Synthesis of 3-Nitrobenzaldehyde Essay - 1476 Words

Abstract This experiment is about the synthesis of 3-nitrobenzaldehyde through nitration. The nitration of benzaldehyde is an example of an electrophilic aromatic substitution reaction, in which a proton of an aromatic ring is replaced by a nitro group. Many aromatic substitution reactions are known to occur when an aromatic substrate is allowed to react with a suitable electrophilic reagent, and many other groups besides nitro may be introduced into the ring. Although the reaction produced a low yield at the end, the yield is calculated from the reaction and limiting reagent. Keywords: electrophilic aromatic substitution, nitration, aldehyde, nitrating group Introduction Electrophilic substitution happens in many of the†¦show more content†¦Stage 1 of the mechanism of nitration As the NO2+ ion approached the delocalised electrons in the benzene, those electrons were strongly attracted toward the positive charge. Two electrons from the delocalised system were used to form a new bond with the NO2+ ion. Because those two electrons arent a part of the delocalised system any longer, the delocalisation was partly broken, and in the process the ring gained a positive charge. Stage two Figure 2. Stage 2 of the nitration mechanism The second stage involved a hydrogensulphate ion, HSO4-, which was produced at the same time as the NO2+ ion. This removed a hydrogen from the ring to form sulphuric acid - the catalyst had therefore been regenerated. The electrons which originally joined the hydrogen to the ring were now used to re-establish the delocalised system. Table 1. Observations from the experiment proper Observations: 89 mL conc. H2SO4 Clear solution + 45 mL fuming HNO3 Clear solution + 10.2 mL benzaldehyde Solution turns yellow if stirred continuously while adding benzaldehyde. But solution will produce red orange fumes and increase heat. + ice White fluffy precipitate After vacuum filtration White gum-like precipitate + 125 mL diethyl ether Precipitate dissolves and solution turns into pale yellow color + 125 mL 5% NaHCO3 Immiscible with solution. Golden yellow in color. While the experiment was being executed,Show MoreRelatedPreparation Of The ( 2 Nitrophenyl ) Acrylate Using The Wittig Reaction1287 Words   |  6 PagesPreparation of 3-(2-Nitrophenyl)acrylate Utilizing the Wittig Reaction Introduction: The Wittig reaction, named after Georg Wittig, produces an alkene from an aldehyde or ketone reacting with a phosphonium ylide (a Wittig reagent). The Wittig reaction is typically stereoselective, which makes the Wittig reagents more difficult to work with but use of the Wittig with different allyl substituents prove to make the Wittig more versatile which can lead to the synthesis of a wide range of alkenes, styrenes

