EBay's Overall Digital Marketing Efforts Case Study

EBay's Overall Digital Marketing Efforts - Case Study Example With up to 4.5 million likes on Facebook and over 170 thousand followers on Twitter, eBay is actively increasing its popularity all around the world. It has a modern website that is quite user friendly, it easy for one to find his or her way around the site be it to buy or sell a phone, a car or an accessory among others. Consequently, its default search engine gives results of all its networks; the item to be sold or bought, the price range and the even geographical location. Finally, eBay has a mobile application that allows e-mail and message notifications about specific services (O’Reilly, 1). The New York Times has featured news about eBay. Buying a few items on eBay guarantees one to be conversant with the mechanisms and operations of the site. More information and ideas were outsourced from other people who have used eBay before or are still using. Overall Marketing Strategy A marketing strategy refers to the process(s) or model(s) that a company employs to realize sust ainable competition and maximize their sales, by optimally using their resources. This would include all the short and long term ideologies in the marketing area, strategy formation, assessment and selection of a good plan, hence to help the organization reach its goal. Marketing, therefore, entails the efforts used to get word out about a product. O’Reilly (1) claims that, no matter how big the brand, the products they have a need to be showcased to the rest of the globe to at least get a hearing. These strategies include: spreading the news, using e-mail, allowing for customer feedback, using business cards, rewarding frequent customers and giving out freebies. These ideas enable one to make an overall marketing plan, but with a good website the number of these strategies can be doubled. Located all over Europe, eBay has got more than 90 million users worldwide. As a marketing plan, it launched daily email offers service, and is focusing to push fashion sales. With its slog an, ‘free shipping’, eBay has been able to significantly attract sellers and buyers from all over U.S. eBay. It redesigned its website into a superstore. Recently, Sainsbury’s digital marketer, Tanya Lawler joined eBay to be the vice president in order to boost sales says O’Reilly, (1). Target Audience eBay is one of the largest online marketplaces all around the world. It allows trade to occur on local, national and even international scale. This trade happens through auction listings, buy it now basis or through the eBay stores. It has acted as a neutral intermediary between buyers and sellers, hence referred to as a market maker. eBay oversees trade between a number of goods and services namely; motors (cars, motorcycles, bicycles etc.), fashion, Electronics, collectibles or art, sporting goods, toys and hobbies, jewelry, health and beauty, deals and gifts and finally, home, outdoors and decor (Ebay.com, 1). A number of eBay users find it safer than oth er online marketplace, it is, therefore, considered a reliable online source for buying and selling of goods and services. eBay offers free shipping within the U.S while rival online marketplaces do not offer such service. eBay differentiate itself by getting involved or acting as a mediator between the two parties (buyers and sellers), hence the idea of auctioning goods and services.  

Carl Linnaeus Essay Example for Free

Carl Linnaeus Essay Linnaeus Report Born in 1707 to a country parson in Rashult, southern Sweden, the young Linnaeus showed a keen interest in plants and flowers and by the age of eight, was given the nickname ‘the little botanist’. Linnaeus studied medicine, first at the University of Lund and then at the University of Uppsala. Medicine at this time was based on herbals so it meant he also studied plants. He shared his passion for plants with Olaf Celsius whom he met at Uppsala. Linnaeus is most widely known for creating systems for naming and classifying plants and animals. Realizing that new plants were being discovered faster than their relationships could be established, he first came up with a simple classification based upon the number of floral parts of each plant. This system remained popular into the nineteenth century. Gradually Linnaeus also developed a system of names in which each species of plant and animal had a genus (class or group) name followed by a specific name. For example,  Plantago virginica  and  Plantago lanceolata  were the names of two species of  plantain  (an herb). Botanists agreed in 1905 to accept his  Species plantarum  (1753) and zoologists (scientists who study animals) agreed to accept his  Systema naturae  (1758) as the official starting points for scientific names of plants and animals. He  was one of the most influential scientists of his time. His  theory of classication allowed for clear and easy descriptions of plants, animals and minerals. So straightforward was his new naming system, it is still used by scientists today.

