Wednesday, October 30, 2019
SWOT analysis Assignment Example | Topics and Well Written Essays - 500 words
SWOT analysis - Assignment Example As the CEO of the Samsung smart Phone Company and based on the analysis of strengths, weaknesses, opportunity and threats I would focus mainly on improving on the areas that pose a challenge to the company to ensure that my competitors do not face the Samsung Company out of the market. I would also improve on the quality of my products, hardware and also the operating systems. Additionally, I would take advantage of the opportunities open to the company to see on how I can incorporate them in the operations of the company so as to release better and improved products. Consequently, I would also create a business environment that is ready to accept technological change as the world is dynamic and it keeps on changing and therefore the use of modern technology will result in improved and new products in the market. This ensures that the company will be able to stand the heat from its competitors. Lastly, SWOT analysis aids the company in knowing the attitude of its customers by how they purchase the product; this will ensure that the company continues to improve on their
Monday, October 28, 2019
Kite Runner response text analyses Essay Example for Free
Kite Runner response text analyses Essay The Kite Runner tells us, through Rahkim Khan that, True redemption is when guilt leads to good again Rahkim Khan states. Throughout the course of The Kite Runner there are many characters that have committed sins and subsequently attempted to redeem themselves. The Kite Runner structured around main characters, Amir and Baba and their acts of betrayal. The impact of these acts continues to be felt throughout the novel manifesting itself in Amirs guilt ridden narrative. However, guilt is not enough. The need for redemption and atonement is what these characters seek. There is away to be good again the kite runner shows that this is along painful but ultimately positive journey. Amirs feelings of guilt spring from incidents of betrayal throughout his childhood. Since 1975 when Amir watched as Hassan was raped in an alleyway by Assef, I ran because I was coward. I was afraid of Assef and what he would do to me Amir feels guilty for his cowardice s but it was not fear that drove him away the real reason Amir ran was Baba. Amir was so envious of Baba and Hassans friendship that he thought Assef was right. Maybe Hassan was the price I had to pay the lamb I had to slay to win Baba. He was just a Hazara wasnt he? This event not only affected Hassan and Amirs friend ship but still made Amir highly jealous of Babas concern for Hassan, I havent seen much of Hassan in the last few days Baba said I couldnt help hating the way his brow furrowed with worry Amirs selfish personality handy caps his chance to be good again and redeem himself for the past. Amir places Hassan in the position to be framed and sets him up for theft of Amirs birthday presents, this incident clearly shows that Amir approaches atonement the wrong way. I lifted Hassans mattress and planted my new watch and a handful of afghani bills under it then I knocked on babas door and told what I hoped would be the last in a long line of shameful lies. Hassans loyalty leads to Ali and his departure to grant Amirs wish, I wanted Baba all to myself Amirs actions changed his and Babas life forever. Amir has stolen his fathers right to a best friend, his relationship with his hidden son and taken away Ali and Hassans job and security within their family. In many respects, Amirs adult personality is now the direct result of this childhood, feelings of guilt and betrayal. Amir attempts to redeem himself by planting money in Fahibs family house I did something I had done 26 years earlier: I planted a fistful of crumpled money under a mattress. He also tries to ally his feelings of guilt by taking Sohrab out of Afghanistan and back to America, the way he should have done with Hassan. In All Amirs efforts, he does become a better person once he is situated in America however he doesnt redeem himself for what he did as a child. Nothing will, It didnt make everything all right, it didnt make everything all right. Amir is not all to blame for his insecurity and lack of self-esteem, this personality is the result of Babas bad parenting. If I hadnt seen the doctor pull him out of my wife with my own eyes, Id never believe hes my son. Baba is not a supporting father towards Amir or Hassan. Throughout the book, Baba tries to redeem and atone himself for neglecting a secret child. He attempts to achieve this by raising Hassan equality to Amir however by doing this it disallows Baba to be close to Amir as feelings of guilt towards Hassan arise; hence taking the right to a loving family away from Amir and Hassan, for not speaking the truth. Babas betrayal is directed at Ali for sleeping with his wife. Theres only one sin and that is theft. Every other sin is a variation of theft Baba illustrates his deduction to atone for his actions using his wealth he builds and orphanage for illegitimate or orphaned children. Baba feeds the poor with his ceremonial lamb money. Baba also using his courage and urge to fight for what is right this is evident when he protects the afghani women in chapter ten from the Russian soldier, ill take a thousand of his bullets before I let this indecency take place. Babas decision to abandon home and his country are a evident sign of sacrifice to secure Amirs long-term welfare and happiness. His attempts of redemption and atonement to be good again result in his feelings of achievement the day that he dies. Tonight I am much too happy If The Kite Runner tells us anything it is that redemption is a life long task, through which a person seeks to become Good Again. A person needs to forgive themselves of their sins and absolve them of guilt in order to go on living their lives. Throughout the corse of The kite Runner, we learn that guilt is not enough. To be good again is more than the journey of redemption and atonement it is the destination.
