Green in Shakespeares Tragedy of King Lear Essay

Green in Shakespeares Tragedy of King Lear - Essay Example William Shakespeare, a known English playwright, and poet are regarded widely as the greatest writer in the language of English and the pre-eminent world’s dramatist. Translation of his major plays has been done to almost all living language and more often performed than other playwrights. In his book, The Tragedy of King Lear, many aspects presage the green literature. The work of Shakespeare illuminates more about human nature that is more instructive for a green environment. With respect to the theory of Green literature, ecocriticism involves the study of the relationship between the environment and the research. The book is all about the British elderly king who decides to give out his power and realm to one of his daughters. Even though his preferred choice is the one who loves him most, the other two disguises him and acquire the wealth. The two later turns against him but through the friends of the other daughter, he manages to ascertain the reality. In relevance to nature, therefore, a habitat consists of different organisms’ co-existing together for mutual benefits. An organism can acquire help from the other community, for instance in support. Plants with tendrils, for example, get support from big trees to acquire sunlight. This paper, therefore, analyses the review of the play, The Tragedy of King Lear with regards to the theory of Green Literature, how ecocriticism relates both literature and the environment. The theory of green literature provides the vocabulary towards environmental ethics as well as an attitude in the story of King Lear. This offered a movement beyond symbolism and thematic which were widely characterized by the critical work of Shakespeare in relation to the environment representation.  

Intravenous Paracetamol to manage pain Research Proposal

Intravenous Paracetamol to manage pain - Research Proposal Example Patients are bound to experience pain after the effect of anaesthesia given before surgery is finally gone. White et al (2010) had reported a result of surveys in Europe and the USA, stating the need to improve the quality of managing pain after surgeries. The practice then was to use opioids which have multiple adverse effects (AEs): constipation, urinary retention, vomiting/nausea, allergic reactions, confusion, sedation, respiratory depression, and hypotension. These AEs increased the cost of hospitalization and delayed the recovery of patients. A better way of managing pain was then under clinical trials for 15 years. It involved the use of analgesics that require less opioids. There was no FDA approved Intravenous Acetaminophen at that time. Cadence Pharmaceuticals Inc. patented the first I.V. Paracetamol in July 8, 2011 (US SEC 2011) and produced Ofirmev which, until the present, does not have a competitor worldwide due to the recognized protection for intellectual property. Th is gathered evidence about the efficacy and safety of using Ofirmev (the only available US FDA approved Intravenous Acetaminophen in the market), how it benefits patients, and actually improved the quality of pain management. There were evidences based on actual clinical trials with patients that proved the efficacy and safety of Intravenous Paracetamol to neonates, infants, children, adolescents, adults, and even the elderly with age 65 years old and above, for mild, moderate, and severe cases of pain, especially postoperative pain. Introduction Focus is given to the extent of actual benefits observed in many clinical trials, limitations, and clarifications pertaining to the use of I.V. Paracetamol use for postoperative pain management. As a background, over a year after the introduction of the US FDA approved injectable pain reliever under the brand name Ofirmev, doctors have pursued further clinical trials in Europe and the USA covering thousands of patients. One of the reference s of this paper took the effort to search for registered clinical trials in order to learn more about efficacy, safety, proportion of patients who responded favourably or not, to mostly postoperative cases. It would be interesting to know under what conditions I.V. Acetaminophen should be administered to patients. What procedures were followed? Why? There are very young to very old patients who encounter the need for surgery. How should it be given? In actual experiences, was it safe to administer the use of this analgesic to any of such patients? What are the chances of having a satisfied postoperative patient after using Ofirmev? For one thing, doctors excluded patients with symptoms pointing to contraindications against the use of Intravenous Acetaminophen. These are situations wherein patients have severe liver disease, hepatic impairment and active hepatic disease, allergic to acetaminophen, chronic malnutrition, severe renal impairment, and to patients with history of being al coholic. The US FDA (2012a) announced that the limitation per dosage of acetaminophen should be 325 mg. while the total maximum dosage per day must not exceed 4 grams. For infants, the recommended