Security in Healthcare: How Bring Your Own Device (BYOD) violates Healt

Bring Your Own Device policy (BYOD) in health care organizations is a growing trend that shows a considerably positive effect that few people could notice any violations that may accompany it. The policy allows staff in an organization to carry their personal electronic devices like mobile phones, computers, and laptops to facilitate their work by helping store and access certain information (Herzig 20). Health Insurance Portability and Accountability Act (HIPAA) was enacted in 1996. It entails security and privacy regulations constructed to ensure good security measures are applied to protect patient data in health facilities, especially where BYOD policy is active. The policies provided in HIPAA also ensure that only authorized people access information stored in the devices used by health providers (Powell 1-2). HIPAA security regulations offer standards for ensuring that patient data on electronic devices are safeguarded. HIPAA cover how we can use and disclose patient information while the HIPAA privacy policies explain how patient information should be accessed and disclosed. Schneider (55) reviews that violation of HIPAA security and privacy laws majorly entail the attainment, retrieving and using medical information by a person who is not subject to the health data or is not permitted to offer medical services. How BYOD can violate HIPAA security/privacy laws Lack of Confidentiality BYOD policy may not promote confidentiality and integrity, which is a major requirement in the HIPAA regulations (Health Information Privacy). Health providers should come up with strategies to follow up on and protect information they have concerning their client. 5111 Physical Security Policy ensures that the security of the devices used by ... ...Security in Healthcare: Building a Security Program. Chicago, IL: HIMSS, 2013. Print. HIPAA. Minneapolis, MN: Minnesota Institute of Legal Education, 2003. Print. Liu, Yu. PACS and Digital Medicine: Essential Principles and Modern Practice. Boca Raton, FL: CRC Press, 2011. 11. Print Powell, Suzanne. "HIPAA." Lippincott's Case Management 8.1 (2003): 1-2. Roberts, Albert. â€Å"Do BYOD Programs Encourage Bullying.† Edutopia. 24 May 2013. Web. 12 Nov. 2013. . Schneider, Mary Ellen. "HIPAA privacy enforcement. (Policy & Practice)." OB GYN News 2003: 55. Widmer, Lori. "HIPAA critical: since the passage of the Health Information Portability and Accountability Act of 1996, companies have been working toward compliance. Yet are risk managers ready? (Liability)."Risk & Insurance 1 Aug. 2003: 35.

A Wrinkle in Time Novel

Madeleine L’Engle’s novel A Wrinkle in Time is about a young girl named Meg Murry, who is far from perfect. While she does come from a close, loving family, Meg has low self-esteem and a stubborn personality. As she gets caught up in the battle to save the universe from evil, Meg uses both her strengths and her weaknesses to help her. The novel begins by introducing Meg as a girl who has very low self-esteem.L’Engle describes Beg making horrible faces at herself in the mirror, flashing a snarling smile of braces and messing up her mouse-brown hair. If Meg sighing loudly at her own reflection isn’t enough to convince the reader that Meg doesn’t like herself, the scene when she yells, â€Å"I hate being an oddball! † should prove the point. Though Meg doesn’t feel good about herself, she does care deeply about her family. She worries about her missing father and eventually goes to Camazotz to save him.While she’s tessering around the universe, Meg sees her mother crying back on Earth. Meg’s love for her mom is so strong that she reacts by getting angry, gaining more strength to use in the battle against evil. In the end, it is Meg’s love for her brother Charles Wallace that gives her the power to save him from IT. Throughout the novel, people tell Meg hat she’s too stubborn. She gets in trouble in math class because she refuses to show her work and do problems the teacher’s way.She’s even stubborn when she’s sent to the office, and Principal Jenkins tells her to â€Å"†¦be less antagonistic. † But it is this stubborn quality that keeps Meg going in the fight against the Man with Red Eyes. A less strong-willed person would have backed down from fear when faced with such an evil character. In conclusion, Meg is such an interesting character because she is not perfect. She is a stubborn girl with low self-esteem, but her love for her family helps her use her weaknesses for strength.

