The effects of concentration on reaction rates Essay Example for Free

The effects of concentration on reaction rates Essay I could back this conclusion up by doing two things. Firstly, I could use my average time graph (graph 1) to work out what time any concentration would take to complete its reaction. This is especially because of the fact that all my results I tested followed a trend. What I can do is to look where any concentration level is in line with the line of best fit, and then I could take this point on the line of best fit and look to see where that point lines up with the time taken. An example is on the next page: Here you can see that the point indicated as the intersecting point is where the concentration levels and time taken axis meet on the line of best fit. This is exactly how I could prove my conclusion correct, by taking any concentration, and then test the concentration in the same way as in my method to see if the time taken follows this pattern. If it does, then I could easily prove my conclusion to be correct. Evaluation: The times would have been very unlikely to be the same, particularly under the conditions of the fact that we had a strict time limit of two lessons, including getting the equipment out and clearing it up again. Overall, this was a very tight deadline to meet, and I eventually realised I needed to try and run my first and second tests simultaneously in the second lesson, as I was nearly out of time. This rush could easily have affected my final results in several ways, all because of the rush I was in to get all my results. The magnesium floating in the HCl may have been a problem too. I dont think it would have affected the results much, but because it was floating, not all of the magnesium was in the acid at the same time throughout the reaction, and therefore this may have meant the reaction took longer as it couldnt react with all of the magnesium straight away. I could have got over this by poking the Mg down, but that may have affected the results as well. If I were to use a substance that would react with the HCl in ANY way (even if it would be unnoticeable to the naked eye), then the reaction rates would have probably slowed down, because some of the HCl would have reacted with the other substance, leaving less of it to react with the Mg. The other (more obvious) point is that I would have found it hard to poke three pieces of Mg in different test tubes down at once. The other way which I could have solved this, would be to make the density of the Mg larger, so that the Mg would sink naturally to the bottom of the test tube. This could have been done either by redoing the tests with more magnesium (a longer strip), or by using less HCl. I would have done this, but the tight time limit meant that I couldnt redo all the tests that I have already done in time, before realising this. Another way my results could have been affected is that because the 0. 1 reading took a long time to complete, meaning that I may not have noticed that the reaction had finished straight away. I dont think this happened, though, so Im not too worried about this. Finally, and this occurred in my second test which could indeed explain my ringed faulty result, I admit, time got the better of me and so I didnt wash out my measuring cylinder out after measuring each concentration of acid. I may have measured smaller concentrations first and these concentrations could have mixed with the one I was using then to not give the mole that I said I was using for this test. To get over this problem, I could either have rinsed out the cylinder before measuring each concentration, or even by sharing cylinders with other people, of which each cylinder would only be used for one concentration. Overall, despite these problems, I dont think I will have made a bad attempt at the experiment, because the results were similar both times and they did follow a trend on my two graphs. 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. Download this essay Print Save Heres what a teacher thought of this essay 3 star(s).

The Philippines And The World Market :: essays research papers

The Philippines and the World Market   Ã‚  Ã‚  Ã‚  Ã‚  The Philippines is considered to be one of the most westernized countries in Asia. It has strong ties to the United States and the United Nations. In fact, It is the only charter member of the U.N. in all of Southeast Asia.   Ã‚  Ã‚  Ã‚  Ã‚  The United States has a very close relationship with the economy and culture of the Philippines. For instance, Filipinos have a strong resentment toward communistic countries. During the cold war, the Philippines supported America by consistently being hostile toward communist countries, and did not maintain diplomatic relations with the Soviet Union or any other communist state.   Ã‚  Ã‚  Ã‚  Ã‚  The United States is the largest foreign consumer of Philippine products. In many ways the survival of the philippine economy depends on the united States. We purchase almost all of the sugar exports, most of the coconut oil, embroidery, at least half of the base metals, and a fourth of the lumber. The United States supplies most of the Philippine imports of machinery, dairy products, cotton, papers, drugs, automobiles and much or the petroleum products. Although countries like Japan, Canada Australia, and New Zealand are getting more and more involved in trade with the Philippines, America remains to be the Philippines most important trading partner.   Ã‚  Ã‚  Ã‚  Ã‚  When America acquired the Philippines and established free trade in 1909, the economy of the islands was tied to that parent country. As a result, the Philippines became almost entirely dependant upon United States markets. Thus, America has had a strong influence on not only the economy of the Philippines, but also the politics of it.   Ã‚  Ã‚  Ã‚  Ã‚  The United States established a public education system in the Philippines in the early 1900 ¹s. Although they were not American schools they had many similarities. American teachers were used as well as American books.

