Chapter 1- Observing Matter 1.1 The Study of Chemistry * Chemistry is the study of matter and its composition * It is what happens when matter interacts with other matter Chemistry: A Blend of Science and Technology * Scientists develop models‚ conduct experiments and seek patterns * They work on discoveries of other scientists from before * Chemical techniques and processes were invented by early chemists (making medicines‚ growing crops‚ shaping metals‚ glassware
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EXPERIMENT 2: SYNTHESIS OF ORANGE II (2-NAFTHOL ORANGE OBJECTIVE 1. To produce dye based to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain
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1. Describe the function of the following pieces of safety equipment and how each might be used: a. Eye wash- To be used in the event of a chemical splash to the eyes. Should be used to flood the eyes for at least 15-30 minutes with water‚ flooding from the eye outward. b. Fire Blanket- To be used in the case of a small fire. Would be tossed onto flames to suffocate the flow of oxygen. c. Shower- Safety showers are designed to flood your body with water in the event of a fire or chemical spill
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TESC Introduction to Marketing Written Assignment 1 Choose a specific industry (e.g.‚ grocery retailing‚ the airline industry‚ etc.)‚ and apply Porter ’s Five Forces Model to discuss that industry ’s competitive forces and their relative influence. Michael E. Porter‚ a renowned business strategist‚ identified five competitive forces that influence planning strategies that businesses use. The model‚ called Porter’s Five Forces was later updated to include the impact that the internet
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Microbiology Kit (MBK) – Lab Report Observing Bacteria and Blood Questions: List the following parts of the microscope and describe the function of each A. Ocular Lens- the lens on the top of the microscope that look into with 10x or 15x power. B. Body Tube- Connects eye piece to the objective lens C. Revolving Nosepiece- holds two or more objectives lenses and can be rotated easily to change power D. Objective lenses- 4x‚ 10x‚ 40x‚ and 100x powers E. Stage- The flat plate where the slides
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Lab 1 – Ubiquity of Microbes Bacteria are the most widely distributed organisms in the biosphere. They are found in all different types of soil‚ water and even in the bodies of other living organisms. Every single place that humans have explored on the Earth‚ have shown to contain microbes. Bacteria are living organisms and like all living organisms‚ they require energy and carbon sources in order to metabolize and reproduce. And like all living organisms they respond to changes in their environment
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higher resolution and more light‚ you need to put more than one mirror together and make them work together‚” explains Robert Angel‚ a professor of astrology at the University of Arizona (Giant Mirrors to Capture the Universe). Just as we learned in our lab‚ we need a good source of light for something to become clear. The mirrors that are used for the telescope cause the light to be reflected off of one mirror onto the other which then create a clear image from the large convex lens. “Because these
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bold font Student Exploration: Density Experiment: Slice and Dice Define Vocabulary Density: The degree of compactness of a substance Mass: A coherent‚ typically large body of matter with no definite shape Matter: The substance or substances of which any physical object consists or is composed Volume: The quantity of three-dimensional space occupied by a liquid‚ solid‚ or gas Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What do you think would happen if you
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Density‚ Mass and Volume Density is the measure of how tightly the particles of a substance are packed into a given volume. L=1cm B=1cm H=1cm Aluminium=1cm3 Volume=lbh Volume= 1cm*1cm*1cm Volume= 1cm3 Iron 1cm3 1cm3 of iron would be however than 1 cm of aluminium. The density of the iron cube would be greater than the density of the aluminium cube. One explanation from that is that the particles/molecules in the iron cube are more tightly
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The purpose of this experiment was to determine the density of an object by measuring its mass and volume. Hypothesis When the rubber stopper is dropped into the overflow can‚ the volume displaced (mL) will be equal to the number of grams of the rubber stopper. I think this will be the outcome because I learned before that 1g=1ml‚ so for every gram dropped into the overflow can‚ 1 ml should be displaced (the volume). Therefore I think the density of each rubber stopper would be 1g/ml. Materials
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