Saturday, October 26, 2019
My First Time on a Plane - Personal Narrative Essay -- Papers
My First Time on a Plane - Personal Narrative When I was seven years old I went on my very first holiday abroad, to America. I can remember waking up at Five o'clock in the morning to catch an early flight from Heathrow airport. I was so excited I forgot about the daunting effort of getting up so early. My Mum, Dad, Brother, grandparents and I set off on the long journey to the airport, then Orlando Florida. I remember the white taxi van used to transport us to the airport with its incredibly tiny seats, which made getting any sleep impossible. Sitting next to my brother, who was in a very irritable and annoying mood, made this slightly harder. There had been a major accident on the motorway that held me in suspense not knowing whether we would get there in time to catch the flight. When we finally arrived at the airport my brother was ordered to go and find a luggage trolley, which I remember he was very unenthusiastic about doing. The only part of checking in I can remember is when my Gran couldn't understand a word the Pakistani steward said only made worse by my Gran's hearing impediment. The eleven-hour flight over to America was one of the most exciting parts of the holiday for me. Trying to work out how to put the seat belt into the little lock contraption puzzled me for a while. Even though it was so long ago the thought of playing games on the plane with the onboard games console still excites me today. After about five hours of exploring the onboard entertainment, it all got a little boring. So I turned to looking out the window and asking my granddad what was below us for entertainment. I remember asking my gran... ...hird day my mum insisted that we visit sea world that you can see back in the U.K. but we went anyway and saw a huge whale in a really small tank. But we were assured 'he loves it here'. I was not convinced. The rest of the holiday we spent in Miami. When we arrived in Miami the first place we went to was Palm Beach, which was slightly better than the littered beaches at home. The sand was bright yellow and the water was really blue. Miami, despite its much-hyped reputation is a very strange place. Before I knew it, the holiday was over and we were travelling back to Britain. The eleven-hour journey flew past. When we arrived back in Britain, I didn't know what day it was. So we all slept continuously for three days. The holiday was the best holiday abroad I have ever had and would really like to go back again.
Thursday, October 24, 2019
America Favorite Car Brand
An automobile is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods. Basically, automobiles stand a very important position in this society.A survey conducted from February 10th to February 13th, 2013 by researchers at Lab42 found that of 500 American car buyers, the Toyota car brand occupies the first position in terms of brand loyalty with consumers. Consumers are loyal first to the Toyota brand than to any other car brand. According to this survey the second and third positions are occupied by Chevrolet and Honda respectively. The survey focused on the fuel economy, driver ease, dependability, and second hade value.Toyota Motor Company will be the most loyalty-inducing brand in the United States. Besides Toyota and Honda, there are few more company were participate in this survey such as Ford, Nissan, Mazda, and others. When Americans think of repeat car buying they seek out Toyota. Toyota Americaââ¬â¢s favorite car brand is also top of mind when making new car purchases. The Toyota brand has commonly been known to be excellent in the following seven areas: safety, performance, value, design, environmental friendliness and technology.Descriptive research is very common in business and other aspects of life and most of the marketing research we have heard about or participated in can be categorized as descriptive research (Brown, 2012, p. 33). Basically, this purpose of this survey is to know what customers prefer and why. References Brown, T. J. , & Suter, T. (2012). MR. Ohio: Mason. Epstein, Z. (2013). Trouble Brewing for Apple: Survey says half of IPhone users in China ââ¬Ëwant to ownââ¬â¢ Galaxy S4. Retrieved from http://bgr. com/2013/04/15/iphone-galaxy- s4-survey-china-439099/
Wednesday, October 23, 2019
Going Green in Hospitality
