Chemistry Lab Preparation Of A Dye - 830 Words

CH 220C – Organic Chemistry Lab Experiment 14: Preparation of a Dye: Azo Violet Rodan Devega Introduction The purpose of this laboratory experiment was to synthesize azo violet, and conduct a product analysis in the form of a dyeing test and indicator test. Synthesizing azo class dyes typically involves two steps, diazotization and diazonium coupling. Diazotization is the conversion of a p-nitroaniline’s amino substituent to a nitrogen-nitrogen triple bond, resulting in the formation of an aryl diazonium salt. It is facilitated with sodium nitrite and hydrochloric acid. Diazonium coupling, an electrophilic aromatic substitution, is the coupling of the aryl diazonium salt and resorcinol to form azo violet. It is facilitated with sodium acetate. Product analysis was conducted on azo violet in an effort to examine its response to the pH of different solutions (indicator test) and confirm its identity (dyeing test). Data and Results Qualitative observations concerning the synthesis of azo violet can be found on page 52 of carbon-copy notebook. Discussion A phosphodiesterase (PDE) is any enzyme that has the ability to break down phosphodiester bonds. Enzyme regulation may occur via metal-dye complexes within biological cells. Azo class dyes are molecules characterized by nitrogen-nitrogen double bonds that allow for conjugation within the molecule. Additionally, these dyes portray the essence of color as it reflects back light of different colors that is not absorbed. AShow MoreRelatedMy Career In Energy Technology1302 Words   |  6 PagesBackground My career in energy technology began in 2012, when I started my master’s coursework and research in electrochemistry at the University of Louisville’s Department of Chemistry. Since then, I have developed an extensive skillset, focusing mainly on the development and usage of semiconductor materials such as titanium oxide (TiO2), tin-oxide (SnO2), birnessite-manganese oxide (b-MnO2), and neodymium oxide (Nd2O3). I have extensively studied the photophysics and photochemistry of energeticRead MoreMy Career In Energy Technology And Surface Chemistry1386 Words   |  6 PagesBackground My career in energy technology and surface chemistry began in 2012, when I started my master’s coursework and research in electrochemistry at the University of Louisville’s Department of Chemistry. Since then I have developed an extensive skillset, focusing mainly on the development and usage of semiconductor materials such as titanium oxide (TiO2), tin-oxide (SnO2), birnessite-manganese oxide (b-MnO2), and neodymium oxide (Nd2O3). I have extensively studied the photophysics and photochemistryRead MorePreparation of P-Nitroaniline1671 Words   |  7 Pages 1 mol = 1.839 g Experimental yield of p-Nitroaniline: Amount of p-Nitroaniline by mass obtained in lab: 1.74g % yield: Actual yield x 100% = 1.74 g x 100% = 94.62% Theoretical yield 1.839 g % difference from theoretical = |1.74 g Ââ€" 1.839 g| x 100% = 5.38% 1.839 g Discussion The final yield for the preparation of p-Nitroaniline experiment was 1.74g, giving a percentage yield of 94.62%. The theoretical yield obtained throughRead Morestudy of adulterants in food stuff1901 Words   |  8 PagesPROJECT OF CHEMISTRY STUDY OF ADULTERANTS IN FOOD-STUFFS Index Certificate 3 Acknowledgement 4 Food adulteration 5 Infections due to adulteration 7 Experiment-1 9 Experiment-2 10 Experiment-3 11 Bibliography 13 Certificate of Authenticity This is to certify that a student of  class 12th has successfully completed the research project on the topic â€Å"Study of adulterants in food-stuffs† under the  guidance of This project is absolutely genuine and does not indulge in plagiarism ofRead MorePreparation of Acetanilide1398 Words   |  6 PagesLearning Activity 1 Preparation of Acetanilide Abstract Recrystallization is a common method of purifying organic substances through the difference in solubility at different temperature. In this experiment, acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heating water bath. The solution was cooled slowly in an ice bath as crystals form out. As the compound crystallizes from the solution, molecules of other compoundsRead MoreSynthesis Of Triphenylamine Based Dye And Fabrication Of Dssc Device3205 Words   |  13 PagesReport for B.Tech Project Synthesis of triphenylamine based dye and fabrication of DSSC device A Project Report Submitted to the Department of Chemistry, Indian Institute of Technology Guwahati As a part of the requirement for the degree of Bachelor of Technology by Arvindh Sekar Roll No. : 11012206 Statement I hereby declare that the work embodies in this project report titled Synthesis of triphenylamine based dye and fabrication of DSSC device by Arvindh Sekar represents an originalRead MoreNitration of Cobalt(Iii) Acetylacetonate4150 Words   |  17 PagesRossi/Kuwata Chemistry 222 Spring 2011 Experiment 2: Spectrophotometric Determination of Iron in Vitamin Tablets (Adapted from Daniel C. Harris’ Quantitative Chemical Analysis and R. C. Atkins, Journal of Chemical Education 1975, 52, 550.) 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On the whole, there is a very significant amount of processing done to our food between the points at which it is taken from nature as an ingredient, to the point that it reaches our mouths at the table. There are literally thousands of vari ous additivesRead MoreA Form Of Geometric Art Invented By The Famous Dutch Artist2670 Words   |  11 Pages238). By the year 1925, the students at the Bauhaus were privileged enough to study under these original elementary artists and architects. Walter Gropius, a German-American artist, started referring to the architectural study at the school as a preparation for the life at modern industry. They believed the machine to be their contemporary instrument of design. Craft training helped the students to get an overall experience of their future life in their respective field and also prepared them to be