Steam Distillation

CONTENTS CONTENTS| PAGES| 1) Abstract| 2-3| 2) Introduction| 4-6| 3) Objectives, Materials and Apparatus, Chemicals| 7| 4) Method| 8| 5) Results| 9-11| 6) Discussion| 12| 7) Conclusion| 13-14| 8) References| 15| ABSTRACT This experiment is about steam distillation by using Dalton’s Law. The objectives of this experiment are to demonstrate a separation of a mixture by using steam distillation and next to prove that Dalton’ Law and ideal gas law are applicable in steam distillation. Dalton’s Law; While Ideal Gas Law; This experiment is conducted by placing 2mL of Turpentine and 15mL of water into the flask. 0mL graduated cylinder is used as the receiver. All the connections are make sure tighten. Next,two boiling chips are added to ensure smooth bubbling and prevent bumping of the liquid up into the distillation head. The heating mantle is adjusted to give vigorous boiling. The first 1. 5mL of distillate is discarded and the next 5mL is collected. The volumes of th e water and turpentine layers in this distillate are recorded. The recorded volume is then compared with the ideal steam distillation law using the tabulated vapour pressure and densities. The volume of water and turpentine recorded are:Turpentine=1. 7mL Water=3. 3mL turpentine -_-_-_-_-_-_-| -_-_–_-_-_-_Water-_-_-_-_-_-_–_-_-_-_-_-_–_-_-_-_-_-_–_-_-_-_-_-_-| In conclusion,it is proven that turpentine and water can be separated using the steam distillation. INTRODUCTION Dalton's Law of Partial Pressures states that for a mixture of gases in a container, the total pressure is equal to the sum of the pressures of each gas. Where P1 is the partial pressure of gas 1, P2 is the partial pressure of gas 2, and so on†¦ OR In the experiment of the steam distillation,we applied the Dalton’s Law of Partiaal Pressure combined with Ideal Gas Law.Steam distillation is a special type of distillation (a separation process) for temperature sensitive materials like natural aromatic compounds. Steam distillation is employed in the manufacture of essential oil, for instance, perfumes. In this method steam is passed through the plant material containing the desired oils. It is also employed in the synthetic procedures of complex organic compounds. Eucalyptus oil and orange oil are obtained by this method in industrial scale. Figure 1 : Laboratory set-up for steam distillationDistillation Temperature and Composition of Distillate As with ordinary distillations, the boiling point is the temperature at which the total vapor pressure equals the atmospheric pressure. If the vapor pressures of the two components are known at several temperatures, the distillation temperature is found readily by plotting the vapor pressure curves of the individual components and making a third curve showing the sum of the vapor pressures at the various temperature. The steam distillation temperatures will be the point where the sum equals the atmospheric pressure.K nowing the distillation temperature of the mixture and the vapor pressures of the pure components at that temperature, one can calculate the composition of the distillate by means of Dalton’s law of partial pressures. According to Dalton’s law, the total pressure(P) in any mixture of gases is equal to sum of the partial pressures of the individual gaseous components (? A , ? B, etc). The proportion by volume of the two components in the distilling vapor will consequently be equal to the ratio of the partial pressures at that temperature; the molar proportion of the two components (?A and ? B) in steam distillation will be given by the relationship ? A/? B = ? A/ ? B, where ? A + ? B equals the atmospheric pressure. The weight proportion of the components is obtained by introducing the molecular weight (MA and MB) Weight of A / weight of B = (? A x MA) / (? B x MB) Example . Consider a specific case, such as the steam distillation of bromobenzene and water. Since the su m of the individual vapor pressures (see Figure below) attains 760 mm at 95. 2? , the mixture will distill at this temperature. At 95. 2? the vapor pressures are bromobenzene, 120mm and water, 640mm. ccording to Dalton’s law, the vapor at 95. 2? will be composed of molecules of bromobenzene and of water in the proportion 120:640. the proportion by weight of the components can be obtained by introducing their molecular weights. Weight of bromobenze / weight of water = (120 x 157)/(640 x 18) = 1. 63/1. 00 Bromobenzene= {1. 63/(1. 00 + 1. 63)} x 100% = 62% Water = {1. 00/(1. 00 + 1. 