Enrique Camarena Essay

Enrique Salazar Camarena, also known as â€Å"Kiki†, was born on July 26, 1947 in Mexicali, Mexico. At the age of nine Camarena moved to the U.S. and settled in Calexico, California. He worked in the fields with his family picking plums and peaches. Camarena yearned to get a proper education and soon it came. He took advantage of this opportunity and became an ethical student. He played football, basketball and helped publish the yearbook. Camarena was voted â€Å"Best all Around Senior.† He decided to attend college and enter the law enforcement field. Camarena served in the U.S. Marines, and became a Legal Clerk and a Court Recorder. In 1970, Camarena departed from the Marines and worked with the Calexico Fire Department. Camarena became a part of the Calexico Police Department as a Criminal Investigator in 1970, while he attended Imperial Valley College. There he got an AA degree and criminal justice degree. Camarena was sent to the El Centro, California Police Department Office and became a Narcotics Investigator for the Imperial County. In 1874, Camarena join the DEA (Drug Enforcement Administration). Camarena was a talented Drug Enforcement Special Agent. Camarena and family were transferred to an undercover investigation in Guadalajara, Mexico. In Guadalajara, his mission was to stop the Caro-Quintero Organization. Caro-Quintero, at the age 32, was the main leader of the wealthy organization. Camarena was about to conclude his case when he was captured during his lunch hour. It was the afternoon of February 7, 1985 when Camarena didn’t come home so his wife contacted his close friend, who then reported the kidnapping to the U.S. law enforcement officers. There was a vast amount of law enforcement officers sent to search for Camarena. There were a lot of people worried but no one was able to find Camarena. People said that the Caro-Quintero had paid the clubs to stay quiet. A few days later the law enforcement officers received a letter from an unknown person stating Camarena could be found at a ranch in Moreno, Mexico. When the law enforcement officers went to search the ranch they found nothing except a family that had been murdered. Later that same evening someone had stated they thought they had seen a dead body right outside the ranch. Sure enough  the dead body was Camarena. He had been savagely beaten and tortured to death. The date of his death was March 7, 1985. Till this day law enforcement officers do not know who actually murdered Camarena, but they do have their suspicions. About twenty-two people have been thought of pertaining or murdering Camarena. Twelve had been convicted; three of which were members of the Caro-Quientero Organization. Enrique Camarena People from all around respected Camarena. On February7, 1986 Calexico held a special ceremony in honor of him at the Calexico Library. The library has also been renamed Enrique â€Å"Kiki† Camarena Library. Camarena’s family wore red ribbons to honor him. The ribbons proclaimed â€Å"No use of illegal drugs, or no illegal use of legal drugs.† Now people all over the U.S, wear red ribbons on the days of Oct. 23- 31.

