ECO204: Solutions to Homework 5 1. True‚ False‚ Uncertain a. False. Methods to eliminating moral hazard include writing efficient contracts between principals and agents‚ bonding and deferred payments. The methods to eliminate adverse selection include sending signals and relying on 3rd parties to verify quality. b. True. When there is asymmetric information‚ it drives out high-quality goods because consumers have a difficult time differentiating between high- and low-quality goods. As a result‚
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are in an area‚ the more collisions there will be. These collisions cause molecules to push away from each other. So‚ over time‚ the molecules of a substance will continue to spread out. Eventually‚ they will be spread evenly throughout the area. Osmosis is the diffusion of water. (when “the substance” that is diffusing is water)
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Reverse Osmosis For Wastewater Recycling Reusing treated wastewater for beneficial purposes‚ such as agricultural and landscape irrigation‚ industrial processes‚ toilet flushing‚ or groundwater basin replenishment‚ is growing in response to environmental and economic concerns. One of the key factors involved in recycling wastewater treatment plant (WWTP) effluent for another use is the need to reduce total dissolved solids (TDS). This is often done by using a reverse osmosis (RO) system‚ which
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This assignment must be submitted no later than November 22nd‚ 2011. 1. What is a true solution? Explain why the solute does not settle out of a solution. Is it possible to have one solid dissolved in another? Explain. In metals it would be called an alloy. 2. An aqueous solution of KCl is colorless‚ KMnO4 is purple‚ and K2Cr2O7 is orange. What color would you expect of an aqueous solution of Na2Cr2O7? Explain. Orange. 3. Explain why hexane will dissolve benzene but will not dissolve
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Laboratory Report on Urine Examination Introduction: When testing urine the test results may provide information regarding the status of carbohydrate metabolism and kidney function. The kidney glomeruli act as ultrafilters for the plasma protein; however as much as 150 mg/dl of protein may normally be excreted into the urine. In glomerular proteinuria‚ an increase in glomerular permeability occurs‚ resulting in an increase of urine proteins. High urine protein concentration therefore may indicate
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Osmosis is the selective diffusion of water and other molecules across membranes‚ which in the case of living organisms‚ the solvent (water) would have net movement across a selective permeable membrane. Osmosis only occurs when a membrane such as that of a cell is permeable to water molecules but not to specific solutes (Tortora & Derrickson 2014). Certain simple molecules such as oxygen‚ water and carbon dioxide can travel across the cell membrane by osmosis‚ a passive process similar to other
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between different concentrations. Material and Methods * Two beakers * Membrane holder * Four Dialysis membranes: 20 (MWCO)‚ 50 (MWCO)‚ 100 (MWCO)‚ 200 (MWCO). * Membrane barrier * Four solutes: NaCl‚ Urea‚ Albumin‚ Glucose * Solution dispenser * Deionized Water * Beaker Flush * Timer * Computerized Simulator Using the computerized simulator‚ the first step of the first experiment‚ you must place the 20 (MWCO)
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b.) The mass decreased or increased in each cylinder‚ depending on if the solution was hypotonic‚ hypertonic or isotonic. In Cylinder (A) the mass decreased‚ so liquid was released from the potato‚ because the cells in the potato would have burst if even more was absorbed‚ whereas the length stayed the same. In Cylinder (B) the mass and length increased‚ which means the potato cells absorbed some Sodium Chloride (NaCl)‚ so the cells don’t shrivel up and die. For Cylinder 3 the mass and length also
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this experiment is conducted so that we may know how things happen in the level of cells. Objectives: 1. To demonstrate the principle of Osmosis and to apply it with actual life situations. Materials and Methods: • Materials: Compound microscope Glass Slide Cover Slip Tissue Paper Blade Rhoeo discolor Leaves Salt Solution • Procedures: Place a drop of distilled water on a clean glass slide. With the use of a blade‚ cut a thin slice of the lower epidermal
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Test Item File Electronic Devices and Circuit Theory‚ 9e (Boylestad) Chapter 1: Semiconductor Diodes 1) An intrinsic semiconductor is one that is as pure as present-day technology can make it. 2) Electrons are the minority carriers in an n-type material. 3) Holes are the majority carriers in a p-type material. 4) The quantum-Volt (qV) is the unit of measurement for electron energy. 5) A free electron has a higher energy state than any that are bound to their nucleus.
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