Nitration of Bromobenzene free essay sample

This experiment focuses on the concept of electrophilic aromatic substitution, which is a type of benzene reaction. This reaction consists usually of benzene and an electrophile. The role of the nucleophile is played by the double bond on the benzene ring. IT will react will the electrophile and this reaction will form a carbon cation intermediate. With additional reactions with a base, the electrophile fundamentally replaces the hydrogen of the benzene. Benzene is classified as one of the countless aromatic molecules, and this is just a plain benzene molecule. A different type of aromatic molecule will consist of different molecular structures, while the difference in their arrangement will give different properties. With regards to our lab, the aromatic samples hold a single distinct discrepancy. They all consist of different functional groups. As mentioned in previous lab reports, functional groups are the chemical components on an organic molecule. These particular components of the molecules institute the chemical properties of the molecule. We will write a custom essay sample on Nitration of Bromobenzene or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Furthermore, the functional groups have fundamental role during the electrophilic aromatic substitution. It impinges on the reaction in two ways: the rate of the reaction and the directional control. In relation to this specific lab, we will zero in on the directional control of aromatic substances (nitration of bromobenzene). The directional control of benzene is inclined by the functional groups and the dissimilarity in the functional groups will cause the electrophile of the aromatic substance to react in a specific manner. As on example, the reaction in our lab is a mono-substitution reaction. In simpler words, one electrophile group is substituted for a proton of the benzene ring. And because of the specificity of aromatic substances, the electrophile is capable of binding to certain areas of the ring. In the monos-substitution reaction, the electrophile has the potentiality to bind to three areas. With these different areas, the reaction can potentially form three types of products: ortho, para, and meta. IN the ortho products, the electrophile is one carbon away from the functional group. Para, on the other hand, is two carbons from the functional group. And finally the Meta product, the electrophile is three carbons from the functional group. Based on the presence of different functional groups, the amounts of the formation of these products will vary.

Writing Sample DBQ Essays With Image Search

Writing Sample DBQ Essays With Image SearchIf you are considering starting a research company, you may want to consider writing sample DBQ essays with image search. A database of samples that allow students to see how a solution can be applied in real-life situations is an important part of the learning process. You can use these data sets to train and develop a potential employee. By including this information in your sample DBQ essays with image search, you will allow yourself to go beyond simple recommendations and become more creative.DBQ is one of the most popular ways to help you with a job interview. However, if you have ever written sample DBQ essays with image search before, you know that it is easy to do. All you need to do is select one of the available programs on the Internet and then complete a personalised form.The English test is not the most difficult part of this exam. It is actually a section called 'Description of Science.' This section focuses on using your knowl edge of science to answer questions that were already asked in the English section. By answering these questions correctly, you are giving a demonstration of your ability to understand and explain scientific concepts.The data on which you will be based the English test are supplied by a company called Banyan. These samples come in two different formats. The first is a large color photo that is easier to study on than a plain English version of the same image.The second format allows you to fill in the text. Although the answers on these two sample DBQ essays with image search are not particularly interesting, they provide you with a feeling of satisfaction when you get to the end. On the other hand, if you did not take this exam, you would most likely be rather bored because you would be answering difficult questions.English is the easiest language to learn. But because it is an extremely complex subject, it can be difficult to learn when you are faced with many unfamiliar words. It is necessary to familiarize yourself with different types of grammar to help you remember the correct way to word the rules. Without the proper grammar training, students can find it difficult to write.Many students who take English tests are more concerned about passing the exam rather than how the answers will affect their career. By including this in your sample DBQ essays with image search, you will provide yourself with the necessary tools to be successful.

