10/19/2011 Akruti Patel Lab Report #4: Determination of a chemical formula: the empirical formula of Magnesium Oxide 1. Purpose: Determine the empirical formula of magnesium oxide from the percent composition (this can found using the Analytical Method and the Synthesis Method). 2. Introduction: In the late eighteenth century‚ combustion has been studied extensively. In fact‚ according to Steven and Susan Zumdahl‚ Antoine Lavoisier‚ a French Chemist‚ performed thousands of combustion experiments
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Task 4 (D1) Qu6. Analyse the need for selecting the different voltages used for different parts of the generation‚ transmission and distribution systems drawn for Qu.5. Back in the 1800’s Thomas Edison had a vision to power the whole of New York using DC (direct current) that he developed‚ this idea was brilliant‚ but had one set back. A power station was needed every mile due to D.C. only flowing in one direction. This wasn’t a very practical form of electricity or cost effective‚ another idea or
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ANALYSIS OF ASPIRIN: SPECTROPHOTOMETRY The purpose of this experiment is to evaluate the percent aspirin on a commercial aspirin tablet using an instrumental method‚ spectrophotometry. In a spectrophotometer‚ light from a strong lamp passes through a monochromator‚ which breaks the light into its component colors using a grating‚ then uses mirrors and slits to direct a light beam of the desired wavelength through the sample compartment‚ where you place a tube (cuvette) of solution. A detector
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Team Leader: Karilyn Hutchenrider Partner: Helen Vo Mrs. Desai 9-22-14 Research Plan Rationale: In the world today‚ plastic is one of the most commonly used substances. Different types of plastic have been discovered and used for several decades. One of these types of plastic is called Casein plastic. Casein plastic is made from the casein protein found in milk. One method of creating this plastic is by adding an acid such as vinegar to the milk‚ and separating the filtrate (the plastic created)
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Plastic from milk Materials and Equipment The materials listed below are for doing the experimental procedure exactly as written. However‚ you can make changes to the experimental procedure in order to use a different size measuring cup and/or a stovetop rather than a microwave. * Mugs or other heat-resistant cups (4); they should all be identical so as not to introduce another variable (See Variables in Your Science Fair Project)‚ and large enough to hold more than 8 oz. of liquid * Masking
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Class #1. Objectives: Standards: Assessment: Activities: Content Focus: My food plate Materials: Food pyramid Food portion plate Class #2. Objectives: The students will be able to read a nutrition label correctly. The students will be able to recognize serving size and servings per container The students will be able to understand daily value % Standards: Knowledge‚ access information Assessment: Nutrition label worksheet Activities: Powerpoint-Box cereal‚ can foods‚ worksheet
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Hunger has always been a serious issue and still is today. Many people experience food insecurity and feel shameful when going to food pantries or seeking assistance. We can reduce the negative stigma associated with food pantries in numerous ways. First spreading awareness of the need for food pantries will help change the stigma as people realize that the need is real. Then educating the public on the number of people in need of the food pantries because of their struggle with food insecurity
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______________________________________________________________________ Hydrocarbon: ______________________________________________________________________ Procedure: PhET Simulations Play with the Sims Chemistry Reactants‚ Products‚ and Leftovers If a yellow bar drops down in your browser‚ click on it and select "Allow Blocked Content" Part 1: Making Sandviches: 1. The is a simulation of a two-reactant synthesis reaction. In this case‚ one reactant will be limiting‚ while the other
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Skills Review - Vocabulary - Fractions/decimals/percentages - Rounding -Worded Problems Jane Stratton Objectives: • To review basic number skills that will be required throughout this unit • To review mathematical language used in this unit This unit assumes that you have some basic maths skills already If you have difficulty with any of the following topics please talk to your lecturer/tutor for advice The following slides will be available on MyLO you do not need to copy them down‚ but a list
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even uniform items not properly secured to the individuals uniform as well as objects left in and around the aircraft during maintenance such as loose bolts and screws‚ tools such as allen head wrenches‚ and metal scrap from maintenance including leftover lock wire and bits of cut cotter pins. 156 words Foreign Object Damage is caused when bits of debris left in and around the aircraft make their way into parts of the aircraft‚ often moving‚ and damage the aircraft. Turbine engines take in air
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