The rate of reaction between Nitric Essay Example for Free

The rate of reaction between Nitric Essay Hot water   Thermometer   Ice Method: The Trough Method 1) Pour water into plastic container. 2) Pour water into measuring cylinder, and place it upside down in the plastic container full of water. 3) Place rubber tubing inside measuring cylinder. 4) Clamp the measuring cylinder in place. 5) Pour water (of the temperature you have chosen) into a beaker. 6) Pour 20cm3 of nitric acid into a boiling tube. 7) Place a calcium carbonate chip (of what mass you have chosen) inside the boiling tube. 8) Place bung firmly on top of the boiling tube. 9) Start the timer as soon as you place the bung on the boiling tube. Safety: 1) Wear safety goggles. 2) Hold bung from the end and not from the delivery tube to avoid injury. 3) If there is hot water in a beaker, hold the beaker from the rim. 4) Also place apparatus on the middle of the bench to avoid spillages and to avoid injury. How I kept it a Fair Test: I kept the mass of the calcium carbonate chip at 0. 48g. I kept the amount of nitric acid at 20cm3. I equilibrated the equipment to the reacting temperature. I took the same amount of time placing the marble chip in the boiling tube each time. Results Volume of CO2 lost Temperature (i C) 4i C Time (min) Run 1 Run 2 Average. Time (min) Run 1 Run 2 Average  This shows that at low temperatures, there will be a slower rate of reaction. Graph B shows that1:30 min and 4:00 min there was a significant increase in the loss of CO2. The rate of the reaction was 9. 66 cm3/min. Graph C is similar to Graph B as the reaction starts of slowly but increases as time passes. The rate of the reaction at 27? C was 12. 33 cm3/min. Graph D is also very similar to the two previous graphs as it starts slowly but gains speed towards the end. The rate of the reaction was 14 cm3/min. Graph E starts off very quickly but starts to taper off towards the end. The rate of the reaction was 35. 5 cm3/min. The final results show that my prediction was correct. I predicted that as the temperature is increased the faster the reaction would take place. Cool acid particles have little energy, therefore do not collide with the marble chips very often, and for a chemical reaction to occur you need many successful collisions between the acid particles and the marble chip. The hotter the acid, the faster the collisions and the reaction speeds up. The rate of a chemical reaction is increased by increasing the temperature and alternatively decreased by decreasing the temperature. The increase in the rate of reaction with temperature can be explained by the collision theory. An increase in temperature increases the energy of the reacting particles. This makes more energy available for the breaking of bonds, which must take place in order for a chemical reaction to occur. Bond breaking is more frequent at higher temperatures. Increase in temperature Of reactants Evaluation The procedure we used was not as accurate as others that could have been used instead. Possible reasons for errors in this experiment were: Top Pan Balance Timer Measuring Cylinder Thermometer. Another possible error in this experiment was that some of the Carbon Dioxide dissolved into the water in the measuring cylinder. The solubility depends on the temperature at which the water was. Also the size of the bubbles and the rate of production of the bubbles both contributed to the experimental error. Experimental Error 1. Top Pan Balance: This was only accurate to three decimal places, as the mass of the marble chip had to be 0. 48g the experimental error would be: 0 The experimental error for the top pan balance is relatively low. 2. Thermometer: This was only accurate tFor the thermometer as the temperature increased the experimental error decreased therefore I was more likely to find an error in my results at the lower temperatures. For the measuring cylinder when the volume is small the error is large. The total experimental error for each temperature is: C- 4. 3003% error 37? C- 3. 9003% error As you can see, the lower the temperature the higher the experimental error. Improvements   Marble chips- I could not ensure the size and mass of each marble chip, therefore could employ a sieve type mechanism. Range- I would spread the temperatures out more even; however have less error owing to lower temperatures. Water- I would have water, which was saturated with sodium hydrogen carbonate (NaHCO3). As this allows little CO2 to dissolve in it. Bibliography: GCSE Chemistry Revision Guide: Co-ordination Group Chemistry: Hunt and Sykes Understanding Chemistry (A-level):Ted Lister and Janet Renshaw Appendix   Includes Graphs A-E Sheryar Majid Chemistry Coursework 2000/2001 Dr Wright 1 Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Patterns of Behaviour section. o