Hospitality Studies Report GOING GREEN IN THE HOSPITALITY INDUSTRY Word count: 1328 ? Introduction3 Benefits3 Are there actually disadvantage of staying the same? 3 The definite advantages of changing3 What people think4 Are there side effects? 4 Knowledge aquired4 Financial5 Conclusion5 Bibliography6 ? Introduction The effects of global warming continue generating intense debate among businesses that see it as a major threat to their operations.In this regard the global community is seeking partnerships with governments and other stakeholders to formulate policy guidelines that will act as means of ensuring that they adopt green technology in their operations to counter this threat. Failure to do this will result to irreversible decline in profits, deterioration of peopleââ¬â¢s health through emergence of killer diseases like skin cancer and closure of businesses. Benefits The hospitality industry has not been left out in adopting green technologies in their operations to ensure they slay this global phenomenon.In doing this they have realized the immense benefits that come with the green technology in almost all areas of their industry. The use of renewable power like solar energy, wind power and bio fuels reduces the energy costs incurred in the hospitality industry a great deal. Due to their nature of operations they require power throughout; when preparing food, entertaining guests and also when cleaning. This therefore means they incur huge electricity bills through out and this can be reduced by the adaptation of green technology.Installation of solar panels or wind power can reduce these expenses in a great way and this can increase their profits and enable investment in other projects like expansion. Are there actually disadvantage of staying the same? The use of green technology reduces the pollution of the environment. The damage that is usually done to the environment when hotels use petroleum products is very catastrophic. They use the product o n large quantities especially in cooking.Diesel products for instance emit a lot of hydrocarbons into the air that cause global warming, which is known to hamper marine life and make some species of the marine bio diversity extinct. This affects the product range available for offer to their clients. They also poison most fish species which make them unfit for human consumption. These diesel emissions are also known to be carcinogenic and cause a lot of cancer related ailments that pose a very great danger to the workers in the industry and to the whole world at large.However all this can be avoided if the industry adopts green technology. There are no side effects of using green energy since they are environmentally friendly and they use ecologically friendly resources. The definite advantages of changing The industry has also come alive to the fact that ecotourism is a major attraction to many people who want to conserve the world we live in. (Hotelinteractive. com. 2008) People a ppreciate and value those involved in environmental conservation and most like being associated with them.Many organizations and governments prefer holding their meetings and conferences in venues that are accredited by environmental conservation agencies as compliant to set green standards. The hospitality industry being a major player in this field does not want to be left behind. This is because those who comply and champion these interests will attract wide clientele and this will be a major boost to their businesses. Many players in the industry have sought to comply with the set standards to ensure they remain competitive in the industry.The industry has therefore invested heavily in imparting the required knowledge and skills to its staff and other stakeholders to ensure best practices. They are then seeking certification from recognized regulatory institutions that also continuously monitor their progress through regular visits and checks. What people think The adoption of g reen technology by the hospitality industry improves the public image and the perceptions that people have towards the industry. ââ¬Å"Going green is no longer a request, but rather a demand. â⬠( Nowpublic. com. 008) The world today is doing everything to combat global warming which is seen as a major threat to future earnings of almost each sector in the global economy. This will also attract a lot of customers to those who will be seen to be compliant. The hospitality industry is therefore viewed as one of the environmentally sensitive industries and this places it strategically on the global arena of attaining sustainable development. Are there side effects? The players in the hospitality industry must embrace the use of renewable sources of energy like wind power and solar energy.Such installations will ensure minimal environmental pollution and also availability throughout. This is because the sources such as sun and wind are naturally available and apart from installati on costs and routine maintenance there are no other major associated costs. The electricity bills and the costs of running stand-by generators will be done away with and profits will increase both in the short and in the long run. Knowledge aquired The industry players should also minimize the amount of wastes that is usually dumped. This can be done through recycling most of these wastes.For example , a hotel can recycle waste paper into scratch pads, the cartridges used by printers and fax machines can be refilled when empty instead of being dumped, they can also install soap and shampoo dispensers in their facilities to reduce the waste from small plastic bottles, they can also replace toxic and hazardous cleaning agents with good friendlier