63)} x 100% = 38% The weight composition of the distillate will therefore be 62% bromobenzene and 38% water. OBJECTIVE To demonstrate a separation of a mixture by using steam distillation MATERIALS/APPARATUS/EQUIPMENT 00 ml round-bottomed flask, 50 ml Erlenmeyer flask, stoppers, naphthalene, salicylic acid. METHOD Steam Distillation of Turpentine 1. The apparatus for steam distillation are arranged a s shown in Figure 1. 50 ml of distilling flask and 10 ml graduated cylinder is used as the receiver. 2. In the flask, 5 ml, (4. 3g) of turpentine ( bp 156-165 at 760 mm) and 15 ml, of water is placed. 3. Two boiling chips are added and the heating mantle is adjusted to give vigorous boiling. It is essential for the success of this experiment that the mixture boiled rapidly with good mixing of the two phases.Because the point of this experiment is to measure an equilibrium composition and the initial distillate may not have time to equilibrate, the first 1. 5 ml of distillate is discarded and the next 5 ml is collected. 4. The volumes of the water and the turpentine layers at this distillate are recorded. 5. The ratio of the volumes actually found is compared with the ratio calculated from the ideal steam distillation law using the tabulated vapor pressure and densities. 6. The distillation temperature observed is compared with the calculated value. RESULTS turpentine -_-_-_-_-_-_-| _-_–_-_-_-_Water-_-_-_-_-_-_–_-_-_-_-_-_–_-_-_-_-_-_–_-_-_-_-_-_-| Turpentine = 5. 0mL Water = 15. 0mL Weight composition: Water = 15. 0 x 100 20. 0 = 75 % Turpentine = 5. 0 x 100 20. 0 = 25 % The weight composition that will be distillate will be 75 % water and 25 % turpentine. After the mixture have been distilled, here is the result: Total volume of distillate = 5. 0mL Turpentine = 1. 7mL Water = 3. 3mL Weight composition: Water = 3. 3 x 100 5. 0 = 66 % Turpentine = 1. 7 x 100 5. 0 = 34 % Ratio of turpentine to water : Turpentine : Water 0. 34 : 0. 66Weight of turpentine/ Weight of water = [0. 34 x [12(10)+1(16)]] / [0. 66 x [1(2)+1(16)]] = (0. 34 x 136) / (0. 66 x 18) = 46. 24 / 11. 88 = 3. 8923 Turpentine = [ 46. 24 / (46. 24+11. 88) ] x 100% = 79. 5595 % Water = [ 11. 88/ (46. 24+11. 88) ] x 100% = 20. 4405 % Temperature, T/C| Volume of distillate, V/mL| 94| 1st 1. 5mL| 94| 1| 94| 2| 94| 3| 94| 4| 94| 5| DISCUSSION 1. What properties must a substanc e have for a steam distillation to be practical? For steam distillation of a substance to be carried out, the substance must be heat sensitive. It must possess a lower boiling point than water.This method is also advisable for highly volatile liquids because highly volatile liquids denatures at high temperatures. 2. What are the advantages and the disadvantages of steam distillation as a method of purification? Among the advantages of steam distillation is organic compounds which is steam distilled will evaporate at lower temperatures, most probably below their temperature of denaturation. Besides that, heat sensitive aromatic compounds which cannot be distilled by direct heating can be processed. On the other hand, the disadvantages of this method are this method is not exactly suitable for all types of aromatic oils.Only certain types of aromatic oils are suitable to be processed using this method. Furthermore the heat is difficult to control causing the rate of distillation to be variable. -Our group apparatus got some problems. The turpentine that has been distillated accumulated at the joint of the apparatus. This is because the apparatus less slope, leads the turpentine to accumulate, resulting long time to collect the distillated turpentine. CONCLUSION Steam distillation is a special type of distillation (a separation process) for temperature sensitive materials like natural aromatic compounds.Many organic compounds tend to decompose at high sustained temperatures. Separation by normal distillation would then not be an option, so water or steam is introduced into the distillation apparatus. By adding water or steam, the boiling points of the compounds are depressed, allowing them to evaporate at lower temperatures, preferably below the temperatures at which the deterioration of the material becomes appreciable. Therefore, as the conclusion, it is proven that turpentine and water can be separated by using steam distillation.It is also known that water ha s a higher density than turpentine. Next, Dalton's law (also called Dalton's law of partial pressures) states that the total pressure exerted by a gaseous mixture is equal to the sum of the partial