... it increases the water movement out of the plant by a process called transpiration. When there is a shortage of water, the guard cells well get smaller and close the stomata, and the transpiration process will move slower. The osmolarity would be tested with solute concentrations ranging from 0.0 M to 0.6 M. The concentrations increased 0.1 M each time and the solute used was sucrose. The goal of this experiment was to determine which concentration had the least effect on the potato after being incubated. This information helped us estimate the osmolarity of the potato tuber tissue. Our group hypothesis is that the osmolarity of the potato will have the concentration with the 0.1 M solution. This hypothesis is based off the predicted outcome that smaller molarity concentrations will have the least effect on the potato. The more solute added to a solution decreases the concentration of water in most cases (Kosinski). The decrease in water concentration would then lead to a lower weight of the potato tuber once it has finished incubating. Methods & Materials: For experiment A you will need the following items: 1 large potato tuber Forceps petri dish razor blade DI water metric ruler 7 250 mL beakers/ or disposable cups balance that weighs to the nearest 0.01g sucrose...
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...wish to print and study from a paper copy. Both of these files are accessible from MODULES > MODULE 2 area of the course website. Required Readings: 1. Read Chapter 1 (pages 1 – 25) from your textbook. Activities, Module-specific Assignments and Timeframe: This module begins on Tuesday (Sept 2nd) and ends on Sunday (Sept 7th). This means that module activities/assignments are to be completed by the end date. Replies and further forum discussions can go on after the end date. Listen/View and study the presentation along with the required reading. After finishing the readings, you are encouraged to ask question/s that is related to this module and that you don’t know the answer to and want it to be answered. The question/s can be answered by anyone in class. The instructor will allow sometime for other students to answer the question/s before contributing. You can post your questions in MODULE 2 forum under the Discussion Forums. Complete Assignment #2. The assignments are posted in the ASSIGNMENTS area of the website. Even though the homework assignments are not to be turned in and graded, you are strongly encouraged to do them to understand the material and to prepare for quizzes and tests. A complete solution to this assignment will be posted on the course website under ASSIGNMENTS on Thursday (Sept 4th). You are encouraged to review the solutions and compare your work to the solution, ensuring that you understand the reasons the solutions appear as they do. You are also...
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...COLLIGATIVE PROPERTIES: FREEZING POINT DEPRESSION AND MOLAR MASS: AIM The aim of the experiment is to become familiar with the colligative properties and to use them to determine the molar mass of a substance. THEORY A solution consists primarily of solvent and therefore, most of the solution’s properties reflect the solute’s properties. The physical properties that the solution and solute do not share are known as colligative properties and they depend solely on the solute concentration. Some of these properties include vapor pressure lowering, boiling-point elevation, freezing point lowering, and osmotic pressure. The solvent boils when the vapor pressure, or tendency of solvent molecules to escape, is equivalent to the atmospheric pressure. At this moment, the gaseous and liquid states of the solvent are in dynamic equilibrium and the molecules change from the liquid to the gaseous states and from the gaseous to liquid states at equal rates. The dissolution of a solute with very low vapor pressure, or a nonvolatile solute, raises the boiling point and lowers the freezing point. Similarly, anti-freeze lowers the freezing point and lowers the boiling point. The colligative-property law describes these effects, stating that the "freezing point and boiling point of a solution differ from those of the pure solvent by amounts that are directly proportional to the molar concentration of the solute" (Brown, 203-204). The colligative-property law can be expressed using the equation: D T =...
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...Download Now for Free PDF Ebook Lakeside Hospital Case Solution at our Online Ebook Library. Get Lakeside Hospital Case Solution PDF file for free from our online library LAKESIDE HOSPITAL CASE SOLUTION PDF Download: LAKESIDE HOSPITAL CASE SOLUTION PDF LAKESIDE HOSPITAL CASE SOLUTION PDF - Are you looking for Ebook lakeside hospital case solution PDF? You will be glad to know that right now lakeside hospital case solution PDF is available on our online library. With our online resources, you can find lakeside hospital case solution or just about any type of ebooks, for any type of product. Best of all, they are entirely free to find, use and download, so there is no cost or stress at all. lakeside hospital case solution PDF may not make exciting reading, but lakeside hospital case solution is packed with valuable instructions, information and warnings. We also have many ebooks and user guide is also related with lakeside hospital case solution PDF, include : Applied Calculus 4th Edition Even Answers, Basic Chemical Solutions, Catalytic Solutions Inc Case Study, Calculus Early Transcendentals 7th Edition Yonsei Solutions, Congress Scavenger Hunt Answers, College Algebra Textbook Answers 2, Congress Of Vienna Guided Answers, Chapter 18 Study Guide Answers, English Grammar Third Edition Answer Key, Fac1502 Oct Nov 2012 Solution Docx, Food Safety Test Questions And Answers, Hayden Mcneil Bio 101 Lab Manual Answers, Harcourt Trophies 5th Grade Answer Key, Holt Mathematics Lesson 9...