biodegradable cleaners, they can also donate reusable dishes and other cutlery to charities instead of dumping and also they should install recyclable bins in all areas for collection of waste cans and plastics.When these measures are underta ken, the industry will enjoy the enormous benefits associated with the green technology. The industry players should also invest heavily in the provision of skills and knowledge to the stakeholders who must be involved in the attainment of desired objectives. The stakeholders are mainly their workers, customers and also their suppliers. They should organize workshops and seminars to educate them on the necessity of adopting the green technology.When they fully understand the benefits they will commit to observe and adhere to the standards set in the industry and this will ensure attainment of desired results.? Financial The adoption of the above measures will nonetheless be an uphill task to most of the players in the hospitality industry. Most of these measures like installing and maintaining solar and wind energy systems require huge budgets and skilled workers. Most of the players in the industry are midlevel enterprises that lack the financial ability to manage such capital-inte nsive projects.Also those who carry out these projects may take a long time to recover and return to profitability. Nonetheless the hotels will save BIG money in the end. Conclusion The green technology should be implemented by all the industries not only the hospitality industry. This will enhance the realization of the aspired results which will guarantee the global population of a better environment to live in. This is because global warming is a major threat to all industries regardless of the area of specialization. Failure by the industry players to implement these policies will be threatening the same businesses they rely on. Reference List Patrice A Kelly (2008) So you want to go green [Internet] Available from: http://www. hotelinteractive. com/article. aspx? articleid=12180 [Accessed 2 May, 2012] Commonwealth of Pennsylvania â⬠¢ Department of environmental protection (Unknown) Fact Sheet [Internet] Available from: http://www. google. com/url? sa=t&rct=j&q=&esrc=s&sourc e=web&cd=2&sqi=2&ved=0CCsQFjAB&url=http%3A%2F%2Finfohouse. p2ric. org%2Fr ef%2F03%2F02592. pdf&ei=mcWiT6X9HMTsOdbgmd0I&usg=AFQjCNGbSE_1baXV5YwYwqMxCkhfrYUsUg [Accessed 30 April, 2012]Ursula Tillmann (2008) Hotels going ââ¬Å"Greenâ⬠demanded by guests [Internet] Available from: http://www. nowpublic. com/environment/hotels-going-green-demanded-guests [Accessed 2 May, 2012] Roza Gazsi (2011) Hotels going green ââ¬â So much more than a pleasant stay [Internet] Available from: http://www. ecowizer. com/2011/03/hotels-going-green-so-much-more-than-a-pleasant-stay/ [Accessed 3 May, 2012] Epa. gov (2011) Why go green [Internet] Available from: http://www. epa. gov/region2/p2/hospitality/why/index. html [Accessed 3 May, 2012] Bibliorgaphy Gogreencleaning. bravehost. om (Unknown) Go green! Cleaning products [Online Image] Available from: http://www. google. com/imgres? um=1&hl=en&client=firefox-a&rls=org. mozilla:en-US:official&biw=1280&bih=657&tbm=isch&tbnid=xEbt0DfSpFO7FM:&imgre furl=http://www. gogreencleaning. bravehost. com/&docid=TTradC0z9xRMaM&imgurl=http://gogreencleaning. bravehost. com/myPictures/gogreen. jpg&w=390&h=448&ei=TdiiT8mXPMGfOufoqdMI&zoom=1&iact=hc&vpx=1032&vpy=93&dur=1870&hovh=241&hovw=209&tx=161&ty=150&sig=111890973347592325663&page=1&tbnh=125&tbnw=101&start=0&ndsp=21&ved=1t:429,r:6,s:0,i:158 [Accessed 3 May, 2012 ]
Tuesday, October 22, 2019
The Childrens Crusade Essays
The Childrens Crusade Essays The Childrens Crusade Paper The Childrens Crusade Paper James Millette Ms. Kelzer World History 11/28/11 By June, 1212 about 30,000 kids under the age of twelve had showed up to support and go on the journey to capture back the holy land. (Kreis, Steven) Even wealthy children had snuck outside of their families to join. The childrenââ¬â¢s crusade seemed like it would be successful and had good intention, but had a huge lack of sense of leadership and planning. He had led him and his army into a dispute against all factors of nature. At him being so young of age, that had also caught up with him. It has been said that the childrenââ¬â¢s crusade was a set up to try and shame the king and his army to go and fight for the holy land. The Crusades were a series of religious wars, blessed by the Pope and the Catholic Church with the main goal of restoring Christian access to the holy places in and near Jerusalem. The Crusades were originally started in response to a call from the leaders of the Byzantine Empire for help to fight Muslim Turks expanding into Anatolia, these Turks had cut off access to Jerusalem. The main series of Crusades occurred between 1095 and 1291. This Holy Land was extremely important to Christians because it was where Jesus Christ had lived. The church had taken the process a step further, claiming crusading as doing a sort of deed to God for sins