pressures of each individual component in a gas mixture. This empirical law was observed by John Dalton in 1801 and is related to the ideal gas laws. On the other hand, the ideal gas law is stated as the equation of state of a hypothetical ideal gas. It is a good approximation to the behavior of many gases under many conditions, although it has several limitationsTherefore, as both of these laws are involved, we can conclude that both Dalton’s Law and Ideal Gas Law are applicable in steam distillation. Based on the result of the experiment, water contains 80% and turpentine contain 20% portion. Some errors might have occurred during the experiment that caused the results to be differed from the theory. During the experiment, the apparatus must handle carefully because it is easily broken. To increase the accuracy of the result, thermometer is used in the flask so we can read the temperature in the flask.We must use stopper to close the flask because it can avoid the water vapour escape to the environment REFERENCES John R. Dean, Alan M. Jones, David Holmes, Rob Reed, Jonathan Weyers and Allan Jones (2002). Practical Skills in Chemistry. Edinburgh Gate, Harlow, Great Britain: Prentice-Hall Carl W. Garland, Joseph W. Nibler, David P. Shoemaker, (2003). Experiments In Physical Chemistry. 7th Edition. New York, N. Y. : McGraw-Hill Umland and Bellama (1999). General Chemistry. 3rd ed. Pacific Grove, CA: Brooks/Cole Publishing Company APPENDICES Steam Distillation Experiment 2: Isolation of Eugenol from Cloves Background; Readings on Vapor pressure, Raoult’s Law from TRO: A mixture of the essential oils, eugenol and acetyleugenol, will be steam distilled from cloves. These compounds are isolated from aqueous distillate by extraction into dichloromethane. The dichloromethane solution is shaken with aqueous sodium hydroxide, which will react with eugenol, to yield the sodium salt of eugenol in the basic aqueous layer, and acetyleugenol in the organic layer. The basic aqueous layer can be acidified to re-extract eugenol from it.And the organic layer can be dried and concentrated to yield acetyleugenol The principle of steam distillation is based on the fact that two immiscible liquids will boil at a lower temperature than the boiling points of either pure component, because the total vapor pressure of the heterogeneous mixture is simply the sum of the vapor pressures of the individual components (i. e. PT = PoA + PoB, where Po is the vapor pressure of the pure liquids). This leads to a higher vapor pressure for the mixture than would be predicted for a solution using Raoult’s Law(applies for iscible mixtures) (that is PT = Po(A)n(A) + Po(B)n(B), where n is the mole fraction of the component in the mixture). The higher total vapor pressure leads to a lower boiling point for the mixture than for either single component. The boiling point of eugenol, an oil found in cloves, is 248  °C, but it can be isolated at a lower temperature by performing a co-distillation with water. Steam distillation allows separating substances at lower temperatures which is useful since many organic compounds tend to decompose at high temperatures which regular distillation would require.For steam distillation to be successful, the material to be isolated must be insoluble in water. Usually   these compounds have a low vapour pressure. After mixing them with water, however, the mixture will distil when the sum of the two vapour pre ssures reaches atmospheric pressure. It follows, then, that this must happen below the boiling point of water. Note that by steam distillation, as long as water is present, the high-boiling component vaporizes at a temperature well below its normal boiling point without using a vacuum.Since eugenol is not soluble in water, the concentration of the eugenol in the vapor over the boiling eugenol– water suspension does not depend on concentration of the eugenol. The relative amounts of eugenol and water in the vapor simply depend on the vapor pressures of the pure materials. The vapor pressure of water at 100  °C is 760 torr, and the vapor pressure of eugenol at 100  °C is approximately 4 torr; (Note, the suspension boils when it’s vapor pressure is equal to the external pressure.Since both the eugenol and the water are contributing to the vapor pressure of the suspension, the suspension will boil before either pure substance would normally boil. ) Since the distillate will contain both water and eugenol, the eugenol must be extracted from the water using an organic