Identifying Organic Compounds Lab Report Essay Example

Identifying Organic Compounds Lab Report Essay Example Identifying Organic Compounds Lab Report Paper Identifying Organic Compounds Lab Report Paper Materials: 9 test tubes Test tube rack Test tube holder Grease pencil Hot plate 20 ml honey solution 20 ml egg white and water mixture 20 ml corn oil Oats and water 20 ml gelatin and water solution 20 ml potato and water mixture 20 ml apple juice and water mixture 20 ml unknown substance #1 0 ml unknown substance #2 Paper towels 600 ml beaker Brown paper Beirut reagent Benedicts solution Iodine solution Procedure: 1. Place test tubes in the test tube rack. Use the grease pencil to label each test tube based on the substance that will be placed in them. . To test for starches, fill each test tube with ml of the substance indicated by the label. 3. Add 5 drops of iodine solution to each test tube. The contents will change too blue-black color in the presence of starch. 4. Record your observations. 5. Wash test tubes thoroughly. 6. To test for sugar, fill each test tube with ml of the substance indicated by the label. Add 10 drops of Benedicts solution to each test tube. 7. Fill the bea ker half-way with water. Heat the water with the hot plate to a gentle boil. 8. Place tubes into beaker with the test tube holder and wait 5 minutes, then remove the test tubes with the test tube holder and place them back into the test tube rack. 9. Check for a change in color from blue to green, yellow, orange, or red in the presence of sugars. 10. Record your observations then wait for the test tubes to cool and wash them thoroughly. 10. To test for proteins, fill each test tube with ml of the substance indicated by the label. Add 5 drops of Beirut reagent o each test tube. 11. Gently shake the contents of each tube. Beirut reagent changes from blue to violet in the presence of proteins. 12. Record your observations then wash test tubes thoroughly. 13. To test for lipids, divide the piece of brown paper into 9 equal sections. 14. Write the name of one test substance in each section. 15. Rub a small amount of each substance onto its corresponding section. 16. Wait five minutes till dry. 17. Hold paper up to light. A translucent spot indicates the presence of lipids. Data: Substance Lipid Test Carbohydrate Test Protein Test Honey Starch Sugar + (orange Benedict)- Egg White Starch Sugar + (violet Beirut) Corn Oil + Starch Sugar Oats- Starch + Sugar (black Iodine) Gelatin Starch Sugar + (violet Beirut) Potato Starch + Sugar (black Iodine) Apple Juice- Starch Sugar + (orange Benedict)- Unknown 1 Starch Sugar + (orange Benedict)- Unknown 2 Starch Sugar + (violet Beirut) Analysis: In this experiment, every substance tested positive for at least 1 organic compound. Corn oil tested positive for lipids. Honey and oats tested positive for starch. Honey, apple juice, and unknown 1 tested positive for sugar. Egg white, gelatin, and unknown 2 all tested positive for proteins. So, not a single substance didnt test positive for at least 1 organic compound. All the indicators used in this experiment change color when in the presence of a compound; therefore, they chemically react with the compound. No errors were made during this experiment because all directions were followed carefully and the indicators were used and read properly. Conclusion: My hypothesis was that honey will contain sugars, egg white contains proteins, corn oil contains lipids, oats contains starches and proteins, gelatin contains sugars and proteins, potatoes contain starch, and apple juice notations lipids and sugars. My hypothesis was mostly correct. Oats do not contain protein, gelatin does not contain sugars, and apple juice does not contain lipids. Since apple juice is sweet, I guessed that it would contain fats as well as sugars; however, it does not contain lipids. I thought that gelatin would contain sugar because it too is sweet, but it only contains proteins. Oats do not contain protein as I had hypothesized, and I guessed that it did because I had a gut feeling. I couldnt support that hypothesis because I had little experience with oats. That is why my hypothesis is mostly correct.