Law for Donoghue v Stevenson 1932 AC 562- MyAssignmenthelp.com

Question: Discuss about the Law for Donoghue v Stevenson 1932 AC 562. Answer: Tort is considered as civil wrong under which innocent party has right to claim damages. Tort is derived from an old French word which literally meaning as wrong. In Australia, law is derived from English common law and tort is also deriving from the history of English common law. Tort is defined as situation when any person caused any harm to another person, and injured party sues the person for damages (ALRC, 2017). Tort of negligence- generally, tort of negligence is defined as legal action which can be taken by one person against another person who owned duty of care to precedent person. Liabilities of person under tort of negligence arise when person owns duty of care towards another person and breach of such duty cause damage to another person. Tort of negligence included three important factors and it is necessary for plaintiff to satisfy all these factors for being successful under claim: Duty of care owned by defendant towards plaintiff at the time of the act of negligence. Defendant must breach such duty of care by not meeting the expected standard of care. Damage caused to plaintiff from such breach. In general way negligence is recognized as act of carelessness but it must be noted that not every careless act result in liability. Only those act result in liability which satisfy all three elements (Law Vision, 2017). During the period of 18tth and 19th century, duty of care is recognized by common law in number of relationships which are limited in nature. Some example of limited relationships is innkeeper and guest, doctor and patient, and driver and road user. It is necessary for existence of duty of care that some form of relationship exists between the plaintiff and defendant. For the purpose of making successful claim it is necessary that any one of these categories must be established. These categories are extended as per the development of society, especially after the industrial revolution in 1800s. It must be noted that if plaintiff fails to establish any category then there is no remedy in law for him. After the period of 1932, law of tort expands through the case law Donoghue v Stevenson 1932 AC 562. In this case Mrs. Donoghue went to Wellmeadow Caf in Paisley, Scotland with her friend and purchased bottle of ginger beer from the caf. She was not able to check the contents of the bottle because she purchased sealed and opaque bottle. After consuming one glass of ginger-beer she found decomposed snail in the bottle when she poured another glass of beer. Because of the snail in ginger bottle Mrs. Donoghue claimed that she suffered from gastroenteritis and nervous shock. She file claim against the manufacturer of the ginger-beer Mr. Stevenson for negligence. In this case relationship exists between the parties to the case that is manufacturer of the ginger beer sold beer to the shopkeeper of the Wellmeadow Caf. This is considered as contract and remedies are available for any breach related to the terms of the contract. Shopkeeper of caf sold that bottle of ginger beer to Mrs. Donoghue, and in this no contract is exists, so there are no remedies available under the law of contract. This case was entertained by House of Lords in London. Main issue in this case is whether Mrs. Donoghue has power to bring an action for negligence against the manufacturer. House of Lords stated in this case that manufacturer of the product while preparing the product owns duty of care towards the ultimate consumer. Lord Atkin in this case stated the general principle related to the liability of tort of negligence. He stated in this case that persons who are so closely and directly affected by my act that I ought reasonably to have them in contemplation as being so affected when I am directing my mind to the acts or omissions which are called into question. This statement made by Lord Atkins includes two tests that is foreseeability test and the proximity test. As per these tests foreseeability test means any act or omission which are reasonable foresee that they causes injury or damage and proximity test state that it is necessary that there must be some level of closeness arises from the relationship of defendant and plaintiff, either physical relationship or some other relationship. After concluding this case, Court clearly established the concept of tort of negligence. It must be noted that this concept is not only applicable on some fixed rules but it is applicable on all sort of circumstances conditions and problems. Law of negligence must fit in the facts of the case which are coming before the Court for decision. In case law Donoghue v Stevenson, manufacturer manufactured the drink with the intention to reach that drink to consumer unopened and being without inspected, it is necessary that he must foresee the injury in case he fails to ensure that harmful objects must not find their way in bottles. Therefore, Court stated that manufacturer owned duty of care towards the plaintiff. Parliament of Australia made some changes in law of negligence through Civil Liability Acts such as in case of personal injury act replaced the reasonable person test with a three step test, but this Act still use the word reasonable and foreseeability which are developed by lord Atkin (Legal service commission, 2017; Uni study guides, 2017). Now, Court considers following points to determine whether negligence occurred or not: Whether defendant owned the duty of care towards the plaintiff or not? Whether such duty of care is breached by defendant towards the plaintiff? Whether plaintiff suffers injury or damage or not? Whether plaintiff suffers injury or damage from such breach of duty? It must be noted that for successful claim plaintiff must satisfy all these points and even if one point is not satisfied then plaintiff cannot establish the liability of defendant (Blay, n.d.) Duty of care- duty of care is considered as legal obligation for the purpose of avoiding causing harm in case risk was foreseeable if care was not taken by person. Sometime proximity test is applied for establishing the duty of care, in other words relationship of closeness must exist between the parties of care for establishing