Turman Show Essay Essays - Bereshit, Book Of Genesis, Adam And Eve

Turman Show Essay Essays - Bereshit, Book Of Genesis, Adam And Eve Turman Show Essay Paradise Lost : The Truman Show & The Garden of Eden Cristof's creation and the Garden of Eden parallel on many accounts and throughout both the simalarities and difference became quite clear . The two worlds had many elements of utopian thought which makes both worlds perfect . Furthermore , that element , utopianism , would make anyone want to leave because through reality we learn nothing is real . Throughout The Truman Show , and The Garden of Eden there were many elements that had simlarities between the two worlds of utopia . In the Truman Show and The Garden of Eden we saw that there was no violence , no crime, no hatred , no destruction . An example of how The Truman Show had no elements of crime , hatred or violence was whenever something bad happend , it was all an act that seconds later was cleaned up . For example , when Truman went to see what was beyond there was traffic . Second later in the same place , there was none . In the Garden of Eden , the reason for no violence , destruction and hatred was simply because that there was only Adam and Eve . Adam and Ever were alone , no one to influence them .... so they thought . Another example of similarities was how Seanhaven was the perfect living environment . Seahaven had everything that anyone that doesn't know about the outside world would want such as : places to go to let out frustrations , places to enjoy themselves but more importantly they made believe that it was reality . The Garden of Eden has many of the same environmental facts as Seahaven such as the fact that everything that Adam and Eve needed they received simply because everything was provided . Adam and Eve needed nothing more then to kill or take what they needed from the society which in every way was perfect . The final part that had many similar elements between The Truman Show , and The Garden of Eden was the fact that both Seahaven and The Garden of Eden had one Lord or Creator . Seahaven had Cristof as its sole creator . The Garden of Eden as we all know is God who was the know all and end all. The characters , Truman & Adam and Eve , where persuaded by different reaons but never the less curiousity made them want to experience the joys of new experiences and new life they only dreamed of . In the case of The Garden of Eden and Adam and Eve the reason was that little voice in the back of your head telling you that everything is going to turn out better then how it started . In the Garden of Eden , the little voice just happend to be The Devil himself . The Devil persuaded Adam and even into going into the forbidden tree to eat some forbidden fruit . He didn't haveto beg and plead , he didn't have to make offers . All he had to do was say that its new , its exciting , its something you want . Truman had an influence , not quite like the one Adam and Eve had , but never the less an influence . His influence was his love outside of the show . The women he met for brief seconds in one of his shows has become the reason for being . Everytime he was on TV , she sat and watched with great anticipation . Especially when he was in the proccess of creating a composite picture of her so he could never forget her . Truman and Adam & Eve had one main similarity , that being the curiousity of living outside of the perfect world . Truman started to realize that sometimes with life you rather live through the bad only to know that the good is actually there . Its the whole reality issue where when something happends that is so good and keeps you so high off the ground that you lose touch with reality , imagine living in that world . That is what