dose of the US FDA for acetaminophen in vial is only 50 mL per child weighing less than 33 kg. (US FDA 2012b, p.12) There were cases of acetaminophen over dosages in infants and adults in the past. For adults, from 1998 to 2003, a total of 131 people experienced â€Å"acute liver failure in the United States† due to acetaminophen overdose (US FDA 2012a). Nonetheless, the medical practice has changed from using mostly opioids like morphine and non-steroidal anti-inflammatory drugs (NSAIDs) to the preferred use of Intravenous Acetaminophen in combination with less opioids only when needed, for reasons that will be disclosed in this paper. Problem and Purpose Quality management of postoperative pain requires provisions for the comfortable recovery of patients right after surgery. Unfor tunately, the use of opioids to

Ethics Research Paper Example | Topics and Well Written Essays - 750 words

Ethics - Research Paper Example Research ethics can be defined as the application of basic ethical principles to the subject of study. It includes designing and implementation of the research, human trialing, experimentation on animals, and various other aspects of research. It is also very much crucial to consider the ethical codes prior to carry out the task of research design for data collection. Generally there are three objectives in a research ethics they are protecting the participants, conducting the research in such a way that it serves the purpose of the society on a whole and finally to ensure that research actions are ethically sound. However in the context of social and behavioral research there are many incidents where we find there is a lack of ethical soundness in the research. History of Ethical Principles in Research The Nuremberg trial addressed the experimentation of human being in the context of patient’s right and protection of the human subjects. The code includes:- a) Researches that are based on human must be trialed on animals. b) Risks should be according to the perceived benefits. c) The researches that are based on humans must be carried out by qualified research. ... Belmont Report The Belmont report was developed by ‘National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research’. It was issued during the year 1979 (â€Å"The Belmont Report†). The report summarizes the primary ethical principles and guidelines that should help in the process of determining the ethical issues. The report is divided into two sections namely 1) Limitations between research and practice. 2) Fundamental ethical principles. Regulations and Social and Behavioral Sciences A research review committee is an Institutional Review Board (IRB) must make certain that human research subject needs to be protected. Therefore the questions that should be asked are:- Is the subject of study reasonable? Whether the risks are minimized or not? Whether the risks are justified according to the benefits? Is there a map to control and monitor the security and safety of the subject of study? Assessing Risk in Social and Behavioral Scienc e There are many associated risks with the study of social and behavioral science. Therefore some of the possible risks could be violation of confidentiality, breach of the procedure of study, inaccurate predictions and also the gauged result. However the risks are actually psychological, social, economical and sometimes physical. Informed Consent The participants of the research study must be given sufficient information regarding the study so that they can decide whether to take part or not. They should be informed because the research needs continuous involvement of the participants. Privacy and Confidentiality Any psychological or behavioral research needs high privacy as it mostly deals with secret matters. Moreover discretion and solitude is an important factor in research (Dantzker and

Intravenous Paracetamol to manage pain Research Proposal

Intravenous Paracetamol to manage pain - Research Proposal Example Patients are bound to experience pain after the effect of anaesthesia given before surgery is finally gone. White et al (2010) had reported a result of surveys in Europe and the USA, stating the need to improve the quality of managing pain after surgeries. The practice then was to use opioids which have multiple adverse effects (AEs): constipation, urinary retention, vomiting/nausea, allergic reactions, confusion, sedation, respiratory depression, and hypotension. These AEs increased the cost of hospitalization and delayed the recovery of patients. A better way of managing pain was then under clinical trials for 15 years. It involved the use of analgesics that require less opioids. There was no FDA approved Intravenous Acetaminophen at that time. Cadence Pharmaceuticals Inc. patented the first I.V. Paracetamol in July 8, 2011 (US SEC 2011) and produced Ofirmev which, until the present, does not have a competitor worldwide due to the recognized protection for intellectual property. Th is gathered evidence about the efficacy and safety of using Ofirmev (the only available US FDA approved Intravenous Acetaminophen in the market), how it benefits patients, and actually