Burn‚ Baby‚ Burn: Comparing the burning speed of scented and unscented candles This experiment was performed to compare how quickly a scented and an unscented candle will burn. The tests were done by comparing the length that the candles will burn in 30 minutes - using unscented‚ rose scented and apple scented candles. Hypothesis: Unscented candles burn more quickly than scented candles. Overview: Candles Candles are a convenient way of providing light and heat when no electricity is available
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Abstract This lab is performed in order to determine the total energy in a reaction between zinc and hydrochloric acid. The reaction is done twice‚ once to measure the heat of the reaction and again to determine the work done in the system. This is because Enthalpy equals heat plus work (∆H= ∆E+W). Heat and work can be broken down further into separate components so the equation used in lab is ∆H=mc∆T + PV. Many calculations are used in the lab to find out what cannot be measured directly (ex:
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Sabrina Gournaris Period 3 March 27‚ 2012 Marshmallow: The Snack That Acts Like A Gas Objective: Record and observe marshmallow and compare it to Boyle’s law. Materials: -2 mini marshmallows -1 syringe -A pen Experimental Procedure: 1. Take out marshmallow. 2. Draw face on marshmallow. 3. Open stopcock. 4. Pull plunger out. 5. Put marhmallow in syringe. 6. Put plunger back into syringe
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PULSE OXIMETRY Submitted by: Joshua Martin Rhoanne Feleo Submitted to: Mrs. Fontanilla Pulse Oximetry What is a Pulse Oximeter? * A Pulse Oximeter is a device used to perform the diagnostic procedure for determining the: * Percentage of hemoglobin (Hb) that is saturated with oxygen The oxygen
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Looking for a Gas Gas is everywhere. There is something called the atmosphere. That’s a big layer of gas that surrounds the Earth. Gases are random groups of atoms. In solids‚ atoms and molecules are compact and close together. Liquids have atoms that are spread out a little more. Gases are really spread out and the atoms and molecules are full of energy. They are bouncing around constantly. Gases can fill a container of any size or shape. It doesn’t even matter how big the container is. The
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Introduction Achieving a satisfactory comfort level for pilot and passengers is a primary goal when developing any aircraft environmental control system. Methods to meet this goal will differ depending on the size of aircraft‚ due to the changing volume of airflow there several way for air condition system for a aircraft. The best choice for small aircraft vapour cycle cooling system(VCCS) been used. Vapour cycle refrigeration is the predominant means of air-conditioning in small - and medium-size
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Design: Investigation of Fermentation Introduction Introduction Yeast (Saccharomyces)is a single-celled microorganism in the Fungi family. It anaerobically respires sugars to produce ATP‚ as well as the waste products ethanol and carbon dioxide gas. This process is known as fermentation. There are various factors that affect the rate at which yeast respires. Aim To investigate the effect of concentration of table salt (sodium chloride) on the rate of fermentation of sucrose using yeast‚ measured
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following statements about crystalline and amorphous solids is TRUE? A) An example of a crystalline solid is glass. B) An amorphous solid is composed of atoms or molecules with a majority of its volume empty. C) A crystalline solid is composed of atoms or molecules arranged with long-range repeating order. D) An example of an amorphous solid is table salt (NaCl). E) All of
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Thermal Expansion Experiment No. 2 *Santos‚ Patricia Mary O. Aquino‚ Junior Emil S. Bautista‚ Jennina Besana‚ Carra Sophiya Lime‚ Jerricson III-32 BSE General Science July 02‚ 2012 Abstract This experiment is done to determine the temperature coefficient of linear expansion of different materials. The different temperature coefficient is obtained through the use of an apparatus for measuring the linear expansion. The PASCO Thermal Expansion Apparatus was use to measure the thermal
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This experiment will test the suggestion that the enthalpy change between a metal and a solution of a salt is related to the relative position of the two metals in the reactivity. Presumably the further apart in the series the bigger the enthalpy change will be. The experiment is as follows‚ 1) Zn(s) + CuSO4(aq) ZnSO4(aq) + Cu(s) 2) Zn(s) + Pb(NO3)2(aq) Zn(NO3)2 (aq) + Pb(s) Both of the solutions will be in 1mol.dm-3 Apparatus: Distilled Water Polystyrene Cup
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