How to Write a Compare and Contrast Essay

How to Write a Compare and Contrast Essay How to Write a Compare and Contrast Essay In our daily life we very often employ the method of compare and contrast as to take some decision over a controversial subject. Basically, to compare and to contrast are two different ways of treating a subject, but still they seem interdependent and correlated to each other. For, every time we compare two or more entities, we conceive them as different from each other (otherwise, they would be one and the same thing). Therefore, these two methods are usually used together, particularly while writing an essay which is focused on two or more subjects. Practical use If you were assigned to write a compare and contrast essay, your instructor probably wants to test some of your skills, such as analytical reasoning, watchfulness, ability to infer from pure sense-data, and others. This essay may concern every possible field of human activity- literature, political sciences, sport, biology, etc. Remember that it is not that difficult to write: you have to apply some skills which you (unconsciously) use in your daily life. Instructions for writing a compare and contrast essay There are several steps which you can follow while writing your compare and contrast essay. 1. Choose two things which are evidently related to each other. You cannot compare a car with a mountain, for example. It is always better to compare two things of the same kind. When you have more than two things in mind, you must discover more connections between them, which ensues in a chaotic description of subjects and relationships (you must compare thing A with thing B, then thing A with thing C, and then thing B with thing C). Another advice is to focus your essay on material objects, or at least things which are easy to be defined (if you compare Newton’s physics with Quantum theory in general, you will probably get nowhere). 2. This essay is divided into two main parts: compare (find similarities) and contrast (find differences). We advise you to choose three similarities and three differences, as it will help you to organize your paper in a better way. Think more about the entities compared: how people use them, what is their function, what are their advantages and disadvantages. 3. Set forth your thesis. As every other type of essay, this one should be based on a well-proven thesis statement. The easiest way to construct is to write down your personal opinion: which one of these things you prefer, or like, or use, and why. Then list three similarities and three differences. At the end of the essay re-state your thesis in brief, trying to convince your reader. At the same time, the thesis statement must be justified, and have aesthetical structure, so the text should flow and catch the reader’s attention. If you merely describe both things, you will not tell the reader anything new. And every essay should give some new information to the reader, or at least formulate it in another way. 4. Proofread your paper and check for logical inconsistencies. Before handing it to your teacher, ask a friend or forum users to give feedback. It does not mean to ask someone else to write it instead of you. You must simply distance yourself from your essay in order to analyze its structure and internal logic. The compare and contrast essay is one of the easiest types of essays, but any underestimation of your assignment may have negative consequences: to write in a chaotic way, or merely to describe the objects of your writing. This essay should present and defend your personal opinion through relevant facts and information.

Yet 3 More Types of Hyphenation Errors with Numbers

Yet 3 More Types of Hyphenation Errors with Numbers Yet 3 More Types of Hyphenation Errors with Numbers Yet 3 More Types of Hyphenation Errors with Numbers By Mark Nichol Confusion about the relationship between hyphens and numbers, whether they appear in numeral or spelled-out form, is rampant. Each of the following examples erroneously employs hyphens; discussion after each sentence explains the error, and a revision corrects it. 1. Because of concussions, he had played just sixty-nine games in two seasons between 2010-2012. Using a hyphen rather than an en dash in a number range is generally an error of ignorance (though some publications, with full awareness of the distinction between the two symbols, confusingly insist on doing so anyway). However, linking 2010 and 2012 in a number range with any connective symbol is redundant to preceding the numbers with between, which should be counterbalanced with an intervening and: â€Å"Because of concussions, he had played just sixty-nine games in two seasons between 2010 and 2012.† An alternative revision, correctly employing the en dash, is â€Å"Because of concussions, he had played just sixty-nine games in the 2010–11 and 2011–2012 seasons.† 2. This goal may be achievable in a 12-to-24 month time frame. Just as it is not necessary to repeat the word for the unit of time in â€Å"12 months to 24 months†- the first iteration of month is implicit- the word may be elided from a version of the phrase that uses hyphens. But do not link the two numbers with one or more of these symbols (or with one or more dashes); to serves the connective function, and the hyphens represent that the numbers, when combined with month, modify â€Å"time frame.† Form the construction (which employs a syntactical technique known as suspensive hyphenation) as shown here: â€Å"This goal may be achievable in a 12- to 24-month time frame.† Also, many publications spell out numbers up to one hundred, so it might be correct (or preferable to you, if no specific style is required for your content) to instead write, â€Å"This goal may be achievable in a twelve- to twenty-four-month time frame.† 3. A similar incident occurred four-and-a-half years later. The words representing a number consisting of a mixed fraction should be hyphenated only if the phrase modifies a noun that follows it. Here, the words in the phrase should stand on their own: â€Å"A similar incident occurred four and a half years later.† (Compare â€Å"A similar incident occurred after a four-and-a-half-year interval.†) We had already covered hyphenation errors here and here. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Punctuation category, check our popular posts, or choose a related post below:What Does [sic] Mean?What to Do When Words Appear Twice in a RowPrepositions to Die With