improved the quality of pain management. There were evidences based on actual clinical trials with patients that proved the efficacy and safety of Intravenous Paracetamol to neonates, infants, children, adolescents, adults, and even the elderly with age 65 years old and above, for mild, moderate, and severe cases of pain, especially postoperative pain. Introduction Focus is given to the extent of actual benefits observed in many clinical trials, limitations, and clarifications pertaining to the use of I.V. Paracetamol use for postoperative pain management. As a background, over a year after the introduction of the US FDA approved injectable pain reliever under the brand name Ofirmev, doctors have pursued further clinical trials in Europe and the USA covering thousands of patients. One of the reference s of this paper took the effort to search for registered clinical trials in order to learn more about efficacy, safety, proportion of patients who responded favourably or not, to mostly postoperative cases. It would be interesting to know under what conditions I.V. Acetaminophen should be administered to patients. What procedures were followed? Why? There are very young to very old patients who encounter the need for surgery. How should it be given? In actual experiences, was it safe to administer the use of this analgesic to any of such patients? What are the chances of having a satisfied postoperative patient after using Ofirmev? For one thing, doctors excluded patients with symptoms pointing to contraindications against the use of Intravenous Acetaminophen. These are situations wherein patients have severe liver disease, hepatic impairment and active hepatic disease, allergic to acetaminophen, chronic malnutrition, severe renal impairment, and to patients with history of being al coholic. The US FDA (2012a) announced that the limitation per dosage of acetaminophen should be 325 mg. while the total maximum dosage per day must not exceed 4 grams. For infants, the recommended dose of the US FDA for acetaminophen in vial is only 50 mL per child weighing less than 33 kg. (US FDA 2012b, p.12) There were cases of acetaminophen over dosages in infants and adults in the past. For adults, from 1998 to 2003, a total of 131 people experienced â€Å"acute liver failure in the United States† due to acetaminophen overdose (US FDA 2012a). Nonetheless, the medical practice has changed from using mostly opioids like morphine and non-steroidal anti-inflammatory drugs (NSAIDs) to the preferred use of Intravenous Acetaminophen in combination with less opioids only when needed, for reasons that will be disclosed in this paper. Problem and Purpose Quality management of postoperative pain requires provisions for the comfortable recovery of patients right after surgery. Unfor tunately, the use of opioids to

Axiom Strategic Communications Essay Example | Topics and Well Written Essays - 2000 words

Axiom Strategic Communications - Essay Example This strategy redefines the current situation about the hearing problem in Australia and how the Australian Hearing organization contends to deal with the ever-increasing cases in the country. The organization focuses on hearing impairment for â€Å"Children and young adults under the age 21 years, Indigenous adults over 50 and aged pensioners and Veterans affected during their working experience† (Australian Hearing 2011). The majority of active clients attended to by specialists in all the years are between the ages 0-29 and 60-99, with the latter forming the highest percentage in both male and female subjects. This gives the reason why the entity forms an integral component in solving hearing loss problem in Australia and, thus, the organization to place itself strategically to solve these problems. The figure below shows the population by percentage of active clients attending the Australian Hearing by age group. This PR strategy seeks to position the Australian Hearing in a distinguishable manner vis-a-vis competitors in the hearing products and services. Through this, the organization sets industry standards and uses the most cost-effective and best value means of accomplishing its objectives to the target publics. A number of messages will be used to communicate the intentions of the organization. These will be through communicated through interactive social media platforms, brochures, and newsletters. The messages â€Å"Together we lead the world in giving our customers with the best hearing solutions† aims at putting the mission and vision of the organization a top agenda. Through this, the organization focuses on streamlining its procedures to be customer oriented to solve the specific impairments of the customer in question. The message â€Å"Setting the standards in Hearing health and auditory research† outline to the major objective that the organization is on the threshold of achieving. This posits that the specialists and management all work towards a collective motivation (Harris & Whalen, 2006, p. 107). The individuals are expected to convert all their energies and synergies towards setting the pace in the research and hearing health services provision.