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...is successfully performed.2,3 Recrystallization works based on the difference in solubility when the temperature changes. Therefore, picking the solvent to dissolve the compound is a very tricky and important part. For single-solvent recrystallization, which is performed in this experiment, the chosen solvent should not dissolve the sample while cold, so that the crystal can be formed when the temperature drops. However, the solvent should dissolve the sample completely while hot in order to release all the impurity crystals being trapped up in the solid form of the desired compound. Furthermore, the impurities should have higher solubility than the desired compound in that chosen solvent, so that all the impurities would remain in the solution while recrystallization takes place.2,3 In case no single solvent can be found, a system of two solvents can also be used for recrystallization. Generally speaking, in this solvent pair, one of them can completely dissolve the sample while the other one cannot dissolve the sample at all. The primary requirement when making this system is that the two chosen solvents have to be completely miscible, in other words, can mix with each other in all proportions. After this requirement is satisfied, all students need to do is to find out the right proportion for the system.1,2,3...
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...in proving solutions. * Innovation driven firm, which consists of employees from wide ranges of background, both culturally and technically. This helped to provide a diverse way for approaching a problem and coming up with its solution. People with different perspectives helped to modify and refine the solutions, which helped IDEO to provide innovations to wide ranges of services. * Structurally the firm’s management is flat, meaning that there is no hierarchy and bureaucracy within the project team. This helps everyone to feel essential to the team and contribute equally. * They give a lot of emphasis on trying to develop an insight to the actual problem clients are facing, which enables them to use general tools employed in those types of problems. Their product development process is well thought out, tried and tested. They depend on brainstorming sessions to come up with ideas that provide sustained creative solutions. * IDEO is evolving constantly with time, focusing on working more closely with its clients and external agencies in order to provide them better solutions and reduce their project execution times. * IDEO had a unique way of approaching a problem. It didn’t come up to a company with the symptom of a problem but rather focused on unearthing the root of the problem. It’s not that it had extensive knowledge on the field of the company it was helping out, but used the general ways of approaching and providing a creative solution to any field...
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...in proving solutions. * Innovation driven firm, which consists of employees from wide ranges of background, both culturally and technically. This helped to provide a diverse way for approaching a problem and coming up with its solution. People with different perspectives helped to modify and refine the solutions, which helped IDEO to provide innovations to wide ranges of services. * Structurally the firm’s management is flat, meaning that there is no hierarchy and bureaucracy within the project team. This helps everyone to feel essential to the team and contribute equally. * They give a lot of emphasis on trying to develop an insight to the actual problem clients are facing, which enables them to use general tools employed in those types of problems. Their product development process is well thought out, tried and tested. They depend on brainstorming sessions to come up with ideas that provide sustained creative solutions. * IDEO is evolving constantly with time, focusing on working more closely with its clients and external agencies in order to provide them better solutions and reduce their project execution times. * IDEO had a unique way of approaching a problem. It didn’t come up to a company with the symptom of a problem but rather focused on unearthing the root of the problem. It’s not that it had extensive knowledge on the field of the company it was helping out, but used the general ways of approaching and providing a creative solution to any field...
