor
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Combustion Of Alcohols Planning This investigation involves burning alcohol in the air. Key science- Chemistry by Eileen Ramsden says that " an alcohol is a series of organic‚ homologous compounds‚ with the general formula Cn H2n+1OH". The alcohol reacts with the oxygen in the air to form the products water and carbon dioxide: Cn H2n+1OH +(n+n/2)-1O2 ? nH2O + nCO2 The structure of the molecules in this reaction is: H H | | H - C - C - O- H + 3[O=O] ? 1/2[O=C=O] + 3[H-O-H] | | H H This reaction
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his words. In a letter to Ernest Collings dated Jan. 17‚ 1913‚ Lawrence writes: "I conceive a man’s body as a kind of flame‚ like a candle flame‚ forever upright and yet flowing: and the intellect is just the light that is shed on to the things around. And I am not so much concerned with the things around--which is really mind--but with the mystery of the flame forever flowing‚ coming God knows how from out of practically nowhere‚ and being itself‚ whatever there is around it‚ that it
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Robert Gray is a weaver of images‚ at the loom of the mind. He creates sensual images that elicit and evoke responses from the responder. His poems ’Meatworks’ and ’Flames and Dangling Wire’‚ both social commentaries‚ exemplify techniques he calls upon in order to reproduce the personas feelings‚ emotions and thoughts through powerful images. Assonance and alliteration are employed by Gray to increase the memorability of an image‚ leaving it lingering in the responders mind. He uses these techniques
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form rapidly‚ warm the test tube for a quick second in the hot water bath that you prepared and the take it out and let It cool. Then to get additional information for Ca2+ a flame test is recommended. Dissolve the precipitate in 6 M HCl and perform a flame test. A orangish color appears when the eraser is placed into the flame would be characteristic as
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Reflection (physics) From Wikipedia‚ the free encyclopedia The reflection of Mount Hood in Mirror Lake. Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light‚ sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected
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I. Title: Combustion of Acetylene II. Purpose: To prepare acetylene and determine the ratio of the volume of acetylene to the volume of oxygen for complete combustion. III. Materials: 1000 mL beaker Tap water 4 large test tubes calcium carbide (CaC2) googles and apron matches IV. Procedure: 1) Fill a 1000 mL beaker ¾ full of tap water. 2) Obtain 4 large test tubes. 3) Fill the first test tube 100% full with tap water. Fill the 2nd test tube 50% full‚ the 3rd 25% full‚ and the 4th test
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