duty of care. This can be understood through example such as relationship exists between doctor and patient and relationship exists between driver and road user. Breach of duty of care- For the purpose of establishing breach of duty of care, Court will consider the standard of care expected in such circumstances. Standard of care is determined by Court by considering the actions of reasonable person in similar circumstances. In case defendant does not acted as per those standards or fails to match the standard of care then it will be considered as breach of duty. There are some common examples of breach of duty which can be seen in everyday activities such as driving. It is expected from al road users that they must conduct their actions as per the actions of reasonable person. Some examples of failure to meet the standard of care are stated below (The law handbook, 2017): In case driver fails to look at front and as a result runs into the car in front of them. In case driver fails to obey the traffic lights and hit the pedestrian in front of the car. Determining the cause of injury from breach of duty- there are some cases in which it is easy to determine cause of injury because in these cases cause of injury is only one, but there are few cases in which it is difficult to determine the cause of injury because in these cases there is more than one cause of action. For example- in case person fell from terrace and breaks his arm, then there is clear connection between the fall and injury suffered by person. In case person fall from bicycle and breaks his arm, and on same day morning he slips on wet floor and injured the same arm then there is issue between the determination of cause of action. Contributory Negligence- in case injured person themselves contributed in the cause of injury or damage then it is considered the case of contributory negligence. Contributory negligence occurred when plaintiff fails to take reasonable care for ensuring his own safety or loss which must be foreseeable. In this case, amount awarded as damages will be reduced up to the extent which person contributed in the loss or damage. Some examples of contributory negligence are stated below: Slip or fall occurred because injured person fails to take reasonable care for ensuring his own safety or loss which must be foreseeable. Person engages in activity which involves high level of risk such as person driving into water from pier. Passenger fails to wear the seat belt (Basten, n.d.; Marks, n.d.). In the present case, Keith is working as home handyman, and he advertises in the local Buderim Bugle that he is a qualified carpenter, but in actual he does not have any trade qualifications. Ruth worked as a teacher at local school, and owns a home. Ruth contacted to Keith for the purpose of replacing the rotting timber tread on her back stairs. He replaces the tread but for replace he uses a piece of left over untreated chipboard instead of hardwood. After some weeks and after some heavy rainfall at nights the replaced tread swells and collapses overnight. Each morning Ruth walks down the backstairs for the purpose of feeding her caged birds. After the following morning of that collapse tread Ruth walks down from backstairs with large number of feeding dishes and cleaning equipments. Things carry by Ruth obstructs her vision and she is not able to see the missing tread, as result she fell down from missing tread and dislocating her knee. On next morning in hospital, Ruth called the Keith, and Keith apologized from Ruth for injury caused to Keith. Ruth recovered after the period of two months and not able to return to her paid employment. Because of all these she resigned from her employment and decided to stay at home. In this case there is close relationship between the Keith and Ruth as the relationship of buyer and seller, and because of this Keith owns duty of care towards the Ruth. Keith breaches this duty because she use piece of clipboard instead of hardwood for the purpose of replacing the tread. In this case collapse of tread from burden is risk which is foreseeable in nature. Therefore, Keith breaches his duty towards the Ruth. From such breach Ruth suffers injury. In this case all four questions for determining the tort of negligence are satisfied such as: Keith owns duty of care towards the plaintiff. Keith breaches such duty of care he owns towards the Ruth. Ruth suffers injury by dislocating her knee. Such injury was caused from fell down from missing tread. In this case, defense of contributory negligence cannot be used by Keith because it is the daily routine of Ruth to walk down from such stairs and she is in believe that Keith uses hardwood to replace the tread. In the present case, all three elements of tort of negligence are satisfied that is Keith owns duty of care towards Ruth, Keith breach such duty, and breach of duty cause injury to Ruth. Therefore, Ruth can take legal action against Keith under tort of negligence and seek damages from Keith for injury caused to Ruth. References: Law Visison. (2017). The Law of Torts. Available at: https://www.lawvision.com.au/uploads/PDFs/Tort%20Law%20.pdf. Accessed on 29th May 2017. Legal Service commission. (2017). Negligence. Available at: https://www.lawhandbook.sa.gov.au/ch01s05.php. Accessed on 29th May 2017. ALRC. (2017). Authorising what would otherwise be a Tort. Available at: https://www.alrc.gov.au/publications/right-sue-tort. Accessed on 29th May 2017. Uni study guides. (2017) The rise of the tort of negligence. Available at: https://www.unistudyguides.com/wiki/The_rise_of_the_tort_of_negligence. Accessed on 29th May 2017. Blay, S. The nature of tort liability. Available at: https://www.findlaw.com.au/articles/149/the-nature-of-tort-liability.aspx. Accessed on 29th May 2017. The Law handbook 2017. Duty of care. Available at: https://www.lawhandbook.org.au/04_08_02_duty_of_care/. Accessed on 29th May 2017. Basten, J. Personal Injury Contributory Negligence. Available at: https://www.supremecourt.justice.nsw.gov.au/Documents/Publications/Speeches/2017%20Speeches/Basten_20170311.pdf. Accessed on 29th May 2017. Marks, W. d. Professional Negligence: Contribution and Contributory Negligence. The University of Queensland Law Journal, Vol. 15(2), Pp- 209-227. Donoghue v Stevenson 1932 AC 562.