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...Project Present By 1. Atthaya Pancharin 53441642 2. Korntatan Patarataweetip 53441602 3. Panchabhorn Bodhintrsopon 53441617 4. Pikul Sithichan 53441620 5. Varatip Silapapong 53441625 May 2011 สารบัญ ประวัติความเป็นมา 3 ความหมายของตราสัญลักษณ์รวงข้าว 3 ความหมายของสีในสัญลักษณ์ ของธนาคารกสิกรไทย 4 ภารกิจ 4 วิสัยทัศน์ 4 ค่านิยมหลัก 4 นวัตกรรม กับธนาคารกสิกรไทย ตั้งแต่อดีตจนถึงปัจจุบัน 5 สรุป นวัตกรรมต่างๆของธนาคารกสิกรไทย 15 นวัตกรรมของธนาคารกรุงเทพ 19 บทวิเคราะห์ 20 จุดเปลี่ยนธนาคารกสิกร ผู้นำนวัตกรรมการเงิน 20 การสร้าง Positioning 24 กลยุทธ์การบริหาร Strategic Management 26 ตารางการเปรียบเทียบสินทรัพย์รวม และกำไรสุทธิ ของธนาคารกสิกรไทย และธนาคารกรุงเทพ ระหว่างปี 2549-2553 29 ข้อเสนอในการทำ Innovation เพิ่ม/ลด/เปลี่ยน 30 วิธีการวางแผนและ ดำเนินงานภายในกลุ่ม 31 วิธีการค้นหาข้อมูลต่างๆ 31 แหล่งข้อมูลที่ใช้ในการค้นหา 32 แผนการดำเนินการ 32 ประวัติความเป็นมา ธนาคารกสิกรไทย ก่อตั้งเมื่อวันที่ 8 มิถุนายน พ.ศ. 2488 ด้วยทุนจดทะเบียน 5 ล้านบาท และพนักงานชุดแรกเริ่มเพียง 21 คน มีอาคารซึ่งเป็นสาขาสำนักถนนเสือป่าในปัจจุบันเป็นที่ทำการแห่ง แรก การดำเนินงานของธนาคารประสบความสำเร็จเป็นอย่างดี เพียง 6 เดือน หรือเพียงงวดบัญชีแรกที่สิ้นสุด ณ วันที่ 31 ธันวาคม พ.ศ. 2488 มียอดเงินฝากสูงถึง 12 ล้านบาท มีสินทรัพย์ 15 ล้านบาท จากจุดที่เริ่มต้นจนถึงวันนี้ ธนาคารกสิกรไทยเติบโตอย่างมั่นคง ณ วันที่ 31 มีนาคม พ.ศ. 2554 มีทุนจดทะเบียน 30,486 ล้านบาท มีสินทรัพย์จำนวน 1,677,862 ล้านบาท เงินรับฝากจำนวน 1,182,390 ล้านบาท...
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...sugar solutions on potato cells. By measuring the mass of the potato cylinders, you will be able to find out if water has entered or left the potato cells. Aim To find out what happens to the mass of potato cells when they are left in increasingly concentrated solutions. Hypothesis My hypothesis was that if the concentration of sugar where the water potential is higher than the water potential of the potato, the mass of the potato will increase. On the other hand, if they have similar water potential, the mass will not change. Variables Independent variable: concentration of sugar Dependent variable: change of mass of the potato before and after the experimant Controlled variable: temperature Apparatus • Potato • A 6mm Cork borer • Ruler • Scalpel • White tile • Sugar • Distilled water • Labelling pen • 50mL measuring cylinder • Weight balance • Stopwatch • Labels • Paper towel • 12 boiling tubes • Boiling tubes rack • Four 250mL beakers Methods 1. Measure 100mL of distilled water into a 250mL beaker. Label it “0% sugar solution”. 2. Measure 100mL of distilled water into a third 250mL beaker. Add 20g of sugar into it and stir until fully dissolved. Label it “20% sugar solution”. 3. Measure 100mL of distilled water into a fourth 250mL beaker. Add 40g of sugar into it and stir until fully dissolved. Label it “40% sugar solution”. (Note that this solution might have already been prepared for you) 4. Extract 20mL of the “0% sugar solution” and...
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...SE571 Course Project: Security Assessment and Recommendations SE571 Course Project: Security Assessment and Recommendations Charlie Furze Professor: Eddie Wachter SE571 Principles of Information Security and Privacy Keller Graduate School of Management July 24, 2015 Table of Contents Executive Summary 1 Company Overview 1 Security Vulnerabilities 3 A Hardware Example Title 3 A Software Example Title 4 Recommended Solutions 5 A Hardware Example Solution 6 A Software Example Solution 8 Impact on Business Processes 9 Budget 10 Summary 11 References 12 Executive Summary The executive summary can’t really be completed until the course project is completed. This is because the section should summarize BRIEFLY the entire paper. There should be one or two sentences about the purpose of the report, a one to two-sentence description of the company and then a quick summary of the two vulnerabilities and the two solutions that you have identified. Company Overview Here you should identify which of the two company scenarios you are using and briefly summarize the organizations products or services, and business processes. Two Security Vulnerabilities Software Vulnerability Remember, you need to choose only two vulnerabilities from the three categories: hardware, software and policy. It is recommended that you make them limited in scope and very specific. Also, before starting on this section, be sure you have a very clear...