solvent. Once the eugenol is extracted into an organic solvent,the organic layer is separated from the aqueous layer and dried. The eugenol is finally isolated by evaporation of the organic solvent. When   the sum of the separate vapor pressures equals the total pressure, he mixture boils and P =P(A) + P(B) Where PA is vapor pressure of pure water A PB is vapor pressure of pure B 1 Then the vapor composition is Y (A)= PA/P Y(B) =PB/P Dalton’s Law: PAV1 = nART1 and PBV2 = nBRT2 V1 = V2 and T1 = T2 n = moles, The ratio moles of B distilled to moles of A distilled is OH OCH3 OAc OCH3 Eugenol AcetyleugenolObjectives: To extract Eugenol and Acetyleugeonol from cloves To separate the mixture of eugenol and acetyleugenol using their acid- ­? base properties. To characterize eugenol and acetyleugenol using TLC(Rf values) andRefractive index. Glassware: Beaker to mass the cloves, Er lenmeyer flasks(2, 50- ­? ml), storage container+ distillation glassware(there should be an assembly in the fume hood) Procedure: Week 1: Steam Distillation Place 10 g of whole cloves (ground using a mortar and pestle by the teacher) in a 100-mL round-bottom flask, add 50 mL of water, and set up an apparatus for simple distillation- steam (will be set up in the fumehood and you can draw the set up while in the lab) will be generated in situ(50 ml of water added to the flask will generate the steam).Heat the flask until boiling begins, then reduce the heat just enough to prevent foam from being carried over into the receiver. Use a 50-mL Erlenmeyer flask as a receiver(the distillate will collect in the flask thro a funnel) and transfer periodically your distillate to a 50-mL graduated cylinder. While you have removed one receiver, do not forget to replace the Erlenmeyer flask with a second one(that is clean and dry). 2 Caution: It is important that the cloves remain covered with wa ter at all times. Or else, the cloves will burn and smoke!Also, the distillation has to be steady. If not the mixture will foam and the foam will drop down the condenser into the receiving flask. And this would contaminate the distillate. Save the distillate in a tightly capped bottle for the following week. Week 2: Separation of Eugenol and Acetyleugenol via acid/base extraction Place the 50 mL of distillate in a 125-mL separatory funnel and extract with three 10-mL portions of dichloromethane. Combine the dichloromethane extracts and reserve 1 mL for thin layer chromatography. teacher will explain this step) To separate eugenol from acetyleugenol: pour back the dichloromethane extracts into the separatory funnel, extract the dichloromethane solution with 5% aqueous sodium hydroxide solution. Carry out this extraction three times, using 5-mL portions of sodium hydroxide each time. KEEP the aqueous extracts (it contains eugenol) and dry the organic layer over sodium sulfate (add eno ugh so the drying agent no longer clumps together but appears to be a dry powder as it settles in the solution).Swirl the flask to complete the drying process and let the drying agent settle for 1 minute before decanting into a DRY and TARED Erlenmeyer flask, rinse the drying agent with two 2-mL portions of dichloromethane. Evaporate the solution on a steam bath, the residue should be aetyleugenol. Acidify the combined aqueous extracts to pH 1 with concentrated hydrochloric acid (use Litmus paper to monitor the pH), and then extract the eugenol with three 5-mL portions of dichloromethane.Dry the combined extracts over sodium sulfate, as done before, decant into a DRY and TARED Erlenmeyer flask, and evaporate the solution on a steam bath, the residue should be eugenol. Cleaning Up: Combine all aqueous layers, neutralize with sodium carbonate, dilute with water, and flush down the drain. Any solutions containing dichloromethane should be placed in the halogenated organic waste contain er. Wash up all glassware with soap and water. Analysis: Calculate the weight percent yields of eugenol and acetyleugenol oils based on the weight of cloves used. Analyze your products sing refraction index. Analyze your products using thin layer chromatography (TLC). Eluent: dicloromethane-hexane (1:2 or 2:1)Vizualization: under UV light and iodine chamber AS Co AE AS – Acetyleugenol Standard Co – Co-spot AE – Acetyleugenol Extract ES Co EE ES – Eugenol Standard Co – Co-spot EE – Eugenol Extract ES Co CM ES – Eugenol Standard Co – Co-spot CM – Crude Mixture First a TLC plate is prepared by spotting the purified unknown and an authentic sample of each possible