10 Fascinating Facts About Dung Beetles

10 Fascinating Facts About Dung Beetles Is there anything cooler than a dung beetle pushing a ball of poo? We think not. But lest you disagree, please consider these 10 fascinating facts about dung beetles. 1. Dung Beetles Eat Poop Dung beetles are coprophagous insects, meaning they eat excrement of other organisms. Although not all dung beetles eat poop exclusively, they all eat feces at some point in their life. Most prefer to feed on herbivore droppings, which are largely undigested plant matter, rather than carnivore waste, which holds very little nutritional value for insects (and really, who could blame them for that preference). Recent research at the University of Nebraska suggests dung beetles may be most attracted to omnivore excrement, since it provides both nutritional value and the right amount of odor to make it easy to find. 2.  Not All Dung Beetles Roll Their Poop When you think of a dung beetle, you probably picture a beetle pushing a ball of poop along the ground. But some dung beetles don’t bother rolling neat little dung balls at all. Instead, these coprophages stay close to their fecal finds. Aphodian dung beetles (subfamily Aphodiinae) simply live within the dung they find, often cow patties, rather than investing energy in moving it. The earth-boring dung beetles (family Geotrupidae) typically tunnel below the dung pile, making a burrow which can then be easily provisioned with poop. 3. Dung Beetles Provision Their Nests With Poop for Their Offspring When dung beetles do carry or roll the dung away, they do so primarily to feed their young. Dung beetle nests are provisioned with poop, and the female usually deposits each individual egg in its own tiny dung sausage. When the larvae emerge, they are well-supplied with food, enabling them to complete their development within the safe environment of the nest. 4. Many Dung Beetles Are Good Parents Dung beetles are one of the few groups of insects that exhibit parental care for their young. In most cases, child rearing responsibilities fall on the mother (surprise!), who constructs the nest and provisions it with food for her young. But in certain species, both parents share child care duties to some degree. In the Copris and Ontophagus dung beetles, the male and female work together to dig their nests. Certain Cephalodesmius dung beetles even mate for life. 5. Most Dung Beetles Are Particular About the Poop They’ll Eat For most dung beetles, not just any poop will do. Many dung beetles specialize on the dung of particular animals, or types of animals, and simply will not touch the poo of other critters. Australians learned this lesson the hard way, when the outback was nearly buried in cattle dung. Two hundred years ago, settlers introduced horses, sheep, and cattle to Australia, all grazing animals that were new to the native dung beetles. The Australian dung beetles were raised on poop from Down Under, like kangaroo poo, and refused to clean up after the exotic newcomers. Around 1960, Australia imported exotic dung beetles that were adapted to eating cattle dung, and things got back to normal. Phew. 6. Dung Beetles Are Really Good at Finding Poop When it comes to poop, the fresher the better (at least from the dung beetles perspective). Once a dung patty has dried out, it’s less palatable to even the most dedicated poop eater. So dung beetles move quickly when an herbivore drops a gift in the pasture. One scientist observed 4,000 dung beetles on a fresh pile of elephant scat within 15 minutes after it hit the ground, and shortly thereafter, they were joined by an additional 12,000 dung beetles. With that kind of competition, you have to move quick if you’re a dung beetle. 7. Dung Beetles Navigate Using the Milky Way With so many dung beetles vying for the same pile of poop, a beetle needs to make a quick getaway once he’s rolled his dung ball. But it’s not easy to roll a ball of poop in a straight line, especially when you’re pushing your ball from behind using your hind legs. So the first thing the dung beetle does is climb atop his sphere and orient himself. Scientists had long observed dung beetles dancing on their poo balls, and suspected they were looking for cues to help them navigate. New research confirmed that at least one species of African dung beetle, Scarabaeus satyrus, uses the Milky Way as a guide to steering its dung ball home. The researchers placed tiny hats on the dung beetles, effectively blocking their view of the heavens, and found the dung beetles could only wander aimlessly without being able to see the stars. 8. Dung Beetles Use Their Poop Balls to Cool Off Have you ever walked barefoot across a sandy beach on a scorching hot summer day? If so, you probably did your share of hopping, skipping, and running to avoid painful burns to your feet. Since dung beetles often live in similarly hot, sunny places, scientists wondered if they, too, worried about burning their tootsies. A recent study showed that dung beetles use their dung balls to cool off. Around noon, when the sun is at its peak, dung beetles will routinely climb atop their dung balls to give their feet a break from the hot ground. The scientists tried putting tiny, silicone booties on the dung beetles, and they discovered the beetles wearing shoes would take fewer breaks and push their dung balls longer than the beetles that were barefoot. Thermal imaging also showed that the dung balls were measurably cooler than the surrounding environment, probably because of their moisture content. 9. Some Dung Beetles Are Surprisingly Strong Even a small ball of fresh dung can be hefty to push, weighing 50 times the weight of the determined dung beetle. Male dung beetles need exceptional strength, not just for pushing dung balls but also for fending off male competitors. The individual strength record goes to a male Onthphagus taurus dung beetle, which pulled a load equivalent to 1,141 times its own body weight. How does this compare to human feats of strength? This would be like a 150 lb. person pulling 80 tons! 10. Millions of Years Ago, Ancient Dung Beetles Cleaned up After Prehistoric Giants Because they lack bones, insects rarely show up in the fossil record. But we do know that dung beetles existed around 30 million years ago, because paleontologists have found fossilized dung balls the size of tennis balls from that time period. Prehistoric dung beetles collected the poop of South America’s megafauna: car-sized armadillos, sloths taller than modern houses, and a peculiar long-necked herbivore called Macrauchenia.

The responsibility to protect Essay Example | Topics and Well Written Essays - 3250 words

The responsibility to protect - Essay Example 1). There has always been a traditional emphasis on state sovereignty, which means that every nation state is free to govern its country and its people as it sees fit, without intervention from other countries. That said, there have always been threats to this sovereignty, due to the global nature of the world and nations who try to intervene for various purposes. However, until the early 2000s, there has not been a perspective that the sovereignty of nations should be compromised in the cases of mass genocide and the like, or at least there has not been the perspective that there should be a doctrine to address this, and that this doctrine should be viewed through the eyes of the victims. That all changed with the Responsibility to Protect doctrine. This doctrine, while imperfect, and viewed with a great deal of suspicion by many countries as a â€Å"Trojan Horse† through which nations can invade one another with ostensible humanitarian goals, has still been beneficial to som e extent, although has not seemed to go far enough in abating atrocities that have occurred around the world. This paper will examine the nature of sovereignty, the origins of the responsibility to protect, and the effect it has had on the world community since its inception. The Traditional Meaning of Sovereignty In order to better understand the concept of the responsibility to protect, and how it diverges from traditional understandings, one must understand the meaning of state sovereignty, which has been described as â€Å"a defining principle of interstate relations and the foundation of world order† (Supplement to the International Commission on Intervention and State Sovereignty). Traditionally, nation-states have sovereignty, which means that each nation is free to rule over its people as it sees fit, and dispose of its resources in same manner. However, this power is not absolute, and it subjected to regulations and constraints from the international body (Internatio nal Commission on Intervention and State Sovereignty, p. 12). One of the traditional tenets of state sovereignty is the tenet that each nation respects other nation’s sovereignty, so that the policy of non-intervention is the international norm. If this is violated, and another nation penetrates a nation’s sovereignty, then the offended nation has the right to defend itself (International Commission on Intervention and State Sovereignty, p. 12). The United Nations was the body that protected state sovereignty. However, the concept of state sovereignty has always been a tenuous one. The powerful typically invade the province of nations, and the globalization of today’s world recognizes that environmental, cultural and economic influences do not respect national borders, partly due to new technologies and advances in communication (Supplement to the International Commission on Intervention and State Sovereignty) The traditional notion of sovereignty has further ev olved to where states agree that sovereignty is a responsibility. As such, states agree that protecting its citizens is a condition for maintaining its sovereignty. Further, as a condition of sovereignty, national leaders are accountable for their own actions, and nations are accountable to the international bodies for how that nation treats its populace (International Commission on Intervention and State Sovereignty, p. 12). The Responsibility to Protect The Responsibilit