Rate of Reaction and Yield Conversion | Experiment

Rate of Reaction and Yield Conversion | Experiment At the outset, the objective of this experiment is to scrutinize the rate of reaction and the yield conversion. And the foremost principal that should be applied in order to determine both rate of reaction and yield conversion is material balance for batch reactions. As the experiment go on, students are supposed to perceive the factors catering the yield, rate of reaction and also the conversion. According to the hypothesis of the experiment, with the increment of ethyl acetate (reactant) from 0.1M to 0.2M the rate of reaction should gradually increase, leading to an augmentation of the rate of reaction as well as the conversion of sodium acetate from sodium hydroxide. Secondly, the theories that students must be acquainted with is, batch reaction, conversion, rate of reaction, conductivity yield and saponification. Saponification is an essential theory that drive the whole experiment, as it function by hydrolyzing an ester, forming a acidic salt and alcohol. With the absence of the pertinent knowledge of saponification, the experiment will not be successful. Thirdly, the modus operandi of the experiment, it comprises of 3 focal steps, preparation of reactant, experimental arrangement and procedure to be carried out during experiment. Students are to be particularly vigilant during the experiment, as reactant given, contain some perilous substances that are detrimental to human body. Subsequently, with the use of two different concentration of acetyl acetate during the experiment, the result and calculation of yield and rate of reaction could be analyzed. The result tabularize based on the two different concentration should show a vast divergence. The 0.2M of ethyl acetate should possess a higher yield and rate of reaction according to the hypothesis of the experiment. Before proceeding to the conclusion, students are supposed to go through some discussion on the experiment. The points to be discussed are namely preventative measure and the factors affecting the rate of reaction. As a final point, the conclusion, it concludes whether the hypothesis of the experiment corresponds with the actual experiment performed. Tentatively the conclusion should support the hypothesis of the experiment, which is, as the concentration of ethyl acetate increases, the rate of reaction and conversion also increases. (Singapore Polytechnic 2009) Material balance with chemical reaction 1. Introduction 1.1 Background Over the years, heaps of researches have been done to capitalize on the yield, conversion and increase the rate of reaction. These three factors are the point in which have close connection with the profit of the company. By increasing the yield it means more production generate with a standard amount of reactant used. As for rate of reaction, rationally, the faster the rate of reaction the greater the production rate within a certain period. During the experiment, batch process is employed as a medium for chemical reaction between sodium hydroxide and ethyl acetate to take place. The reaction produces sodium acetate and ethanol every thirty minutes, recording was taken every one minutes to note down the conductivity values. The whole process of obtaining the product from sodium hydroxide and ethyl acetate, consist of batch process, closed system, law of conversion and also saponification reaction. Batch process, is a process when a fixed charge of raw material is introduced and the products withdrawn before the cycle repeat. A closed system is a system where no material crosses the system boundary. As for The Law of Conservation of Energy it states that energy cannot be created or destroyed, but can change its form. Lastly For unsteady state process, it means, not all of the conditions in the process remain constant with time or the flows in and out of the system can vary with time. 1.2 Aim The aim of this experiment on material balance with chemical reaction is to allow students to employ the principle of material balance with chemical reaction for batch reaction by determining the yield, conversion and reaction rate. The purpose is to allow students to understand the change of reaction, when the concentrated NaoH react with ethyl acetate in a reactor as time passes by. With the knowledge of it, we will then be able to understand the saponification reaction of NaoH with ethyl acetate solution. 