Purpose : The experiment this week had two different purposes. The first is to teach us about freezing points. This lab was designed to show us the freezing point of a pure solvent‚ in comparison to a solvent in a solution with a non-volatile solute. The second goal of the experiment is to teach students about osmosis. In the experiment‚ we got to observe osmosis as well as understand dialysis. Procecure : Part 1. Colligative Properties 1. Create a water bath by filling ½
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Demonstrating osmosis Introduction The movement of water in and out of a system bounded by a membrane permeable to water‚ but not certain other substances‚ can be inferred by either mass changes or volume changes in that system. It is possible to monitor other changes in physical conditions‚ such as texture. Monitoring mass enables quantification of the changes‚ whereas other changes may only be qualitatively measured. Equipment / materials 4 eggs Sugar Distilled water Acetic acid Scales
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Write UP On AMERICAN HOME PRODUCTS CORPORATION: Company Overview Background Information: American Home Products Corporation (AHP)‚ is a pharmaceutical company. The company was based in Madison‚ New Jersey‚ USA. They were known for manufacturing the over-the-counter (OTC) drugs Robitussin and the analgesic Advil (ibuprofen)‚ as well as the prescription drugs Premarin and Effexor‚ which both boast over US$3 billion in sales annually. American Home Product Corporation (AHP)‚ a highly growing
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I am going to investigate osmosis when potato is placed in different concentrations of sucrose. I am aiming to witness osmosis in 5 different concentrations of sucrose. I will use 5 varying concentrations so that I have a wider spread to compare the results‚ and check that I don’t have any anomalies Prediction Osmosis is the process of diffusion of water molecules from a weaker solution into a stronger solution‚ through a semi permeable membrane. The tiny pores in the membrane
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aspects that need to be considered during the experiment are to provide caution whilst handling benedict’s solution as it can be caustic to the skin and eyes. As a safety measure wear a lab coat‚ gloves and protective goggles at all times . Handle glass ware with care to minimise breakage. Follow general lab practice. METHOD The apparatus was
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Marina Chmykhalo-Friermood Professor N. Cohen FINA 6273-Section 10 October 23‚ 2014 New Heritage Doll Company Write-up Introduction New Heritage Doll Company is a firm that has ventured into doll production which has sought to extend its brand in order to broaden its market framework and more importantly capitalize on high levels of customer loyalty. The vice president of the Company‚ Emily Harris‚ is to forward her project proposal to the Budgeting Committee for evaluation. The Vice-president’s
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Case Write-Up: The Investment Detective Case Summary The purpose of this case is to become a capital budgeting analyst and evaluate which set of free cash flows for 8 projects will result in the most effective investment for a firm’s capital. The objective given is to rank the four best that the company should accept. The case is broken down into three separate steps including the given information about estimated cash flows (inflows & outflows)‚ determining the appropriate discount rate‚ and evaluating
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Practical 7 Osmosis Name: Diana Baktybayeva Tutorial Group: D Lab Partner: Nurlan Mukazhanov Day: Monday afternoon Date: 17.11.14 Title: Osmosis Introduction. Osmosis is a particular type of passive transport involving the movement of water molecules from the region of low solute concentration to the region of high solute concentration through semi permeable membrane‚ which allows movement of solvent molecules‚ but not solute. The main principle of osmosis is to equalize
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Abstract This experiment was designed to answer the question does temperature affect the amount of osmosis? The hypothesis predicted was that the higher the temperature the more osmosis would occur‚ but too high the osmosis would halt due to enzyme and substrate overheating and losing shape. After research and class time it was concluded that osmosis is a passive transport and would not require energy or enzymes due to it going from high to low concentrations with the gradient
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Osmosis Experiment Diana Arrowood Grand Canyon University BIO-100L Biology Concepts September 16‚ 2011 Osmosis Experiment Directions Use the information below to complete the Osmosis Experiment. Materials 1 fresh baking potato Water Salt Four small containers (i.e.‚ drinking cups or clear glasses) A metric ruler Methods and Procedure 1) Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers‚ add 1 tablespoon (14.8 ml) of table salt and mix well until
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