Name: Lab Partners: Experiment Date: 02/09/2013 Due Date: 02/23/2013 Lab Exercise No. 2 Determination of Kc Values Using UV Absorption Objectives * To determine the equilibrium constant for a given reaction * To understand the concept of Le Chatelier’s Principle * To gain experience in the use of a UV Spectrophotometer Background/Concepts * A chemical equilibrium is the state reached by a reaction mixture when the forward reaction and the reverse reaction
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Lab Questions: Lab #4 * Why are the chloroplasts traveling along the outer perimeter of the Elodea cell? The chloroplast are traveling along the outer perimeter to help move the vital nutrients thought the cells and convert them to substances used in the cell of the elodea cell. * What is the typical size difference between animal cells and bacterial cells? One of the main difference between an animal cell and a bacterial cell is a bacterial cell contains a plasmid‚ a ring of DNA‚ opposed
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Temperature (°C) Convert to: g NH4Cl 100 mL H2O 1 2g 5.0 44°C 40g NH4Cl 2 2.2g 5.0 50°C 44g NH4Cl 3 2.4g 5.0 57°C 48g NH4Cl 4 2.6g 5.0 61°C 52g NH4Cl 5 2.8g 5.0 66°C 56g NH4Cl Data Table 2: Experiment Results Solubility of NH4Cl (g/100 mL H20) Crystallization Temperature (°C) 40g NH4Cl 44°C 44g NH4Cl 50°C 48g NH4Cl 57°C 52g NH4Cl 61°C 56g NH4Cl 66°C Data Table 3: Solubility Results Compound Mixture Soluble or Insoluble? Distilled H2O + Na2SO4 soluble Corn Oil + Na2SO4
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Resource Dependence Theory (RDT) in reality: The main objective of Resource Dependence Theory is to reduce the dependence on other organizations and having vital resources to reduce the control of other organizations on them. However‚ in reality Resource Dependence Theory is not fully accomplished in organizations due to the insufficiency of resources and some other obstacles. We tried to relate Resource Dependence Theory with IKEA‚ world’s largest furniture retailer. IKEA IKEA Resource Dependence
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pollution and invasive alien species. Biodiversity loss is responsible for destabilizing ecosystems because it weakens their natural cycles‚ reducing the ecosystem’s productivity. It has impacted both agricultural and pharmaceuticals industries due to their heavy dependence on the environment‚ resulting in a loss of profit and more importantly‚ an increased scarcity of food and medicine. Biodiversity loss is occurring at up to 1‚000 times
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CHM130 Lab 3 Identification of Chemical Change Name: Paige Miller A. Data Table (24 points) Place your completed data table here: Reactants Predictions Before Combining Observations After Combining Starch + I2 I2 will turn Starch black I2 turned starch black Food coloring + NaOCl NaOCI will turn blue Coloring and NaOCI did not combine‚ NaOCI separated to the bottom Food coloring + CH3COOH CH3COOH will turn blue CH3COOH darkened the blue color Food coloring + NaOCl + CH3COOH Will
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Courtney Cubine 6/19/13 June 20‚ 2013 Separation of a Mixture of Solids Purpose: The purpose of this experiment was to help the student learn how to separate a mixture of multiple different solids and determine the percentage of each component of the mixture. Procedure: I started off by removing the iron using the magnet‚ and then I weighed all of the iron I obtained from the mixture in a container I already knew the weight of and calculated the net weight of the iron. Next
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INTRODUCTION According to Oxford Dictionary‚ biodiversity means the state of having a large amount of different number of animals and plants which make a balanced environment. Biodiversity is also known as flora and fauna. The meaning of flora is all the plants growing in a particular area while fauna means all the animals of an area or a period of time. Rafflessia for flora while tiger for fauna is a case in point. Crisis on the other hand means a time of great danger or difficulty‚ the moment
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adolescents who fulfilled diagnostic criteria for caffeine dependence. These studies‚ which represent a series of case reports‚ demonstrate that a clinically meaningful caffeine dependence syndrome does exist. When individuals in the general population are surveyed about their caffeine use‚ a surprisingly large proportion endorse substance dependence criteria. In a random digit-dial telephone survey in which all seven DSM-IV criteria for substance dependence were assessed‚ 30% of caffeine users fulfilled diagnostic
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Cedar Girls’ Secondary School VCA Integrated Programme 2014 Biology – Man and His Environment Man and His Environment Learning objectives: (a) Briefly describe the non-cyclical nature of energy flow (b) Explain how energy losses occur along food chains‚ and discuss the efficiency of energy transfer between trophic levels (c) Describe and interpret pyramids of numbers and biomass (d) Describe how carbon is cycled within an ecosystem (e) Use simple ecological field techniques such as quadrat and line
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