necessary to produce a temperature change of 1°C per gram of substance. The specific heats of different substances vary‚ and therefore this quantity may be useful in identifying an unknown. The measurement of heat changes is called calorimetry. In this lab activity‚ calorimetry will be used to determine the specific heat of an unknown metal. This will be done by using a styrofoam cup calorimeter containing water. A calorimeter is insulated so as to minimize any loss of energy to the surroundings. Therefore
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Nicole Alexandria Hazelett English 1310 A. Fortkamp October 7‚ 2013 Guinness Beer Commercial When you cork off the top of a Guinness beer you inhale the smell of unroasted malted Marley. The smell and taste you experience gives you sense of satisfaction. The video persuades you that the types of individuals that drink this beer are ones who care and respect others. Individuals that believe that “The choices we make reveal the true nature of our character.” The introduction is
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Abstract: Two parts of this lab were performed involving photosynthesis and cellular respiration. The first part of the lab consisted of cutting out spinach leaf disks with a straw and then putting them into syringes containing an infiltration solution and sodium bicarbonate. Then the syringes were place under the presence of light and watched as certain disks floated. This part of the lab consisted of watching photosynthesis take place. Then for the second part of the lab we tested cellular respiration
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Titration Lab Introduction The purpose of this lab is reach and be able to calculate the equivalence point when we use titration to neutralize a base with acid. The process of the lab was determining the volume of a solution needed to react with a given mass or volume of a sample is called titration. The equivalence point is when the same number of moles of acid and moles of base has been added. Phenolphthalein is used as an indicator because it will have a color change when the equivalence point
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“Electromyography in the Abductor Pollicis Brevis‚ Bicep‚ and Tricep Muscles of a Human”. July 6‚ 2015. PCB 3713L- General Physiology Lab‚ Section #001 Introduction Skeletal muscles are responsible for most of the locomotion seen in humans and animals. Electromyography can be used to measure the electrical activity emitted from the muscle and nerves that control the muscle. This electrical activity is seen when a neuron ignites an action potential that activates the muscle fibers that were innervated
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Fermentation then takes place only in the absence of oxygen. In fermentation the pyruvate is converted into ethyl alcohol‚ through the oxidation of the 2 NADH molecules‚ which returns them to two NAD+’s (Freeman‚ 2011). Oxidation is the loss of an electron in this case H+. We used information from previous labs in which we tested
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The Gene Lab 1. Introduction The purpose of this report is to inform dog breeders of a very common genetic disease known as Progressive retinal atrophy (PRA). The report will also inform buyers of the disease so they are aware of the disorder and they can check to dog’s pedigree for the disease. PRA could affect any dog‚ as a result of this it is recommended that the offspring should be examined by a board-certified veterinary ophthalmologist and screened for the existence of the disorder.
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baking Yeast helps raise the dough and also yeast is used in the process of making wine.The Reason why yeast was chosen to was to see how yeast can metabolize different sugars and how much Co2 they release when when metabolizing.To test the yeast at the lab we used 4 different types of carbohydrates which are known as Glucose‚Lactose‚Sucrose‚and Starch.The main thing that make some of these carbohydrates different from each other is if it’s a Monosaccharide‚ Disaccharide‚or Polysaccharide. Monosaccharide
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exists in our small intestine and our small intestine uses acid to break down food. The result from the lab prove my hypothesis correct because lactase worked well at body temperature and it also worked well at pH of 4.5 to 5.5 mg/dl proving that lactase works best at an acidic pH number. The lab shows that the highest amount of glucose is made by temperatures close to body temperature. In our our lab‚ we found that at 35 °C 500 mg/dl glucose was produced‚ which was the highest number of glucose that
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Tiger Beer was launched in 1932‚ becoming Singapore’s first locally brewed beer. It is a 5% abv bottled pale lager‚ which is brewed in 12 asian countries. As APB’s major brand‚ it is available to consumers in more than 60 countries worldwide including Europe‚ USA‚ Latin America‚ Australia‚ New Zealand and the Middle East. The bottles are on special offer in Sainsburys at the moment‚ and at two for £3‚ I thought it was worth a try‚ as it was a brand I hadnt tried before. Once opened‚ the
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