Flame Lab Objective: How an electron absorbs energy and re-emits it as light and why different elements have different spectra. Also to learn how to use flame tests to determine the identity of unknown mixtures. Hypothesis: We know that certain compounds will burn certain flame colors because they emit different wave lengths. Introduction: Neils Bohr made the “Bohr’s Model” in 1922‚ he found that electron travel in specified fields – which‚ when excited‚ will jump to different rings
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NETW410‚ Woody Wu 1/14/14 Lab 2: Application of the Top-Down Network Design Methodology Lab Report 1. What are the business goals? (10 points) The goals of the business are to create a new network that could support the growing number of students at the campus and to create a way for off campus students to access the network. 2. What are the business constraints? (10 points) The constraints on the company are that the budget consists of revenue from property taxes and a previously
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by a plate clutch just before slip occurs. It is evident that this must depend on the friction between the plate and the plate it presses on. Hence this experiment uses three different sizes of friction plates to test the theory and assumption. 2. THEORY Consider an upper turntable which turns due to the torque T on a concentric friction plate supported by a stationary base. The inner and outer radii of the plate are ri and ro. Take an elemental plate of radius r and width dr. The axial
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Balance Lab of a Copper Slug and Sodium Chloride (NaCl) on a Centigram and Electronic Scale PURPOSE/INTRODUCTION The purpose of this experiment is to learn how to weigh a substance on a centigram scale and an electronic scale through direct weight or by weight difference. The hypothesis is that all scales used should show the same weight for a given sample. The experiment should show precision and accuracy of the equipment being used. This will allow a better understanding on how to properly
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Chemistry Lab Report Water Hydration Introduction: A hydrated crystal or hydrated occurs when water becomes tightly attracted to a metal salt base on it’s polarity. The water molecules maintain integrity as molecules‚ however they are considered to be part of the formula of the hydrate. When the hydrate metal salt crystal is heated‚ the attractions to the water are broken by the heat energy and the water escape from the crystal. After heating the salt crystal is called as anhydrous‚ which
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of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal
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Lab 6.7.4 IPv4 Address Subnetting‚ Part 2 Let’s add some of this information to our table: Host IP address|172.25.114.250| Major network mask|255.255.0.0 (/16)| Major (base) network address|172.25.255.255| Total Number of Host BitsNumber of hosts|16 bits or 216 or 65‚536 total hosts| Subnet mask|255.255.255.192 (/26)| Number of subnet bitsNumber of subnets|261024 (210)| Number of host bits per subnetNumber of usable hosts per subnet|664 – 2 = 62 (from 26 – 2)| IP for first host on this
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similar to the Data Table: Experiment Results in the Lab Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium chloride solution. Use only distilled water since tap water
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Purpose=The purpose of this lab was to combine reactants‚ which we would pick ourself‚ to make 2 grams of Copper Phosphate and another product. Background: Chemistry is the branch of science that deals with the identification of the substances of which matter is composed. Chemistry has to do with many things we use today. For example‚ fireworks are made by the chemical combining magnesium‚ titanium‚ copper‚ aluminum‚ strontium‚ or other periodical elements. Things also like making plastic‚ jewelry
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AX + BY AY + BX This reaction can occur between two inorganic salts when one product is insoluble in water‚ driving the reaction forward. A typical example is as followed and is considered a molecular equation. BaCl2(aq) + 2AgNO3(aq) Ba(NO3)2(aq)+2AgCl(s) To better identify the strong electrolytes we write a more realistic equation as follows: Ba2+(aq)+2Cl-(aq)+2Ag+(aq)+2NO3(aq) Ba2+(aq)+2NO3-(aq)+2AgCl(s) This is called an ionic equation an AgCl precipitates out of the solution
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