Intersectionality Essay - 727 Words

I will try to explain intersectionality. First of all you need to know what intersectionality is. Intersectionality is a theoretical framework which explains violence or discrimination against humans. Now I will give you an example and then try to connect it to intersectionality. I will use an example of spider web to explain this theory. This example will give you some idea about intersectionality. Think about a spider web. A Point in the centre and all threads connected to each other. If we remove one thread from the spider web, it will fall apart. Now consider yourself. You have some identities and these identities are connected just like spider web and we cannot remove any identity from you. If we remove any identity from you, then†¦show more content†¦I liked one definition of intersectionality which I would like to put here. â€Å"Intersectionality seeks to provide a tool for analyzing the ways in which gender, race, class and all other forms of identity and distinct ion, in different contexts, produce situations in which women and men become vulnerable to abuse and discrimination.†(1). When we try to study how the intersection of race, gender, social class, effects humans and how are they connected then it means we are using intersectionality theory. For example what are the problems of white, young, female and what are the problems of black, young female. What will happen if we remove young from the equation and replace it with old? Inequality of gender is clearly defined but inequality of same sex is complicated. If we want to know the problems of women and man then we might just find some sex related issues. But when we talk about just men or women then it’s a different story. I heard that all men are created equal but people use different lens to see it. For example, some time man is called black man or white man, Muslim man or Christian man. They are all men but their gender intersects with other identities and makes them diff erent from one another. When somebody is discriminated on the basis of color, we know this exist. Intersectionality tells us about other kind of discrimination. For example black man with different religion. It means same gender, same color, same language but different religion.Show MoreRelatedTheories of Intersectionality and Oppression1238 Words   |  5 Pagesthat all oppressions are inherently linked underlies the theory of intersectionality that implies interactions of multiple systems of oppression, discrimination, and exclusion. Although we have been exposed to an extraordinarily wide variety of literature throughout the semester, with various standpoints, from very different regions of the world– the one unique concept in which they share is this underlying theme of intersectionality. In their own way, each author points out that we must recognizeRead MoreIntersectionality : A Primer By Christine Emba1756 Words   |  8 PagesGWS 10 Midterm #1 Part 1: Intersectionality 1) The term intersectionality is a concept that is new to me, but gives me a deeper understanding of how people are strongly affected not only by one form of discrimination, but by multiple forms simultaneously. The reading Intersectionality: A primer by Christine Emba defines intersectionality as a term used to describe and recognize how race, class, and gender are separate categories that can overlap and intersect (Emba, 2015). Many times these categoriesRead MoreIntersectionality715 Words   |  3 PagesIntersectionality of Gender Inequality Name: Institution: Intersectionality of Gender Inequality For many decades, women have experienced all forms of oppression and constant violence that threatened their existence in the male-dominated society. Various forms of discrimination and oppression have been directed to women for decades. Violence directed at women such as rape and battery were seen and treated as isolatedRead MoreIntersectionality Essay853 Words   |  4 PagesBerlyn Valdez WGS 150 October 16, 2017 Midterm Essay Intersectionality The term intersectionality is a very complex word with room for an open range for multiple definitions. Intersectionality is used to understand numerous types of oppressions and discriminations against people. Although, intersectionality wasnt used as a term until the 1980’s by Kimberle Crenshaw, an american civil rights activist and feminist, as a label for the types of oppressions women of color experienced. This is crucialRead MoreIntersectionality Importance1081 Words   |  5 PagesIf I were to say â€Å"intersectionality†, most people I know, besides the ones outside of this geography course, would have no idea what I meant. As a matter of fact, I myself had never heard of intersectionality before the guest lecture. So, what exactly is intersectionality, why is it important, how does it affect identity, and how does it fit into the context of a geography class? I will be answering all these questions in my essay. So, to begin to understand intersectionality and its importanceRead MoreFeminism And The Feminist Movement1006 Words   |  5 Pagesfeminism began emerging. It was not until Kimberlà © Crenshaw introduced the term â€Å"intersectionality† in 1989 that feminism started to look at oppressed group’s needs (Nash, 2008, 2). Intersectionality is a way of thinking that acknowledges that when a person has identities that belong to more than one oppressed group, it impacts their quality of life more negatively. In this paper, I will argue that intersectionality is important in the discussion of feminist theories and activism because it ensuresRead MoreTheu.s. Bernard s Lecture Notes, And Class Discussions952 Words   |  4 PagesThis week readings, lecture notes, and class discussions, reminded me of my experience with intersectionality in United States. Arriving in American in 1979, my first encounter of intersectionality was in my junior high school, where my race, gender, and culture had a negative role to play in my life. First, on preparing to emigrate to American with my family, my older sisters and I had our hair platted in cornrows with colorful beads, not knowing the negative impact it might evoke upon arrivingRead MoreThe Intersection Of Race And Sex1329 Words   |  6 PagesIntersectionality is defined by social categories, such as race and gender that have interconnected to apply to individuals and groups, causing an overlap, which has consequently created a system of discrimination and disadvantages (English Oxford Living Dictionary, 2016). Kimberle Crenshaw coined the term in her article ‘Demarginalizing the Intersection of Race and Sex: A Black Feminist Critique of Antidiscrimination Doctrine, Feminist Theory and Anti-racist Politics’ (1889) whereby her main focusRead MoreFeminism, By Simone Beauvoir Essay1734 Words   |  7 Pagesas inferior. Thus, the reason why a woman is defined as the other is because man has set himself against her for he does not want to be equal to a woman. Question two Kimberle Crenshaw used intersectionality theory to show how gender and race discrimination was experienced by black women. Intersectionality is a theory that studies overlapping discrimination. In her study, the author noted that black women faced gender and race-based discrimination, especially in the work place. If black women hadRead MoreUnspeakable Conversations By Harriet Mcbryde Johnson1184 Words   |  5 Pagessocially permitted against them because they are the deviants of society (Young 53). In our society, the stigma of disability has been socially constructed and disabled people have long been discriminated (Wendell 101). In Vivian May’s essay on Intersectionality, one critical practice is that it can â€Å"challenge false universal and highlighting omissions built into the social order and intellectual practices† and Johnson follows this practice in â€Å"Unspeakable Conversations† (May 81). Harriet McBryde Johnson