compound. Then the TLC plate is developed. For the next step (co-spotting), an authentic sample of the 3 ompound closest in Rf value to the unknown is chosen. TLC co-spotting of a second plate allows for preliminary identification of your compound. Three spots are applied to the adsorbent on the baseline of the TLC plate: the purified unknown, an authentic sample, and a co-spot of unknown and authentic sample. If the developed TLC plate shows only one row of spots, it can be concluded that the unknown has been purifed, and that the unknown is possibly the same compound as the authentic sample.However, because Rf values are relative, not absolute, some compounds may have very similar Rf values Pre- ­? ab: FOR WEEK 1 only: All the required formulae for the caculations have been presented here. Hence googling is not required. MSDS is required for the following chemicals: Eugenol and acetyl eugenol. Pre- ­? lab should be complete to the best of your ability before the lab. Answers will be discussed during the lab. For the procedure : You will draw the glassware set up when you come to the lab; Just come prepared with titles, objectives, MSDS. Questions from pre-lab should ensure that you have understood the theory behind WEEK 1 ; Distillation . 1a. What is the vapour pressure of benzene at 80 egrees celcius. Explain the term vapour pressure. 1b. What is an azeotrope? How would the term azeotrope apply in this experiment? 2a. The vapor pressure of water at 99oC is 733 torr. What is the vapor pressure of eugenol that codistills at this temperature? The amount of the substance X that co- ­? distills together with the water is given by Pwater/px = nwater/nx n(water) = moles of water n(X)= moles of Eugenol 2b. Calculate the mass of eugenol that co-distills with each gram of water at 99oC. How many grams of water must be distilled to steam distill 2 grams of eugenol from an aqueous solution?Calculate mass% for both eugenol and water. 3. What is the difference between essential oil and fatty oil? What would be suitable IUPAC name for eugenol and acetyl eugenol? 4. Based on the formulae presented so far, cite one disadvantage of steam distillation of organic compounds. 5. Steam distillation may be used to separate a mixture of 4- ­? nitrophenol and 2- ­? nitrophenol. The 2- ­? nitrophenol distills at 93 degrees but the 4- ­? nitrophenol does not. Explain. 6. List your observations during the lab: Record the temperatures at various times, nature of the distillate, odour†¦.. 4

The Failure of the League of Nations essays

The Failure of the League of Nations essays In the beginning of the 1930's, there was a world-wide economic depression. This lead to the creation of expansive policies of strong countries, such as Japan and Italy, in order to overcome the depression by building strong empires. The League of Nations dependent on the obedience of the Covenant by its members in order to succeed. However, in 1930's the League failed in stopping dictators deliberately breaking the Covenant. Already in 1931, Japan controlled most of the economy in Manchuria, part of China. It owned the most important assets in Manchuria, such as the Manchurian Railway. As the world-wide depression hit Japan hardly, the Japanese saw the invasion as the only way how to get out of depression. During the night of 28th September, an explosion of the Manchurian Railway, gave the Japanese an excuse to occupy the city of Shenyang. Instantly, China asked for the help of the League of Nations. After having a close look at the case, the League ordered the Japanese troops to leave Manchuria. The Japanese government agreed with the League's decision. However, the Japanese troops were already settled in Manchuria and refused to withdraw. The government no longer had control over its army and the army continued to advance in Manchuria. This event was a major blow to the League. The League was meant to keep peace by collective security, however, the Japanese refused to accept the terms of the League. Thus, this meant that if persuasion did not work then the League had to use economical sanctions. However, personal interest played a major role in the failure of applying economical sanctions on Japan. Both Britain and France, the main leaders of the League, were also recovering from the Great Depression and they did not want to risk losing trade with Japan, as it was vital for their economy. It soon became clear that economical sanctions could not work. Therefore, the League was left with their last resource&qu...