You Can’t Say That: The Growing Threat to Civil Liberties from Antidisc

You Can’t Say That: The Growing Threat to Civil Liberties from Antidiscirmination Laws You Can’t Say That is a truly important book, for it reminds us that no social revolution, even the most morally justified, is costless. The Civil Rights Act of 1964 did indeed precipitate a social revolution, one that at long last began to deliver on the promise of the Emancipation Proclamation. Over the nearly half-century since its passage much has changed in America, and for African-Americans that change has been both grievously overdue and remarkable in its sweep, although still very much a work in progress. However, this is not a book that catalogues the successes of the antidiscrimination movement that burgeoned in the wake of the 1964 Act, but rather an elegy to what must count on the other side of the ledger, to what has been compromised in the noble quest for racial equality. In this eloquent and accessible book, remarkably free from the lawyer’s propensity to stultify the laymen with a blizzard of case law, it is clear that the principal cost has been to First Amendment values, sacrificed too cavalierly when they conflict with antidscrimination principles. One need only look to the publisher of Bernstein’s book, the Cato Institute, to see that the ideological landscape has been radically altered since the 1960s, when New Deal liberals still dominated the left, and the First Amendment comprised the heart and soul of their United States Constitution. Even earlier, before World War II, when Communists held sway on the left, the First Amendment was sacrosanct: to Communists it was their second favorite constitutional amendment, after the Fifth, prized as a stratagem to protect their freedom to subvert. For... ...ork’s most prestigious museums did not display enough art produced by women. Housing and Urban Development officials used the Fair Housing Act amendments to intimidate neighborhood groups that sought to exercise their free speech rights to campaign against group homes for the disabled, while those charging discrimination have sometimes been allowed by courts to enter into evidence a defendant’s past political speech. These examples are the tip of Bernstein’s iceberg. Even good causes can run amuck if fundamental constitutional principles are set aside: noble ends can be compromised by hasty or tainted means. This book is a red flag, which we ignore at our peril. Works Cited: You Can’t Say That: The Growing Threat to Civil Liberties from Antidiscirmination Laws by David E. Bernstein. Washington, DC: CATO Institute, 2003, 197 pages, $20.00