1.3 Hypothesis The hypothesis of the experiment is that during the Saponification reaction between NaOH and Ethyl acetate solution in the reactor, the concentration of NaOH would decrease due to the number of NaOH molecules being used for the reaction to produce sodium acetate. Furthermore, by increasing the concentration of ethyl acetate, the rate of reaction will also be increased 2. Theory 2.1 Introduction of Theory The role of the theory below is to give a more detailed explanations on saponification, batch process, conversion, yield, rate of reaction and conductivity, so that is can allow students to have a better perception on the experiment. 2.2 Batch Process Batch process is a process in which a fixed charge of raw material is introduced and the product is withdrawn before the cycle repeat. During the experiment, batch process is employed, as reactants are put in to the system for thirty minutes for reaction to take place. After which products are withdrawn and the apparatus used are sluice before another batch of reactant are introduced again. Owing to the change in concentration and production of new product, the reaction is categories under unsteady state. (Singapore Polytechnic 2009) 2.3 Saponification Saponification is defined as a process where ester is hydrolyzed, forming an acid salt and an alcohol. For this experiment, students are suppose to apply the knowledge they acquired on saponification and react ethyl acetate and sodium hydroxide and to produce sodium acetate and ethanol as the product of the reaction. Sodium acetate is form due to the displacement reaction which occurred during the overall reaction. The hydrogen in ester is displaced by the sodium ion in the sodium hydroxide, thus forming an acid salt; sodium acetate. The reaction is irreversible, hence once the product is formed, it cannot be re reacted to form the initial state of sodium hydroxide and ethyl acetate. However, reaction could be accelerated with the use of a strong acid (concentrated sulphuric acid) as the catalyst of the reaction. (Richard Hamner, Green Mountain Soap Company 2006) 2.4 Conversion Conversion is a technique, when a feed is converted to products. The term conversion can also be defined mathematically as percentage conversion. Percentage conversion is derived by dividing; moles of key reactant that react, with mole of feed introduced and multiply it with 100%. A 100% conversion is not likely to occur in the lab, this is due to the restrain of mechanism, which deprived the ideal conversion to transpire. (Singapore Polytechnic 2009) 2.5 Yield There are copious definitions for yield. The three generally prevalent definitions are yield based on feed, yield based on the reactant consumed and lastly yield based on the theoretical consumption of the limiting reactant. These three definitions are usually employed by chemical engineering industrial to guesstimate the yield of the products. Yield based on feed are exemplify to be; amount of desired product obtained, divided by amount of key reactant (limiting reactant fed). As for yield based on the reactant consumed, it is depict as; amount of desired products obtained, divided by amount of the key reactant consumed. Lastly as for yield based on the theoretical consumption of the limiting reactant; it is elucidate as; amount of product obtained, divided by the theoretical amount of products that would be obtained based on the limiting reactant if limiting reactant react completely. The usage of the formula varies from the given information. (Singapore Polytechnic 2009) 2.6 Rate of Reaction Rate of reaction is the speed of the overall reaction; it can be affected by temperature, conductivity, pressure, concentration surface area, and also catalyst. 2.6.1 Temperature Temperature will radically affect the rate of reaction. The collision of particles is determined by the energy a particle possessed. With a higher temperature, it will cater the particles to have a higher energy, hence increase the effectiveness of collision, and eventually resulting to a faster rate of reaction (Redspot Publishing 2005). 2.6.2 Pressure Pressure is defined as a condition of being compress. The increase of pressure will cater to a faster rate of reaction as the areas the particle have are smaller after compression. This therefore causes particle of be closely packet together which result to a higher frequency of collision between gaseous molecules. However, the increase of pressure is only applicable for gaseous molecules, as liquid and solid cannot be compressed (Redspot Publishing 2005). 