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...acidic solution and to calculate the solubility constant using the equation Ksp=[Pb2+][I-]2 . Safety: Safety glasses must be worn at all times. Gloves are recommended in order to avoid the direct contact between skin and the chemicals. Avoid the spill of chemicals during shaking the solution in the test tube. Must dispose liquids with lead in inorganic waste and filter paper in solid waste. The other liquids can be disposed in the drain with a lot of water. Procedure: Use the graduate cylinder next to the stock solution, obtain approximately 35ml of 0.012M Pb(NO3)2 in 0.20M KNO3 into a 250ml beaker. Use the graduate cylinder next to the stock solution, obtain approximately 30ml of 0.03M KI in 0.20M KNO3 into a 150ml beaker, and use the graduate cylinder next to the stock solution obtain 10ml 0.20M KNO3 into a 50ml beaker. Label four test tubes as 1,2,3 and 4. Pipet 5ml of 0.012M Pb(NO3)2 into each test tube, and pipet 2ml of 0.03m KI in KNO3 and 3ml of 0.2M KNO3 into test tube 1, pipet 3ml of the same solution and 2ml of 0.2M KNO3 into test tube 2, pipet 4ml of the same solution and 1ml of 0.2M KNO3 into test tube 3, and pipet 5ml of the same solution into test tube 4. Stopper each test tube using parafilm and shaker the test tube thoroughly for few minutes. Obtain a fifth test tube and pipet 10ml of 0.012M Pb(NO3)2 in KNO3 and 10ml of 0.03M KI in KNO3 and shake the mixture solution and wait for the precipitate to settle. Use stirring rod to decant the solution. Add...
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...Recrystallization Par, B., Ramos, S., Reynaldo, H., Roque, P., Servidad, Y., and Soriente, P. 2D-Pharmacy, Group No. 7, Department of Pharmacy, Faculty of Pharmacy, University of Santo Tomas, España Boulevard, 1015 Manila, Philippines Abstract Recrystallization is the primary method of purification used to isolate organic compounds in a supersaturated solution by the difference of solubility at different temperature that results to the separation of the compound from the solution. The purpose of this experiment is to synthesize acetanilide by the acetylation of aniline and to obtain pure acetanilide by purification of the collected crude acetanilide by crystallization. The recrystallizing solvent was chosen among ethanol, water and hexane. The acetanilide was synthesized and formed by acetylation of aniline and acetic anhydride, and it was then cooled to hasten the formation of crystals. After cooling, the mixture was filtered and dried to obtain the crude acetanilide. The crude acetanilide and the chosen recrystallizing solvent was mixed and heated in the water bath until the solid dissolved. The solution was filtered while hot and its filtrate was cooled in an ice bath. The filtrate was then filtered to collect the crystal residue formed. The crystals were washed with distilled water and allowed to dry to obtain the pure acetanilide. The weight of pure acetanilide was measured and the melting point of the pure acetanilide was determined. Based on the results obtained...
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...just enough hot solvent to it to completely dissolve it. The flask then contains a hot solution, in which solute molecules - both the desired compound and impurities - move freely among the hot solvent molecules. As the solution cools, the solvent can no longer hold all of the solute molecules, and they begin to leave the solution and form solid crystals. During this cooling, each solute molecule in turn approaches a growing crystal and rests on the crystal surface. If the geometry of the molecule fits that of the crystal, it will be more likely to remain on the crystal than it is to go back into the solution. Therefore, each growing crystal consists of only one type of molecule, the solute. After the solution has come to room temperature, it is carefully set in an ice bath to complete the crystallization process. The chilled solution is then filtered to isolate the pure crystals and the crystals are rinsed with chilled solvent. How To Do a Crystallization : Heat some solvent to boiling (remember to use a boiling chip). Place the solid to be recrystallized in an Erlenmeyer flask. Pour a small amount of the hot solvent into the flask containing the solid. Swirl the flask to dissolve the solid. Place the flask on the steam bath to keep the solution warm. If the solid is still not dissolved, add a tiny amount more solvent and swirl again. When the solid is all in solution, set it on the bench top. Do not disturb it! After a while, crystals should appear in...
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...The purpose of this experiment was to demonstrate how diffusion and osmosis moves across a dialysis membrane. The sub-purpose was to determine if the sucrose solution, that was in dialysis tubing would leak into the distilled water. The hypothesis states that if a sucrose solution, in dialysis tubing, is placed into a beaker filled with distilled water the net movement of sucrose will be into or out of the dialysis bag. The null hypothesis states that if the sucrose solution in a dialysis bags mass may change after taking it out of the water each time to be weighted between each 15-minute increment 5 different times. After 15, 30, 45 and 60 minutes it can be concluded that weighing the sucrose solution in the dialysis bag increased in weight after each increment. Keywords: Diffusion, Osmosis, Dialysis bag, Sucrose solution, Distilled water Introduction...
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...all the solutions and collecting data, the solution most similar to the test solution in concentration is Solution A. According to my data, Solution B, C, and D all lost mass (grams) while Solution A’s mass increased. Informed by this data, the mass change should be positive in order to match the test solution. Due to the exposure of the hypotonic solution in Solution A, the potato increased from 2.71 ± 0.01 grams to 3.01 ± 0.01 grams. Through osmosis, the water molecules moves from the solution into the potato cells’ semi-permeable membrane which exists across the concentration gradient in order to reach an isotonic state. This lead to the potato increasing in relative weight and size to its prior form. With my data’s evidence,...
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