What Challenging Essay Topics Is - and What it Is Not

What Challenging Essay Topics Is - and What it Is Not Such essays shall have a good deal of quotations, based just on facts and laws, and show no more than the true picture of the instance. Finding out how to compose an essay is something which will help students not just in their school and college career, but throughout their life also. It's important to understand that essay topics are just basic ideas that leave you pondering a notion that might be a huge deal to somebody else. Deciding on a persuasive essay topic may take a great deal of time without ending up with the terrific solution. A persuasive speech resembles a difficult challenge for many students. One other important issue when picking a persuasive speech topic is to select a topic that may provoke your audience a little. The simplest way to select a persuasive essay topic is to explore a present issue. Picking the most suitable topic for a persuasive speech can be not such an easy matter to do as it might appear. To defend your subject, you can recall the effect of overloaded schedule on college grades. In such a circumstance, a student is needed to pick a suitable topic to write about. Often college students get into plenty of stress to get the correct topic for the essay. There are just a few things that define whether an essay you're working on is going to be a good one. Although having the ability to write persuasively can look like a tough thing for children to learn, remind them that everyone has valid opinions. When you settle on the subject and pick the position on which you will base your essay, the remainder of the job can then begin. You may trust us to supply expert assistance for many of your academic writing needs. On the opposing side, acquiring a list of good persuasive essay topics is inadequate. It will be simpler that you compose a decent persuasive essay if it's a subject in which you have knowledge. You may continue to keep your argumentative essays for your upcoming job portfolio in case they're highly graded. Just comply with the guidelines stated above, and you're going to be well on your way to writing a fantastic persuasive essay. Good persuasive essay topics must be persuasive. Remember, they don't have to be politically correct all the time, they can be controversial. If you're thinking about how to compose a persuasive essay, you have to know that writing an essay is a complicated process. In general, you can observe that writing a persuasive essay isn't a brain surgery. Persuasive essays are a really good approach to encourage the reader to check at a particular topic in a different light. Possessing no thought of the persuasive essay topics, you just do not understand what to write about. Argumentative essay topics are so important since they are debatableand it's essential to at all times be critically contemplating the world around us. Selecting a great topic for your essay is among the most significant and frequently tricky parts for many students. Our seasoned persuasive paper writers will supply you with effective solutions to ordinary problems, even supposing it is an argumentative essay. You still must make an outstanding bit of writing. Before you commence working on the paper, you must go through several topics to compose a persuasive essay on. An argumentative paper is part of the persuasion. The Fundamentals of Challenging Essay Topics You Will be Able to Benefit From Beginning Immediately Thus, a speech should be organized. Then you're interested in figuring out how to compose persuasive paper.

Research Paper on Sports Law Topics

Research Paper on Sports Law TopicsIf you're serious about becoming a sports lawyer, then it's important that you spend some time researching the various sports law topics that can be of interest to you. The world of sports law encompasses a vast array of laws relating to contracts, personal injury, and various other topics.With so many different sports, it makes sense that there are law firms specializing in different sports. These firms can provide legal advice on a wide variety of sports law topics. A sports law firm is essentially a partnership between a law firm and a team of sports consultants. A typical sports law firm will have one or more sports consultants, and each member of the sports law firm will advise clients on a particular aspect of sports law.A law firm may specialize in a single area, like sports law, but they may also have several areas of focus. Some sports law firms, like the Dallas Sports Law Firm, specialize in one aspect of sports law, such as personal injur y. Other sports law firms, like the Indiana Sports Law Firm, focus on a range of different sports topics.If you decide to join a law firm that specializes in one area of sports law, then you'll be working with a sports lawyer, which is the best option if you're interested in becoming a sports lawyer. As a law firm becomes more experienced, it's possible for the firm to expand its sports law focus, and in some cases, specialize in a particular area of sports law.The best way to become a sports lawyer is to join a sports law firm that specializes in a single aspect of sports law. You'll need to discuss your interests with the law firm's sports consultants, and if they're also interested in helping you with your interests, you can start working together on a project.It's also a good idea to find out as much as you can about the law firm before you choose to work with them. If you're interested in becoming a sports lawyer, it's important that you research the law firm's background. You' ll want to find out how long the firm has been in business, how many different sports law topics it has dealt with, and what kind of sports law firm that you'll be working with.In order to be successful at becoming a sports lawyer, you need to do as much research as possible to find out everything you can about the sport's law firm. This will ensure that you get the best possible sports law firm, one that will be knowledgeable about your specific sport, and one that will be willing to help you with your specific needs.