2.6.3 Concentration Increases of concentration mean that the presences of particles in a specific volume have increased. While the volume/ space remained constant, the quantity of the particles increases, these instigate the frequency of collision to be higher, and also enhancing in the effectiveness of collision. This effect on particles collision will encourage a faster rate of reaction during the reaction (Redspot Publishing 2005). 2.6.4 Surface Area to Volume Ratio The bigger the size of the particles, the smaller the surface area for collision of particles, whereas, when the particles sizes are reduced, the chances of particles colliding in to each other will be higher. This is due to the increases in surface area of particles with it size are being reduce. Rate of reaction will therefore increases as frequency of collision increased (Redspot Publishing 2005). 2.6.5 Presence of Catalyst Catalyst is defined as a substance that is capable of reducing the activation energy of particles without itself taking part in the reaction. Therefore with the presence of a catalyst, particles will have a higher energy than the activation energy. These will lead to a higher frequency of collision and also the much more effective collision. Rate of reaction will gradually increases with more collision taking place (Redspot Publishing 2005). 2.7 Conductivity The conductivity values of sodium hydroxide is tantamount to the conductivity values of the solution, as the conductivity values of other reactants such as ethyl acetate, sodium hydroxide and ethanol are inconsequential. With the conductivity values of the solution ascertained, the concentration of sodium hydroxide in the reacting mixture can then be determined. The rate on how fast concentration of sodium hydroxide is depleting can that be easily achieved, by tabulating a graph (Copyright 2009 Russell Mainstream Supply Ltd) 3. Procedure 3.1 Preparation of Starting Reactant Before beginning with the experiment, students should go through and understand the Material Safety Data Sheet (MSDS) of sodium hydroxide and ethyl acetate. The understanding of the data sheet is imperative as, without apposite understanding on the chemical used, perilous hazard might occur. The procedure on handling and disposal of chemical must be habituated before the beginning of the experiment. Students are handling with highly acidic concentrated reactant, therefore, disposable glove and chemical goggles should be putted on at all time during the experiment. 500mL of 0.01M of sodium hydroxide solution and 500mL of 0.01M ethyl acetate was the concentration needed to be prepared for this experiment. 500mL of 0.01M sodium hydroxide are suppose to be prepared, to do so, measuring cylinder was used to measure the required volume of 0.01M NaOH and poured in to a 500mL volumetric flask. De ionized water is poured in to the 500mL mark on the volumetric flask for dilution purposes. To ensure a fine dilution, flask should be covered with stopper and shake to ensure solution properly mixed. Preparation of 500mL of ethyl acetate solution was done by pouring 250mL of de ionized water into a 500mL volumetric flask, followed by measuring the stock solution using a micropipettor and dispenses it to the 500mL volumetric flask. Top up solution up to 500mL mark, and cover it with a stopper and shake the solution to ensure solution is well mixed. Experimental Setup Conductivity meter 1-litre reaction beaker Magnetic stirring device Conductivity probe Reacting mixture Retort stand Procedure During Experiment As the preparation of the sodium hydroxide solution is completed, solution is poured in to the reactor with the reaction conditions adjusted to predetermined level. The reaction conditions are directly related to the overall reactions; hence the recording of the condition is essential. Examples of the condition are, temperature, stirring speed, concentration and volume of reactions. Before the stirring process inaugurate, ensure that the conductivity meter probe is positioned into the reacting mixture and a stopwatch is ready for timing purposes. Ethyl acetate is to be poured in to the reactor, and recording should start immediately. While the solution is being stirred in the reactors, conductivity values are recorded at a regular interval of one minute for thirty minutes. After