Business Ethics

Business Ethics Essay Ethics in Business From a business perspective, working under government contracts can be a very lucrative proposition. In general, a stream of orders keep coming in, revenue increases and the company grows in the aggregate. The obvious downfalls to working in this manner is both higher quality expected as well as the extensive research and documentation required for government contracts. If a part fails to perform correctly it can cause minor glitches as well as problems that can carry serious repercussions, such as in the National Semiconductor case. When both the culpable component and company are found, the question arises of how extensive these repercussions should be. Is the company as an entity liable or do you look into individual employees within that company? From an ethical perspective one would have to look at the mitigating factors of both the employees and their superiors along with the role of others in the failure of these components. Next you would have to analyze the final ruling from a corporate perspective and then we must examine the macro issue of corporate responsibility in order to attempt to find a resolution for cases like these. The first mitigating factor involved in the National Semiconductor case is the uncertainty, on the part of the employees, on the duties that they were assigned. It is plausible that during the testing procedure, an employee couldnt distinguish which parts they were to test under government standards and commercial standards. In some cases they might have even been misinformed on the final consumers of the products that they tested. In fact, ignorance on the part of the employees would fully excuse them from any moral responsibility for any damage that may result from their work. Whether it is decided that an employees is fully excused, or is given some moral responsibility, would have to be looked at on an individual basis. The second mitigating factor is the duress or threats that an employee might suffer if they do not follow through with their assignment. After the bogus testing was completed in the National Semiconductor labs, the documentation department also had to falsify documents stating that the parts had surpassed the governmental testing standards. From a legal and ethical standpoint, both the testers and the writers of the reports were merely acting as agents on direct orders from a superior. This was also the case when the plant in Singapore refused to falsify the documents and were later falsified by the employees at the have California plant before being submitted to the approval committees (Velazquez, 53). The writers of the reports were well aware of the situation yet they acted in this manner on the instruction of a supervisor. Acting in an ethical manner becomes a secondary priority in this type of environment. As stated by Alan Reder, . . . if they the employees feel they will suffer retribution, if they report a problem, they arent too likely to open their mouths. (113). The workers knew that if the reports were not falsified they would come under questioning and perhaps their employment would go into jeopardy. Although working under these conditions does not fully excuse an employees from moral fault, it does start the divulging process for determining the order of the chain of command of superiors and it helps to narrow down the person or department that issued the original request for the unethical acts. The third mitigating factor is one that perhaps encompasses the majority of the employees in the National Semiconductor case. We have to balance the direct involvement that each employee had with the defective parts. Thus, it has to be made clear that many of the employees did not have a direct duty with the testing departments or with the parts that eventually failed. Even employees, or sub-contractors, that were directly involved with the production were not aware of the incompetence on the part of the testing department. READ: Comparison Of The Piano Lesson And Sonnys Blues Essay For example, the electrical engineer that designed the defective computer chip could act in good faith that it would be tested to ensure that it did indeed meet the required government endurance tests. Also, for the employees that handled the part after the testing process, .