Ethical Dilemma vs. Ethical Lapse Coursework Example | Topics and Well Written Essays - 250 words

Ethical Dilemma vs. Ethical Lapse - Coursework Example The decision made was not ethically right for the situation. The manager should have let John go. Having a comfortable working environment in the workplace is crucial to the output of any organization. Also, the organization will grow economically, if the output of all members is maximized rather than focusing on the output of one individual (LRN, 2007). An ethical lapse is where the concerned individual makes wrong decisions that result in a negative outcome (Kurtz & Boone, 2011). An example of a situation that focuses on ethical lapse is discussed below. A friend of mine (Mark) worked in a company that deals with the provision of mobile service network. He got information that the company was experiencing financial problems, and they were being forced out by the competition. Talks about the company being sold out to another service provider were undergoing. Mark informed his friends and relatives of the situation of the company and urged them to sell off their stock before the announcement was made public. The decision that Mark made was ethically wrong. Manipulation of stock sales based on internal information is a disadvantage to uninformed parties as they suffer great losses while the informed parties make huge profits. Mark should not have had informed his friends and relatives beforehand. He should have waited for the public announcement so that the losses could be distributed equally among the shareholders of the

Write a PESTLE analysis about HMV Essay Example | Topics and Well Written Essays - 500 words

Write a PESTLE analysis about HMV - Essay Example Nonetheless, the 2008 crisis caused this to change in May 2010. In addition, the heavy debt on UK has caused the British government to instil much nationalisation aimed at supporting its economy. The British government has indicated a lot of support for the fight against piracy. The Digital Economic Act 2010 has propagated the pursuance and arrest of persistent offenders with music labels and movie companies tracking illegal downloads from peer to peer networks using IP addresses. Despite the negative impact of the financial crisis, the UK remains the third biggest European economy (Central Intelligence Agency 2011). Its inflation and public debt grew from 3.3% to 2.2% and 68.2% to 76.5% respectively. With a GDP of USD 2.259 trillion in 2010, the unemployment rate also grew from 7.6% in 2009 to 7.9% in 2010. The country ranked 9th in 2010 in terms of purchasing parity which had increased from USD 2.268 trillion to 2.154 trillion to 2.189 trillion from 2008 through 2009 and 2010 respectively. The British government’s Environmental Protection Act 1990 cited by the Parliamentary Office of Science and Technology (2004) prohibits the firm from polluting the environment. The social analysis of the UK ranks it 22nd globally in population having 62,689,362 people as of July 2011, with the median age being 40 (Office for National Statistics 2011). The literacy level stands at 99% with urbanization being at 80% as of 2010. The British are known to be conscious of their benefit in purchases including quality, price, environment and brand. The country has musicians and bands in traditional and contemporary music. Expenditure on research and development in the UK stood at â‚ ¬29.824 billion, which represents 1.84% of its GDP (Office for National Statistics 2011). There have been indications that the digital infrastructure in the country does not suffice in speed and penetration and therefore need to be improved (British Council for Science and Technology, 2010).