Interesting College Research Paper Topics - What You Should Consider

Interesting College Research Paper Topics - What You Should ConsiderWhether you are looking for interesting college research paper topics, or you simply need a quick assignment for your college paper writing, you will want to start with an idea. Here are some tips on what to consider when looking for a topic. Although you may find the idea is rather broad, the choices for your paper are narrowed by taking into account these factors.One of the first things you will want to do is to decide which of the research paper topics that interest you most. You should look at all of the topics that you have not yet given serious thought to, and then you should think about which ones might be the most interesting to you. Once you have chosen a topic, you will want to write out a very detailed outline of what you would like to say. Make sure that you can follow the outline closely or else you will not have much success in getting the research paper out.Now you want to decide what type of writing s tyle you want to use for your paper. If you do not know where to begin, you will want to read some writing samples, either online or in a book, and then decide if you like how they write and how their style is balanced. A good example is a newspaper reporter who is trying to capture the spirit of a city.For example, he writes very naturally and as if he is walking down the street. He also talks a lot about how he is doing his job, even if he is not necessarily looking to capture your attention. Even though he may not be looking to answer questions directly, he does want you to ask questions and he wants you to read his writing and pick up on some of the qualities that he has. When writing his paper, he takes it in stride, but it is not written for you, but it is written to grab your attention.An important consideration when choosing a topic is whether you want your writing to be easily understandable. You want the information to be easy to understand for the reader. Many students ch oose topics that are just plain hard to understand, because they do not like to get it all out there and read it over again.When you find some interesting college research paper topics that are available to you, write down all of the details that you want to include. Keep in mind that you should focus on a very limited amount of words per topic, so do not try to make too many big ideas in your papers. Keep in mind that you will only use this information once, so make sure that the information is very concise.An important role to play is writing your own essay, so that you will be able to use your own thoughts and ideas, rather than using someone else's. It may be helpful to consult a professional writer who specializes in research paper topics, so that you can use their experience to help you through the process. Finally, remember that the more time you spend working on your research paper, the better it will turn out.

Scholarship Essay Samples For College Students Nurse

Scholarship Essay Samples For College Students NurseScholarship essay samples for college students nurse can make the difference in a bright future for an aspiring nurse. These samples are easy to find, and they can be found in newspapers, magazines, online and many other places. They are not just a bunch of formulaic words that come at you as if they were too hard to type.You are able to find essay samples for college students nurse that offer a wide range of styles, from traditional to casual, which is perfect for your short essay. You are able to find essay samples for college students nurse that will reflect your personality, personality traits, career goals, personal aspirations, and other aspects that you would like to highlight when you write your college essay.Scholarship essay samples for college students nurse are the best way to get started. They will help you with writing your essay without having to worry about being patient and trying to figure out how to get it all don e. Scholarship essay samples for college students nurse are different from the conventional ones, and they can be confusing to the common readers. They are quite often designed by writers who are taking care of their own needs as they complete their education.When you are writing your essay on the topic of nursing, you will need to look for essays that contain essay samples for college students nurse. It will help you get started as you are reading through some other students who have written essays on this topic. They will provide the information you need to work from to create your own essay, and this will not only benefit you but also the college you are going to attend.Some essay samples for college students nurse are written by a major figure in the field, and you will find these in most national magazines. You are able to find them easily and you will not have to do much research on the subject to get them. You will find several essaysamples for college students to nurse, but if you want to come up with a better one, you should concentrate on the specialties that you are interested in. This is the best way to make a statement about yourself when you are writing your essay.You can always learn from other students who have done the same thing that you are about to do, so you will not have to spend too much time figuring out what you can write about. However, to get the best of these essays, you should have some experiences with the subjects you are going to cover. Writing college essays are not something that you are going to do every day, so you are going to need some practice to be able to produce an essay that will be polished.If you are a fan of essays, then you are going to find essay samples for college students nurse to be beneficial to you. They will teach you all the ins and outs of writing a good essay, and you will find a lot of examples to look through. You will be able to get started on your way to becoming a good writer without worrying about where to start or which particular topic you need to write about.