thirty minutes, reactor is stopped and a magnetic rod is used, to remove the magnetic stir bar in the reactor. The conductivity probe is then withdrawn and sluiced scrupulously with de ionized water. As for t he product, it is being disposed into a plastic waste container. The experiment is to be repeated based on the experimental methodology discussed with lecturer. However, to ensure consistency of the experiment, all glassware is to be rinsed. Once all the experiment is accomplished, all the equipments should be properly cleaned and chemical used are to be disposed in to the plastic waste container. Finally waste will be send to W314 for proper treatment before discarding and glassware used should be placed back to original location. Result and Calculation 4.2 Determination of the Yield of Sodium Acetate Determination of the yield of sodium acetate is associated with the concentration of sodium hydroxide. In tandem with the given information on the concentration of sodium hydroxide, the molar ratio employed can be dexterously deciphered. From here, calculation to verify the yield can be facilely obtained by using the mole, which is calculated using the molar ratio of sodium hydroxide and ethyl acetate. Finally, utilize the formula of yield calculation and the determination of the yield of sodium acetate can be anatomized. 4.3 Yield and Rate of Conversion of 0.01M Ethyl Acetate Solution for 15 Minutes. Concentration of sodium hydroxide at one minute interval NaOH + CH3COOC2H5 à   C2H5OH + CH3COONa Theoretical Mole of NaOH = 0.01 X 0.5L = 0.005 mol Actual Mole of NaOH = 0.00156 X 0.5L = 0.00078mol Number of moles reacted = 0.005 0.00078 = 0.00422mol Conversion of NaOH= 0.00422/0.005 X 100% = 84.4% Theoretically, since 1 mole of NaOH react and form 1 mole of CH3COONa, actual mole of CH3COONa= 0.00078 Yield of CH3COONa= 0.00078/0.005 =0.156 4.4 Yield and Rate of Conversion of 0.02M Ethyl Acetate Solution for 15 Minutes Figure 4.4.2. Graph showing concentration of sodium hydroxide against time (0.02M of ethyl acetate used) NaOH + CH3COOC2H5 à   C2H5OH + CH3COONa Set 2 Theoretical mole of NaOH = 0.02 X 0.5L = 0.01 mol Actual mole of NaOH = 0.0017 X 0.5L = 0.00085mol Number of moles reacted = 0.01 0.00085 = 0.00915mol Conversion of NaOH= 0.00915/0.01 X 100% = 91.5% Theoretically, since 1 mole of NaOH react and form 1 mole of CH3COONa, actual mole of CH3COONa= 0.00085 Yield of CH3COONa= 0.00085/0.01 =0.085 4.5 Rate of Reaction of 0.01M of Ethyl Acetate Graph 4.5.1. Shows the rate of reaction of sodium hydroxide when 0.01M of ethyl acetate was added. Graph shown above is straight line. Gradient= 0.00265-0.0012 à · 20 1 = 0.0000763 (From the graph) 4.6 Rate of Reaction of 0.02M of Ethyl Acetate Graph 4.6.1.Shows the rate of reaction of sodium hydroxide when 0.02M of ethyl acetate was added. Graph shown above is straight line. Gradient= 0.00275 0.00125 à · 20 1 = 0.0000789 (From the graph) 5. Discussion 5.1 Factors Affecting Rate of Reaction As indicated above, there are numerous factors that are capable of affecting the rate of reaction however; the only applicable one is the differences in concentration as the rest (temperature and pressure) are kept constant. Based on the experiment did, as the volume and concentration increases, the rate of reaction also increases, this is   by virtue of the presence of more particles in the solution, hence increasing the chances of particles colliding to each other, which eventually result in an increase in the rate of reaction. Below is a graph to further elaborate on the explanation on the difference in concentration. The judgment on the rate of reaction is based on the steepness of the graph. As shown, the black line which contains 0.02M of ethyl acetate has a slower rate of reaction as compared to the one in red which is 0.01M of ethyl acetate. This repudiated the hypothesis of this experiment. The dialectics of this contradiction is, there might be source of contaminant on apparatus or solution used. 5.2 Factors Affecting Conversion and Yield The ideal rate of conversion and yield will never be actualize under school environment or even in industries. As, in school students are using eye sight as a gauge for the experiment which indubitably cause error due to parallax error, as for industries, despite being able to afford high cost machines and computer, the cunctation between human and machines will cause an slight differ on the rate of conversion and yield. 