Personal and Managerial Effectiveness Assignment

Personal and Managerial Effectiveness - Assignment Example Without which, an organization may not sustain or prosper effectively in this age of competitiveness among other rival players. This is because; interaction or communication with diverse individual or employees within an organization is the mother of creativity or innovation. It might prove effective for the organization in enhancing its profit margin and reputation in the market among other rival players. As a result, the image and uniqueness of the organization might also get enhanced thereby amplifying its level of sustainability in long run. Therefore, it might be depicted that interaction with the workforces of diverse culture, creed and beliefs is extremely essential to present innovative products and services to satisfy changing needs. This report mainly highlights the importance and definition of diversity along with its negative effects within a work place. Other than this, it also describes the essentialities of a diverse workforce within an organization as well as resoluti on of the issues of the diversity in an effective way so as to make it an opportunity for further improvements. Discussion What is diversity? Diversity is recognised as the procedure of acknowledging, accepting, evaluating, and analysing the differences of the viewpoints of the individual of varied age-groups, creed, ethnicity, gender, mental capability, race, spiritual practice and many other specifications. Other than this, it is also described as the process to understand and respect the ideas and suggestions of each and every individual within an organization thereby amplifying its uniqueness among all. Therefore, diverse workforces might prove effective in enhancing the productivity and profitability of the organization in long run among other rival players. So, keeping the concept of unity in mind, the challenges of diversity is fading slowly and gradually from the corporate organizations in the entire globe. Essentialities to manage diverse workforces In today’s era, d iversity is the root-cause of success of maximum extent of the organization operating in different segments. However, it might be possible only if it may be managed effectively and continuously. Only then, varied types of talents and capabilities of the employees working within an organization might be explored resulting in amplification of the productivity and efficiency in the market among others. Along with this, it might also prove effective in presenting varied types of inventive products so as to cope up with the challenges of the changing situation. As a result, it might also help the organization to improve its distinctiveness and reputation in the entire market among other rival players. Therefore, it might be depicted that diverse workforce or multicultural workforce helps in enhancing the performance and image of the individual as well as the organization in the society or market among others. Challenges Faced By 21st Century Organizations due to Diverse Workforces In ord er to retain the level of sustainability and competitiveness in the market for long run, the management of most of the organizations are devoting their maximum time and concentration to sort out diversity issues such as discrimination, negative attitudes, behaviours, conflicts, complaints, equal opportunities for females, organizational restructuring and many others. The prime cause behind it is to enhance their level of

Nude Study of Thomas E. Mckeller by John Singer Sargent Essay

Nude Study of Thomas E. Mckeller by John Singer Sargent - Essay Example From that time, he grew up to be an accomplished in music, art, and literature. By seventeen, he was well accustomed to expansive masters of painting. He dealt majorly on portrait paintings, but he was also skilled in painting landscape and the use of watercolor (Joselit 65). He also went to study in Germany and Italy and later in Paris under Auguste Emile. Sargent also studied with Emile, whose influence changed his artistic life from 1874 to 1878. In 1879, his effort in painting the portrait of his teacher, Emile was met with approval by the public, and this gave him the future direction. He created more than two thousand watercolors, nine hundred oil paintings and countless charcoal drawings and sketches. In 1877, Sargent had a successful exhibition at the Paris salon. His travels to Holland and Spain to study fans Hals and Velazquez, visits to North Africa and Brittany inspired him in paintings. After the controversy of â€Å"Madame X,† painting Sargent moved to London whe re he had several commissions. In 1880, he tried to make up a client site in London and so experimented with landscaping and impressionism (Joselit 77). He incorporated the styles and elements of Monet and Manet in his work. By eighteen nineties, Sargent was the preferred portraitist of representation elites. As he entered sixties, he moved to landscaping turning away from trendy portraiture. Sargent never married and died in 1925. Exhibitions in recognition of his life were mounted the same year in London, Boston, and New York. The painting Thomas E. McKeller was an African American young muscular man when the image was done. He was a bellhop and Sargent considered his facial and muscular physique unique to pose for an oil painting. The acceptance of McKellar led to production of Thomas E. McKellar Nude Study. The painting exhibits Thomas kneeling on a cushion with his arms behind the body. The posture shows well-elaborated torso accompanied with a good amount of prominence and ten sion. Thomas head in the portrait has been tilted to the side and upward gazing maybe to the heavens. The success of Sargent portrait painting of the McKellar nude study depended on skilled use of visual elements and the mastery of them. In analyzing this portrait, he emphasized the physical element from the view of the portrait size and shape. The original size of the portrait is 125.73 x 84.45 cm (49 1/2 x 33 one/4 inch.) On the canvas. Considering the shape of the portrait, he painted it on distinct rectangular frame. He designed the portrait with an impressionable view of a three dimensional shape. Sargent was able to make this portrait descriptive object in that it physical characteristics are highly explicit with good visual capability. The physical depth of the â€Å"Nude study of McKellar† explores the hidden aesthetic means and value. He portrays the object clearly and openly where the physical analyses do not compromise the audience views and thoughts. The use of li nes as a main mean of painting style is well elaborated in this portrait. He makes good use of capricious lines on Thomas portrait hence his emotional intimacy can be deciphered in this work. The outer vertical lines of the frame give the portrait some calmness, nobleness, and sense of eternality. The horizontal use of line in the cushion part gives the painting indispensable visual element of calm and peace. There is also cross lines and irregular lines behind the body