that had been done. This created a desire to fight for Christianity, and a motivation that kept Western Europe in tact, causing thousands of ordinary people to join the cause. The origin of the Childrenââ¬â¢s Crusade however, was from the increase of religious feeling among the peasants and laymen. Mobs of children, who belonged to religious communities and carried the belief of recovering Jerusalemm had assembled. A boy named Stephen, who was twelve years old and was from Cloyes in the Orleannais. He was born out of a poor family, which was neglected in their town. He supposedly had come upon Christ while he was sleeping and was ordered to give a letter to the king and also preach the crusade. The king had turned him down, but Stephen began to go across town and he preached. His letter had told his followers that crossing obstacles like the sea would be easy for them: it said that the waterways would part and let them cross through. According to the church, this crusade wasnââ¬â¢t really a crusade because they werenââ¬â¢t blessed by a pope. The church believed they couldnââ¬â¢t bless if a crusade was bound to fail, but they thought that by sending these kids would put shame on the popes and make them actually put together a crusade and capture Jerusalem. The amount of inspiration Stephen had towards his religion was immeasurable. He had gone and preached promoting the crusade against Muslims of the east of Spain and had been turned down by nearly everyone who he had come across. After he had received the letter from Jesus he arrived at the entrance of Abbey of Saint-Dennis and had announced that he would lead an ââ¬Å"armyâ⬠of children to rescue the holy land. In the summer of 1212 three armies of children, each more than thirty thousand strong, setout from France and Germany, to walk to Jerusalem and rescue the Holy Sepulchre from the armies of Muslims. The leaders were children, boys only twelve or thirteen years old; they preached in churches, at shrines, and on highways. Now, this was an act that took major amounts of courage but children cannot lead other children and Stephen being only twelve years old, he wasnââ¬â¢t ready to lead either. When it comes to leadership, Stephen lacked highly in it as a whole. Mostly all of his army had set on foot and Stephen had designed a cart for himself. At his sides were several boys on horseback who were from richer families and could afford these things. It wasnââ¬â¢t fair to the other 30,000 kids that had to suffer on foot. Money distribution had become a huge issue. There was no money to buy food or water or any means of transportation anywhere. Stephen had also made his army believe that the sea would spread for them and they would be able to cross, none of this happened. A few days later, two merchants, Hugh the Iron and William the Pig, confronted Stephen with a deal. They offered to provide seven ships, to the mass of children, free of charge. All of the boys and girls boarded their ships and set out to Palestine. It took about 18 years until the story of the tragedy had been talked about The fact that Stephen was only twelve years old and had come from a poor peasant family really had an effect on his sense of power. It seemed as though people didnââ¬â¢t respect him. On top of that he didnââ¬â¢t know how to read nor write, he was in a way looked at as a fool even at such a young age. It was wrong for the king to even let him step foot out on his own. The morals of the king were that he would shame his own army into fighting the crusades, but this didnââ¬â¢t work and the king had sacrificed 30,000 other childrenââ¬â¢s lives. When there is a mass population of kids, disease also comes into play. As the journey went on, many kids became diseased and those diseases had carried to both the kids and the towns that they had traveled through. Before reaching the sea, over half of the army had either died from disease, starvation or heat exhaustion. This was considered a very painful journey, some kids had wandered off to seek food or just to go home. Since Stephen didnââ¬â¢t know how to read, for days even weeks the children wouldnââ¬â¢t hear from anyone and they had come across towns out of luck. Once reaching the city of Marseilles, they were kindly greeted and were given rooms to sleep in. Now these rooms were only given to the more wealthy, most of them stayed out on the streets and scavenged whatever food they could find. EBSCO Publishing Service Selection Page. Web. 13 Dec. 2011. The Childrens Crusade. History Learning Site. Web. 28 Nov. 2011. Childrenââ¬â¢s and Shepherdsââ¬â¢ Crusades: Were the Childrenââ¬â¢s and Shepherdsââ¬â¢ Crusades Class Protests of the Poor Against the Wealthy? History in Dispute. Ed. Mark T. Abate. Vol. 10: The Crusades, 1095-1291. Detroit: St. James Press, 2003. 32-39. Gale Virtual Reference Library. Web. 11 Nov. 2011. Kreis, Steven. The Childrens Crusades (1212). The History Guide Main. Web. 11 Nov. 2011
Monday, October 21, 2019
Finding the concentration of sodium carbonate Essay Example