5.3 Factors Affecting Conductivity Values As mention on the theory section, the conductivity values of ethyl acetate are imperceptible; therefore the conductivity rate of sodium hydroxide is employed instead. During the experiment, 2 different concentration of ethyl acetate was used. The first set of experiment, we used a concentration of 0.01M. It produces a constant decreasing rate at every one minute interval. This shows that while the moles of sodium hydroxide are depleting, conductivity value to decreases too. As for the second set of experiment, the same things occurred but at a same rate as the first set of the experiment. This contravene the theory, as suppositionally, the increases in concentration to 0.02M will cause the moles of sodium hydroxide to deplete at a faster rate, which result to a faster decreasing rate for conductivity. Again, the dialectics of this contradiction is, there might be source of contaminant on apparatus or solution used. 5.4 Precaution in Experiment As we all know, ethyl acetate are very volatile, it release harmful gas when it is expose to the environments. Therefore, adding of ethyl acetate into the volume metric flask must be carried out in the fume hood to prevent students from inhaling gases produced from ethyl acetate, which is harmful to human body. In addition, safety goggles and rubber gloves should be worn at all times during the experiment. This help to prevent students from having direct contact with the acid which might cause skin irritation of temporary loss of vision. 5.5 Comparison of Two Different Tests As two different concentrations were employed during the experiments, the result on yield and conversion rate will be different. 5.5.1 Comparison of the Yield of Two Different Tests Upon completion of experiments, the differences in yield were realised. The yield of 0.01M ethyl acetate was 0.156 and the yield of 0.02M ethyl acetate is 0.085. Theoretically, due to the increment in concentration, the yield of 0.02M of ethyl acetate should be higher as, since more reactants is used; it will rightfully result in more products being formed. However, as mention above, there might be chances of the reactants or apparatus used being contaminated, which result in the huge differences between the yields. 5.5.2 Comparison of the Conversion Rate The conversion rate of 0.01M of ethyl acetate was 84.4% and the conversion rate of 0.02M of ethyl acetate was 91.5%. The result shown was excellent, as high conversion rate will mean that, majority of the reactant was fully utilized, hence saving cost. 6. Conclusion Based on experiment, I can construe that the higher the concentration of ethyl acetate, it will result to a much faster rate of reaction, and a higher rate of conversion. The conductivity value is interred related and proportioned to the concentration of sodium hydroxide. Therefore, since observation and hypothesis are similar, the hypothesis is true. The aim of the experiment are also fulfilled, as scrutiny of the experiment have verify that, while the concentration of ethyl acetate got higher, the rate of reaction and rate of conversion increases. In addition, adding of catalyst or increasing surrounding temperature could also result in a faster rate of reaction which tantamount to an increment in rate of conversion.

Eliza as a Strong, Assertive Woman in Pygmalion Essay -- George Bernar

Eliza as a Strong, Assertive Woman in Pygmalion Bernard Shaw’s comedy Pygmalion presents the journey of an impoverished flower girl into London’s society of the early 20th century. Professor Higgins proposes a wager to his friend Colonel Pickering that he can take a common peddler and transform her into royalty. Eliza Doolittle is the pawn in the wager. But little does Higgins know the change will go far beyond his expectations: Eliza transforms from a defensive insecure girl to a fully confident,strong, and independent woman. When the audience first meets Eliza Doolittle she is a flower girl peddling at 11 PM in front of St. Paul’s Church. The audience’s first impression is one of sympathy because she is dressed in rags and pedestrians are unkind to her. Higgins calls Eliza "you squashed cabbage leaf, you disgrace to the noble architecture of these columns, you incarnate insult to the English language." (p. 21) The audience’s sympathy is intensified when we see Eliza’s wretched lodgings. These lodgings are much contrasted to those of Higgins in Wimploe S...