Prejudice & Discrimination Essay Example | Topics and Well Written Essays - 1250 words

Prejudice & Discrimination - Essay Example According to the study a person’s interaction with an elderly person can be easily affected consciously or unconsciously. From a person’s perceived age social and cognitive competencies, political and religious beliefs and physical abilities are assumed by younger people, these assumptions help people know how to act and look for the right information and remember.From this paper it is clear that  ageism is something that everyone if lucky would eventually join. It would not be surprising and inherently offensive when one notices a person’s age early in a social encounter, the way at which this information is taken can be destructive to the older person. Ageism, racism and sexism eventually becomes institutionalised which would then affect hiring decisions, medical care and social policies.  Most people get scared of approaching old age, becoming old was once upon a time seen as a natural process, but in recent time ageism is seen to be a social problem. The media shows only 1.5 per cent of the elderly people and most of which the majority of them are in minor roles.  After the Industrial Revolution swept through the world more individuals lived longer. This was due to more food production, better medical care, and other advancements that allowed workers to live longer.  As workers lived longer, the need to have a retirement for the retiring elderly became a necessity. The reality of industrial economy was each generation now supported themselves.

Jane Goodall Speaking Critique :: essays research papers

On February 2, 2002, Dr. Jane Goodall appeared at Clemson University to speak to the students and public. I will attempt to evaluate her performance as a public speaker. Specifically, I will begin by describing the setting and audience for the event. I will then identify the ways in which Dr. Goodall would be described as an effective public speaker in the context of the textbook, Excellence in Public Speaking. I will then analyze the aspects of her performance that the textbook might have considered lacking. Finally, I will devote a few words to my personal opinion of the effectiveness of Dr. Goodall’s presentation. Naturally, a speaker of Dr. Goodall’s prominence was expected to draw quite a crowd. She was speaking at the Brooks center, which, although large, was not expected to have the necessary capacity for all the people who wanted to attend the event. Clemson students got first chance at the tickets, and when the box office opened at 6:30, the line already extended half a mile down the sidewalk. I was fortunate/foresighted enough to pay a Clemson freshman to start standing in line for me at 4:00, so my seat was perfectly centered in the auditorium, seven rows from the front. The hour-long presentation was ultimately concerned with rallying support for the Jane Goodall Institute and its â€Å"Roots and Shoots† program. Not surprisingly, the audience was comprised almost exclusively of admirers of Dr. Goodall’s work. Due to the shortage of seating in the Brooks center, the live audience consisted primarily of Clemson students and professors. Apparently there was overflow seating in other buildings; the people who couldn’t fit in the Brooks center were provided with a closed-circuit television broadcast of the presentation. Dr. Goodall’s â€Å"attention-getter† was easily the most unique I’ve seen. She walked onto the stage, silently organized her notes, then held her head back and began hooting like a chimpanzee (having worked with chimps for some forty years, she does an uncannily accurate impression). She then smiled beatifically and announced, â€Å"that’s chimpanzee for ‘Hello’.† Not a soul in the audience doubted her word. Essentially, in one action, she got the audience’s attention, introduced herself, and established credibility (though given her reputation, credibility did not really need to be established). Dr. Goodall quickly segued into a personal story about how she couldn’t have achieved anything without the unwavering support of her mother, establishing an emotional rapport with the audience – almost saying â€Å"It’s okay, I’m not better than you, you could just as easily be as remarkable a person as you seem to think I am.