Finding the concentration of sodium carbonate Essay Example Finding the concentration of sodium carbonate Paper Finding the concentration of sodium carbonate Paper Finding the concentration of sodium carbonate:Mass (Na2CO3 transferred to volumetric flask)= [mass (weighing bottle) + mass (Na2CO3)]-[mass(weighing bottle after emptying)]=15.24g 12.59g=2.65gMolar mass (Na2CO3)Na=23C=12O=162Na x 1C x 3O = molar mass= (2 x 23) + 16 + (3 x 16)=106Number of mols (Na2CO3) = mass/molar mass=2.65g/106=0.025molNumber of mols (Na2CO3) = concentration x volume10000.025 mol. = conc. x 250cm31000Concentration (Na2CO3) = 0.1 mol.dm-3ResultsTitrationInitial Burette Reading (cm3)Final Burette Reading (cm3)Difference (cm3)1 (rough)0.0032.0032.0025.0036.2531.2531.1032.3031.2040.0031.2531.25510.0044.3034.30The first and last results are not included in the average since the first is only a rough titration so that later ones can be more accurate and the last is an anomalous result.Therefore the average is:(31.25+31.20+31.25) / 3 = 31.23cm3We can now number of moles of calcium carbonate using this equation:Number of moles = concentration x volume1000=0.1251000=0.0025 mol.The following reaction took place:H2SO4(aq) + Na2CO3 (aq) Na2SO4 (aq) +H2O(l) + CO2 (g)There is a 1:1 ratio of sulphuric acid to sodium carbonate.Therefore the number of moles of H2SO4 will be the same as those of Na2CO3.Number of moles of H2SO4= 0.0025molsNow we can work out the concentration of H2SO4 with this equationNumber of moles = concentration x volume10000.0025 mol. = conc. x 25cm31000Concentration (H2SO4) = 0.08 mol.dm-3 (2 d.p.)Evaluating Evidence and procedures.The final titration was an anomalous result 34.30cm3. A result much larger than the average of 32.23cm3 (3.07cm3 larger). All the other results (apart from the first which is only a rough titration so that later ones can be more accurate) were 0.05 of the average.The anomalous result could be down to a number of reasons. Such as the conical flask not being rinsed properly, leaving a small amount of water in the bottom, diluting the solution further. There may also have been errors in the readings. Or simply missing the end point by not swirling enough or turning off the burette quick enough.Out of the 5 results collected 2 have been ignored, this leaves us with only 3 results to find an average with.Another factor to consider is percentage error.% Error = actual error/ size of measurement x 100The balance that was used has an error of + or 0.005g. 4 measurements were taken:12.57g% Error = 0.005/12.57100=0.04%15.24g% Error = 0.005/15.24100=0.03%12.59g% Error = 0.005/12.59100=0.04%2.65g% Error = 0.005/2.65100=0.19One drop from the burette has a volume of approx. 0.05cm3, this gives an error of + or 0.05. The average titre was 32.23cm3; therefore the following % error occurred:0.05/32.23100= 0.16%There may also be error when using the pipette, if used correctly the error is + or 0.06cm3 therefore:0.06/25100=0.24%The volumetric flask could also produce an error; if the bottom of the meniscus rests on the calibration line the error is 0.2cm3. So:0.2/250X100= 0.08%The largest % errors are produced when using the burette and pipette. Therefore more care is to be taken when taking readings from them.The total % error =0.78%. Therefore the results can be 0.78% larger or smaller than the results I collected: 0.78% of 32.23cm3= + or 0.25. Therefore the exact result is between 31.98and 32.48.The errors in procedure could arise in the following:* Solution in volumetric flask partially mixed.* Burette and pipette not rinsed properly* Conical flask not rinsed properly between titrations.* Acid not added drop by drop as the end point approached.* Swirling not a continuous action, allowing the end point to be missed.* Too much or too little indicator.The middle 3 results are the only results accurate enough to use as evidence. If I were to use these results as evidence I would only include the middle three results and then continue until I had 10 results within 0.1 of each other. The % error of the experiment was very small (0.78%) this means the three useable results appear to be reasonably accurate.There are many ways to improve the experiment:* More repetitions, the more repetitions you do the more accurate your end point should be and the average would be more accurate as you are taking into account more results.* Ensure the pipette, burette and volumetric flask readings are done at eye level on a horizontal surface. This makes the readings the readings more accurate.* Use a thinner burette so that changes in volume are even more noticeable and lowering % error.* Add the solution in drips rather than a steady stream. This would make the end point much more accurate.If the experiment is performed in pairs it would make the burette readings more accurate, as 1 person could swirl the solution and the other could handle the burette. This would allow the swirling to be constant as the burette handler could concentrate on finding the end point accurately.
Subscribe to:
Posts (Atom)