Bill Gates Essays (678 words) - Nerd Culture,

Bill Gates Bill Gates Ever think about paying cash for your house? How about your car? You would probably consider it if you carried that kind of cash just in your wallet. Wouldn't you? Just picture walking down to the nearest bank and saying I'd like to cash my paycheck....Oh and by the way, I need 100 million in 1000's, and the other 100 million in 100's....thanks! This is probably the norm for a man named William Henry (Bill) Gates III, who is currently the richest man in the world with over 44 billion dollars in worth. Bill Gates was born October 28, 1955 in Seattle, Washington. Bill was the only son and the middle child of William and Mary Gates. He had two sisters, Kristianne and Libby. Bill nickname growing up was Trey because of the III after his name. Bill's childhood was somewhat uneventful until his second year at Lakeside Private School, which his father insisted he attend. The school had contracted with General Electric to time-share a computer mainframe. The school received an ASR-33 type teletype machine to interact with General Electric's Mark II time sharing system. This system costed the school about $89 a month and $8 per hour for time on-line. Gates quickly ran bills in excess of $2000 a month with his friends. This great amount of time on the computer soon resulted in Bill surpassing all his teacher's knowledge about computers. With this knowledge Bill and his friends formed a group called the Lakeside Programming Group or LPG. It was in this group that Bill Gates would meat future co-founder of Microsoft, Paul Allen. Before starting college at Harvard University, Bill was busy figuring the costs of building a personal computer. He had seen ads in Popular Science Magazine for Intel's latest processor the 8008 which costed about $860. The computer was not complete before Bill left for college, but would later occupy a major portion of his time. After Bill's freshmen year, he got hired in the summer to work for Information Sciences Inc. (ISI), where he developed a useful payroll program that also debugged programming code. Meanwhile in his spare time Bill and Paul continued to work, eventually finishing a project, which calculated traffic on a given road called Traf-O-Data. This was sold to the city of Seattle. Soon after this, Bill and Paul would develop a better version of BASIC for the Intel 8008 processor. Bill wanted Altair, the maker of the processor, to purchase a license for his BASIC. Since Altair wanted some additional features, Bill then brought in Ric Weiland who helped in the additional developing of the software. These changes were ready to run in July of 1975 and Micro-soft was born. Micro-soft which soon dropped the hyphen from the name, now was receiving contracts from all the big manufacturers such as Intel, Motorola, Commodore, and General Electric. These contracts resulted in Bill being to wrapped up in filling the demands that he left Harvard after finishing 6 semesters. In 1978 Microsoft moved its operations to Redmond, Washington, where it has constantly expanded its campus. In 1980, IBM came to Microsoft to find an operating system for their new PC computer line. The two companies worked together to start the modern PC era that we know today. Bill recently married co-worker Melinda French on January 1, 1994 after a long hiatus as the richest bachelor in the world. Now he is just the richest married man in the world. Bill knew exactly what to market and how to market it. He realized what computers could do for society and utilized the idea. Overall by looking at Bill Gates road to success we can see just how determination, long hours, and hard, hard work can pay off. Bill Gates is the genius behind perhaps the most powerful private company in the world, Microsoft. By simply looking at these accurate statistics from an Internet source of mine we can see just what his genius has earned him: Biographies