Incredible India Essay

Tourism is a major industry in India and the Ministry of Tourism launched a campaign to promote Incredible India as a tourist destination in 2002. [2] The phrase â€Å"Incredible India† was adopted as a slogan by the ministry. Before 2002, the Indian government regularly formulated policies and prepared pamphlets and brochures for the promotion of tourism, however, it did not support tourism in a concerted fashion. However, in 2002, the tourism ministry made a conscious effort to bring in more professionalism in its attempts to promote tourism. It formulated an integrated communication strategy with the aim of promoting India as a destination of choice for the discerning traveler. The tourism ministry engaged the services of advertising and marketing firm Ogilvy & Mather (India) (O&M) to create a new campaign to increase tourist inflows into the country. [3] Travel industry analysts and tour operators were appreciative of the high standards of the ‘Incredible India’ campaign. â€Å"The promo campaign is making a powerful visual impact and creating a perception of India being a magical place to visit,† said Anne Morgaon Scully, President, McCabeBremer Travel, Virginia, USA. Average travelers too appeared to find the campaign interesting and informative, going by favourable comments on blogs on travel websites Although the ‘Incredible India’ campaign was generally well received, industry observers differed in their opinions on the positioning of India in the campaign. G. S. Murari, Director, Fidelis Advertising and Marketing Pvt. Ltd. stated he was uncomfortable with the tagline ‘Incredible India’ and was of the opinion that since India was not a uni-dimensional country like Singapore or the Maldives, using a word like ‘incredible’ to describe India as a whole was not appropriate. In 2011, Arjun Sharma, Managing Director, Le Passage to India, stated that the campaign has lived its life and it had to be reinvented. [8] The Ministry of Tourism has again engaged Ogilvy & Mather for a period of three year, beginning 2012, to redefine the brand and provide a strategic vision for the campaign. From ancient times, India has been looked upon as a place full of Mystique. In olden days time travelers like Huen Tsang came a long way with a great difficulty just to have felt of the place. But now in modern times, with supersonic jets, the world has become a smaller and has been named as a â€Å"global village†. With the destinations becoming so much closer the tourist are pouring into India from all over the world leading to a fast development of tourism industry and yet it has not grown to its fullest potential. History has lost count of hordes of humanity which have travelled and through this land of vibes and wisdom; explorers, travelers, traders and invaders have been drawn to her shores. Fa Hien and Hieun Tsang came from China in search of Bhuddha’s calm serenity; from Alexander to Tamburlaine and Nadir Shah, Mahmud Ghaznavi, Muhammad Shah Ghauri to Babar, and Vasco-De-Gama to East India Company. All came here to fill their coffers with the wealth of this land; Jews, Parsees, Muhammedans, Christians, Arabs, Persians, Turks, Orientals and Europeanshave been all made welcome here. India has some incredibly beautiful spiritual destinations located all over the country. From the majestic peaks of Himalayas to the ghats of holy Ganga to numerous other holy sites, one can go for an unforgettable spiritual journey through this majestic country.

This Is My Body, My Soul, My Ink Essay - 1328 Words

I sat down in the chair while the artist prepared his instruments. I wasnt afraid. This wasnt my first time, and I knew it wouldnt be the last. In fact, I was getting work done on an existing piece of skin art on my back. The artist was a formally trained commercial artist and a very close friend. We had worked for over a year on this particular piece. I was ready. My body tensed, awaiting the machine on my skin. He asked, Ready? I just nodded my head. Its never what you think it will be. The machine touched my skin. My body immediately felt the blood coursing through my veins; my heart pounded in my temples, and I could feel the color drain out of my face. My body wanted to go limp. After a few minutes though, my body†¦show more content†¦When this happened, the tradition of being tattooed was left to only chiefs and their sons. Today, the Samoans have gone back to their won tradition of allowing everyone to be tattooed. You dont have to be a biker or a convict to be tattooed. People have been marking their bodies since the beginning of time; Tattooing is the oldest art form around (Austin 18). There is evidence that our ancient ancestors were marking their bodies 10,000 years ago and recently a 4,000-year-old, tattooed warrior was discovered in the Austrian alps (18). Tattooing is not new to human culture. Tattooing has been used to differentiate between tribes of people, mark the passing of childhood into adulthood, and commemorate courageous deeds (18). Even our earliest civilization, ancient Egypt, used tattooing. Archaeologists have found tattooed female mummies dating back to 4000 B.C. Other civilizations after the Egyptians used tattoos. The Romans were one such civilization. They tattooed their faces; today, facial tattooing is called mocha. The Romans probably began to tattoo their bodies after encountering a wild tribe of people in the northern islands which were once called Brittania. They called the people they encountered Picts because they had pictures all over their bodies. We now know these ancient people to be the Celts; their design, coupled with their outwardShow MoreRelatedPolynesian Beauty : The Traditions Of The Tattoo Essay933 Words   |  4 Pagestheir bodies that they consider strong in culture, beliefs and are remarkable to the wearer of the design, just to acquire what beauty is. There are different techniques, meanings, and tools of the Hawaiian style of tattooing. Which would consist of the person’s cultural expressions, their beauty, and their identity. In this specific culture, there are rules saying what men and women can and cannot ink onto their bodies. The Hawaiian culture have standards when it comes to a person’s body. 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