Kant And Aristotle s Views On Ethics And Morals - 1480 Words

Alyson Huttlin Professor Strom Philosophy 300 Class Section 1200 Recitation-Tuesday 10am 2/11/2015 What Is The Highest Good? Immanuel Kant and Aristotle are two of the most prominent philosophers on ethics and morals. Each has their own idea about human life and what the highest good is. It has even been said that in his Grounding for the Metaphysics of Morals Kant disproves Aristotle’s view. In order to prove that Kant successfully disproves Aristotle’s theory, we must first understand both theories. After a successful understanding has been acquired only then can we prove that Kant’s completely disproves Aristotle’s theory. In the Grounding for the Metaphysics of Morals Kant explains that there are many goods including happiness, food and desires, but there is only one highest good. This highest good is a good without qualification. The implication being that this highest good is inherently good in itself. Kant further explains that there is only one highest good or one good without qualification which is good will. Good without qualification is a bit vague so Kant has several criteria involved in determining what it is and why good will satisfies them. Good will comes from doing actions out of duty. The definition of duty here is similar to the sense of pledge. This is very specific in that the action must be done because of duty, not simply in accordance with duty (Kant 10). Performing actions in this way gives the action itself moral worth. Both duty and moral worthShow MoreRelated Ethical and Philosophical Questions about Value and Obligation977 Words   |  4 PagesQuestions about Value and Obligation I Recall the distinction between metaethics and normative ethics. Normative ethics deals with substantial ethical issues, such as, What is intrinsically good? What are our moral obligations? Metaethics deals with philosophical issues about ethics: What is value or moral obligation? 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This is more likely to be true thanRead MoreComparing Aristotle And John Stuart Mill1130 Words   |  5 PagesChelsea Kearney PHIL 231: Ethics 28 April 2015 Essay 2 Comparisons on Pleasure in Morality The role of pleasure in morality has been examined thoroughly throughout the beginning of philosophy and continues to be a questionable issue. With these in-depth examinations, some similar outlooks as well as differing views have been recorded. Many philosophers have dissected this important topic, however I intend to concentrate of the famous works of Aristotle, Immanuel Kant, and John Stuart Mill. AfterRead MoreMoral Theories Can Help Justify The Decisions That Are Made882 Words   |  4 PagesMoral Theories Moral theories can help justify the decisions that are made. Each theory has separate viewpoints in which other theories borrow elements from. Moral theories attempt to explain what it is that makes some actions right and others wrong. These are then used as a guide to making choices. They operate at a more general level than moral or legal principles and rules. The four main groups that one should be aware of are: Utilitarian, Kantian, Aristotelian and Feminist. Utilitarian UtilitarianismRead MoreEssay What Moral and Ethical Obligations do Humans Have to Animals1492 Words   |  6 Pagesabhorrent. This notion of cruelty invites debate surrounding the complex and multi-faceted issue of the moral and ethical obligations humans have in respect to other animals. The issue of battery hen farming is further confounded by economic, social, political, and food security issues. For these reasons the issue warrants further investigation. The main focus of the essay is to explore the moral and ethical issues which humans have towards non-human animals using battery hens as a case study to highlightRead MoreAristotle s Nicomachean Ethics On Virtues And The Quality Of Character A Person1543 Words   |  7 Pagesquestion that was asked is what is ethics? 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Fashion and Gender free essay sample

In the western culture, fashion has affected and reflected the distinctions between the social and economical status of men and women throughout the years. From the 19th century on, gender, social understanding of femininity and masculinity, became clearer and more precise. They were identifiable through fashion and clothing and were an important aspect in distinguishing roles of men and women. However, changes in fashion will blur as much as emphasise the differences between gender, evolving in parallel borrowing from one another. Thus, as the constant changes in fashion, the level of differences between men and women varied very so often. Fashion was influencing and defining gender role and gender lifestyle was influencing fashion. Masculine men and feminine women The first signs of gender distinctions appeared at the start of the 19th century following the French Revolution. In addition to separating social classes, fashion now established a clear division between male and female clothing. Men were no longer powdered or perfumed and they got rid of ornaments and wigs, now signifies of femininity. Their clothing was characterized by a restricted use of material, tailored construction, simplified set of surface, uniformity, net and spotless garments, perfect hats and limited color (29 January). According to the trickle-down effect, fashion trends were still created by the upper-classes and were followed by others down the scale (05 February). Then, according to Georg Simmel, two types of males emerged from the middle-class. Dandies were followers of the leisure class and never went against a particular fashion dress code while bohemian were rejecting fashion (05 February). Men of the upper-class are characterized as a Flaneur by Walter Benjamin: â€Å"Empathy is the nature of the intoxication to which the flaneur abandons himself [†¦]† (05 February). The upper-class still needed to follow three rules in order to stay