limited and extensive choice experiment in context to hotels. There were 661 participants‚ each chose one hotel and where then surveyed using six questions; three demographic and three in regards to difficulty‚ motivation and satisfaction using a 7-point Likert scale. The findings supported the hypothesis and were consistent with past research. Satisfaction and difficulty of choice showed a statistically significant difference with limited choice groups finding it less difficult and ended more satisfied
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Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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Job Safety Analysis or Job Hazard Analysis All employers have duty of care to individuals‚ staff‚ contractors or third parties in the workplace. It is also a legal requirement that organizations should document any health and safety risks that have been identified in the workplace. Equally‚ it is necessary to record the actions taken to reduce those risks What is a Job Safety Analysis or Job Hazard Analysis? One way to increase the knowledge of hazards in the workplace is to conduct
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INTERPRETATION OF RESULTS: This experiment circles around with the Newton’s second condition of equilibrium in rotational motion. It describes by net torque acting on a body which is zero. The ability of the body to rotate in a certain direction is varied according on how much torque is applied. To prove that‚ a beam that is subjected to two forces is balanced by adjusting the perpendicular distances. When applied force is weight‚ modification in masses added is also done. Once equilibrium is achieved
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The properties of dibenzalacetone make it a great substance to be used when protecting the skin from the sun. In the experiment performed‚ dibenzalacetone was created from an aldol condensation of 2 portions of benzaldehyde and acetone in sodium hydroxide. The reaction that occurred in this experiment is known as a specific aldol condensation called Claisen-Schmidt. In the reaction‚ the carbonyl of benzaldehyde reacts quickly with the acetone anion to create a hydroxyketone that dehydrates in the
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Task 2 The extraction and purification of paracetamol from tablets In this experiment‚ I am trying to achieve an extraction of paracetamol from a commercial branded product. To test the purity I will find the melting point of the paracetamol. I will also be comparing my yield of paracetamol to the commercial tablets content of paracetamol as said on the packaging. EQUIPMENT • 2 paracetamol tablets • Propanone • 100cmᶟ conical flask x2 • 25cmᶟ measuring cylinder • Warm water bath • Filter funnel
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Potato Osmosis Biology SL - ATh INVESTIGATION “Potato Osmosis” INTRODUCTION Osmosis is a process that occurs at a cellular level that entails the spontaneous net movement of water through a semi-permeable membrane from a region of low solute concentration to an area of high solute concentration in order to equalize the level of water in each region. Involved in this process are hypotonic‚ hypertonic and isotonic solutions. A hypotonic solution is one with a lower osmotic pressure‚ indicating
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Title: Spectrophotometer and its function Name: Ooi Shu Chien Student ID: 00000014507 Objective: 1. To determine the wavelength of maximum absorption‚ Amax of bromophenol blue. 2. To construct a standard concentration curve for bromophenol blue. 3. To determine the concentration of the unknown bromophenol blue solutions. 4. To determine the concentration of two different solutes‚ bromophenol blue and methyl orange‚ in
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Tollen’s & Fehling’s tests‚ ketone will have no reaction. In the second part‚ by preparing a derivative of the compound with 2‚4-dinitrophenylhydrazine‚ the sharp melting point can be used to identify the unknown carbonyl compound. Carbonyl compound can form a precipitate with 2‚4-dinitrophenylhydrazine with high melting point: [pic] [pic] [pic]
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The Melting Pot Is The United States of America the “melting pot” of the world? A melting pot is “a place where races‚ theories‚ etc.‚ are mixed.” (The Oxford Dictionary) Many immigrants come to the United States for the same basic reason: A better way of life. These same immigrants envision their dreams of success‚ freedom and happiness coming true. Without different cultures coming together learning from one another‚ many of today’s modern marvels would not exist. A good example of this is
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