on top and keep the middle-class from rising; the expensive fabric, the lack of movement inflicted by the garment and the novelty of the ensemble (05 February). They conformed to a conspicuous lifestyle with their absence of labour and function in the society, but still in a more subtle way than women in terms of dress (29 January). Indeed, women became a physical display representing the husband’s wealth through fashion, assuring their social rank in the leisure class; the new aristocrats. Important gatherings such as the Grand Prix de Paris were a place where â€Å"one went to the races, as to the theater, partly to look over the women and their apparel† (Hebert, 24). They would wear multiple colors, dresses with pouf skirts, light fabrics, beading and flower ornaments, parasols and other accessories. Women were placed in the forefront with fashion and devoid of any role or power. [†¦] the adornment of both the female person and her environment was an expression of women’s inferior economic power and her social status as a man’s chattel† (Veblen, 91). Unattached and unmarried women were also expected to dressed respectfully and fashionably for the dignity of her family and for future husbands. Lower-level women such as actresses and prostitutes, who were mingling with the upper-class, wore more revealing clothes but still in fashion. Women were thought of as irrational and sensible creatures who adhered to fashion by weakness, to have a sense of belonging. During the 19th century and early 20th century, there is a clear distinction between man and woman fashion. It is reflected in their clothes and in their social status and role in the society. Gender was easily identifiable with the shape formed by the garment. While men wear clean cut, sober and solid suits, holding all the power, the women dress in soft, elaborate and colourful dresses, trophies to the men. ? Fashion upside-down With the start of the World War I, women were now helping out and filling more masculine jobs. Roles were no longer clearly defined according to hysical characteristics. â€Å"Because while war work forced women to life in new social and physical environments, they had to adapt their clothing to unfamiliar activities and spaces† (Matthews David, 101). New technology and new combat techniques meant also a change in menswear. Soldiers had to wear uniforms that hid their masculine forms to allow movement. They replaced their flat and boxy hats with a mo re feminine and round one with leaves and flowers to hide in the trenches. â€Å"A definite outline, a traditionally masculine attribute, proved a deadly handicap in battle† (Matthews David, 97). Upper-class men were traditionally supposed to show their status through clothing. The advent of the war blurred distinctions between classes as both had to participate in the war effort. Men were no longer useless and ineffective in the society, with meant a necessary change in fashion. Restrictions in luxury fabrics, such as silk, fur and ornaments, forced a transformation of men’s masculine and luxurious attire. All men were now wearing jersey fabric clothing, darker earth colours and softer silhouettes. In the early 20th century, there was a eminent need for change in fashion. While men were adopting feminine fashion to survive during the war, women started borrowing the simplified and linear masculine silhouette. â€Å"The flip side of this feminization of the sniper was the much more generalized masculinization of women’s civilian and uniform dress during the war† (Matthews David, 101). They started wearing suits with sober colours to adapt to their more active lifestyle in the warfare. The latter was the start of a changing role in society for women. Before this change, women had no power on fashion or society. They were now needed for labour and they showed to be very efficient. This allowed women to make decisions and have a definite role society. By adopting the masculine look, they gained power. They were no longer considered as an accessory to men. The exchanges of particular characteristics of gender made the distinctions and the differences more blurry. The World War I was a turning point in fashion for both men and women. Shortages of materials transformed clothing; new fabrics emerged, new silhouettes using less fabrics, less ornaments, leaner cuts, suits for women and softer clothes for men. Women were now looking more or less like men with the square suits and linear dresses, requisitioning their roles as women as though the clothes itself hold the power. While men were still the dominant figure, women were revising their position in the public and private sphere. ? Conclusion To conclude, gender is a social perception of masculinity and femininity. Through the 19th and 20th cent ury, both men and women were affected by fashion; gender leading the distinctions. Sexes were defined by gender in the 19th century with the specific trends of clothing for each. Men were wearing clean and linear cuts, showing their boxy figures, while women wore elaborate and frivolous clothes highlighting their silhouette. Roles were also clearly different according to gender. Men held all the power and women served of accessories, displaying the husband’s wealth. The World War I acted as a turning point for men and women. Both were transforming their fashion because of their active lifestyle by adopting each others gender characteristics of fashion. Men softened their figures while women started wearing masculine suits. Gender differences became were blurred and roles redefined; women gained power and all men got functional for the society. Hence, the level of distinction between gender is in constant change. Fashion influences gender roles and gender lifestyle influences fashion. The latter blurs, blends as well as emphasis the social perceptions of what a men and a women is and looks like. Gender continues to affect and reflect distinctions between sexes, both constantly borrowing and exchanging from one another.